74VHC14MTCX,74VHC14MX,74VHC14MTC,74VHC14M,规格书,Datasheet 资料
74系列芯片详细功能介绍
74系列数数字电路7400、74H00、74L00、74LS00、74S00、74HC00、74C00、74F00、74ALS00四2输入与非门Y=\AB。
7401、74LS01、74HC01、74ALS01四2输入与非门(OCY=\AB。
7402、74L02、74LS02、74S02、74HC02、74C02、74ALS02、74F02四2输入或非门。
Y=/A+B。
7403、74L03、74LS03、74ALS03、74S03、74HC037404、74H04、74L04、74S04、74HC04、74C04、74F04、74ALS04六反相器Y=/A。
7405、74H05、74LS05、74S05、74HC05、74F05、74ALS05六反相器(OCY=/A。
7406、74LS06六反相缓冲器/驱动器(OC、高压输出Y=/A;是7405高耐压输出型,耐压30V。
7407、74LS07、74HC07六缓冲器/驱动器(OC、高压输出Y=A; 30V耐高压输出。
7408、74LS08、74F08、74ALS08、74S08、74HC08、74C08四2输入与门Y=AB。
7409、74LS09、74F09、74ALS09、74S09、74HC09四2输入与门(OC Y=AB。
7410、74H10、74L10、74LS10、74ALS10、74S10、74HC10、74C10 74H11、74LS11、74S11、74F11、74ALS11、74HC11三3输入与门Y=ABC。
7412、74LS12、74ALS12三3输入与非门(OCY=\ABC。
7413、74LS13双4输入与非门Y=\ABCD。
7414、74LS14、74HC14、74C1474H15、74LS15、74ALS15、74S15三3输入与门(OCY=ABC。
7416、74LS16六反相缓冲器/驱动器Y=/A;7417、74LS17六缓冲器/驱动器(OC、高压输出Y=A;15V耐压输出。
74HC14芯片中文资料文档
2009 年 07 月 08 日星期三 16:1974HC14的作用：六反相斯密特触发器真值表： Y=AInput 输入output 输出A YL HH L图 1引脚功能极限参数：Supply Voltage电源电压7VInput Voltage输入电压7VOperating Free Air Temperature Range自由空气温度范围0℃ to +70 ℃Storage Temperature Range储存温度范围- 65℃ to +150 ℃Recommended Operating Conditions建议操作条件SymbolParameter参数最小典型符号单VCC Supply Voltage电源电压 4.755VT+Positive-Going Input Threshold Voltage正向输入阈值电压 (Note 2) 1.4 1.6VT-Negative-Going Input Threshold Voltage反向输入阈值电压 (Note 2)0.50.8HYS Input Hysteresis输入滞后 (Note 2)0.40.8-V IOH HIGH Level Output Current高电平输出电流---0.4mA IOL LOW Level Output Current低电平输出电流--8mA TA Free Air Operating Temperature工作温度0-70℃Note 2: VCC = 5V.Electrical Characteristics电气特性over recommended operating free air temperature range (unless otherwise noted)SymbolParameter 参数Conditions条件最小典型最大UNIT符号单位VI Input Clamp Voltage输入钳位电压VCC = 最小 , II = -18mA---1.5VVOH HIGH Level Output Voltage输出高电平电VCC=最小 ,IOH= 最大 VIL= 最大 2.7 3.4-V 压VOL LOW Level 输出低电平电压VCC= 最小,IOL=最大-0.350.5--Output Voltage 输出电压VIH = 最小---V VCC = 最小 , IOL = 4mA-0.250.4IT+Input Current at Positive-GoingVCC = 5V, VI = VT+--0.14-mA Threshold 正向阈值输入电流IT-Input Current at Negative-GoingVCC = 5V, VI = VT---0.18-mA Threshold 反向阈值输入电流II Input Current @ MAX Input Voltage输入VCC= 最大,VI=7V--0.1mA 电流 @最大输入电压IIH HIGH Level Input Current输入高电平电VCC = 最大 , VI = 2.7V--20μ A 流IIL LOW Level Input Current输入低电平电流VCC = 最大 , VI = 0.4V---0.4mAIOS Short Circuit Output Current短路输出VCC = 最大 (Note 4)-20--100mA 电流Supply Current with Out puts HIGH高电ICCH VCC = 最大平输出电源电流Supply Current with Outputs LOW低电平ICCL VCC = 最大输出电源电流--8.616mA1221mANote 3: VCC = 5V, TA = 25℃.Note 4: Not more than one output should be shorted at a time, and the duration should notexceed one second.Switching Characteristics开关特性at VCC = 5V and TA = 25℃Switching Characteristics开关特性at VCC = 5V and TA = 25℃Symbol Parameter参数RL = 2k Ω符号CL = 15pF CL = 50pF单位最小最大最小最大Propagation Delay Time LOW-to-HIGH Level Output低到高电平22825ns tPLH5输出传递延迟时间Propagation Delay Time HIGH-to-LOW Level Output高到低电平221033ns tPHL5输出传递延迟时间应用电路：图 2 光电藕合器接收整形电路图 3 方波振荡器。
74HC14中文资料
74HC14引脚图:
图1 引脚功能
74HC14真值表:
74HC14电气参数:
极限参数：
Switching Characteristics开关特性 at VCC = 5V and TA = 25℃
采用施密特触发器74HC14的光耦接收整形电路:
图2 光电耦合器接收整形电路
采用施密特触发器74HC14的方波振荡器电路
图3 方波振荡器
施密特触发器.主要用要将上下沿较缓或奇变较大的的数字信号变为方波形式以利数字信号接收电路识别.比如一串高频数字信号方波经过一个并普通光耦后波形可能奇变的后级不能识别,加一个74HC14进行整形
编辑本段74HC14概述：
74HC14是一款高速CMOS器件，74HC14引脚兼容低功耗肖特基TTL （LSTTL）系列。
74HC14遵循JEDEC标准。
74HC14实现了6路施密特触发反相器，可将缓慢变化的输入信号转换成清晰、无抖动的输出信号。
编辑本段特性：
应用：波形、脉冲整形器
非稳态多谐振荡器
单稳多谐振荡器
兼容JEDEC标准
ESD保护：
HBM EIA/JESD22-A114-A超过2000 V
MM EIA/JESD22-A115-A超过200 V
温度范围 -40～+85 ℃ -40～+125 ℃
编辑本段主要参数：
典型电源电压：
正向输入阀值电压：VT+=
负向输入阀值电压：VT-=
驱动电流： +/
传输延迟：12ns @5V
逻辑电平：CMOS
引脚：14
封装类型：DIP。
74系列逻辑芯片
74系列逻辑芯片74HC01 2输入四与非门 (oc)74HC02 2输入四或非门74HC03 2输入四与非门 (oc)74HC04 六倒相器74HC05 六倒相器(oc) )74HC08 2输入四与门74HC09 2输入四与门(oc)74HC10 3输入三与非门74HC11 3输入三与门74HC12 3输入三与非门 (oc)74HC13 4输入双与非门 (斯密特触发)74HC14 六倒相器(斯密特触发)74HC15 3输入三与门 (oc)74HC18 4输入双与非门 (斯密特触发)74HC19 六倒相器(斯密特触发)74HC20 4输入双与非门74HC21 4输入双与门74HC22 4输入双与非门(oc)74HC23 双可扩展的输入或非门74HC24 2输入四与非门(斯密特触发)74HC25 4输入双或非门(有选通)74HC27 3输入三或非门74HC28 2输入四或非缓冲器74HC30 8输入与非门74HC32 2输入四或门74HC33 2输入四或非缓冲器74HC34 六缓冲器74HC35 六缓冲器(oc)74HC36 2输入四或非门74HC37 2输入四与非缓冲器74HC38 2输入四或非缓冲器74HC39 2输入四或非缓冲器(集电极开路输出)74HC40 4输入双与非缓冲器74HC50 双二路2-2输入与或非门(一门可扩展) 74HC51 双二路2-2输入与或非门74HC51 二路3-3输入,二路2-2输入与或非门74HC52 四路2-3-2-2输入与或门(可扩展)74HC53 四路2-2-2-2输入与或非门(可扩展) 74HC53 四路2-2-3-2输入与或非门(可扩展) 74HC54 四路2-2-2-2输入与或非门74HC54 四路2-3-3-2输入与或非门74HC54 四路2-2-3-2输入与或非门74HC55 二路4-4输入与或非门(可扩展)74HC62 四路2-3-3-2输入与或扩展器74HC64 四路4-2-3-2输入与或非门74HC65 四路4-2-3-2输入与或非门74HC86 2输入四异或门74HC110 与门输入j-k主从触发器(带锁定)74HC128 2输入四或非线驱动器74HC132 2输入四与非门(斯密特触发)74HC133 13输入端与非门74HC134 12输入端与门(三态输出)74HC135 四异或/异或非门74HC136 2输入四异或门(oc)74HC260 双5输入或非门74HC266 2输入四异或非门(oc)74HC386 2输入四异或门。
74系列各个芯片详细介绍
74系列芯片资料程序匠人发表于 2005-10-29 19:20:00 阅读全文(2477) | 回复(0) | 引用通告(0) | 编辑74系列芯片资料反相器驱动器 LS04 LS05 LS06 LS07 LS125 LS240 LS244 LS245与门与非门 LS00 LS08 LS10 LS11 LS20 LS21 LS27 LS30 LS38或门或非门与或非门 LS02 LS32 LS51 LS64 LS65异或门比较器 LS86译码器 LS138 LS139寄存器 LS74 LS175 LS373反相器:Vcc 6A 6Y 5A 5Y 4A 4Y 六非门 74LS04┌┴─┴─┴─┴─┴─┴─┴┐六非门(OC门) 74LS05_ │14 13 12 11 10 9 8│六非门(OC高压输出) 74LS06Y = A ）││ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1Y 2A 2Y 3A 3Y GND驱动器:Vcc 6A 6Y 5A 5Y 4A 4Y┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│Y = A ）│六驱动器(OC高压输出) 74LS07│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1Y 2A 2Y 3A 3Y GNDVcc -4C 4A 4Y -3C 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐_ │14 13 12 11 10 9 8│Y =A+C ）│四总线三态门 74LS125│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘-1C 1A 1Y -2C 2A 2Y GNDVcc -G B1 B2 B3 B4 B8 B6 B7 B8┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8位总线驱动器 74LS245 │20 19 18 17 16 15 14 13 12 11│）│ DIR=1 A=>B│ 1 2 3 4 5 6 7 8 9 10│ DIR=0 B=>A└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘DIR A1 A2 A3 A4 A5 A6 A7 A8 GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器正逻辑与门,与非门:Vcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│Y = AB ）│ 2输入四正与门 74LS08 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐__ │14 13 12 11 10 9 8│Y = AB ）│ 2输入四正与非门 74LS00 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 1C 1Y 3C 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐___ │14 13 12 11 10 9 8│Y = ABC ）│ 3输入三正与非门 74LS10 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 2A 2B 2C 2Y GNDVcc H G Y┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│）│ 8输入与非门 74LS30│ 1 2 3 4 5 6 7│ ________└┬─┬─┬─┬─┬─┬─┬┘ Y = ABCDEFGHA B C D E F GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器正逻辑或门,或非门:Vcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐ 2输入四或门 74LS32│14 13 12 11 10 9 8│）│ Y = A+B│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 4Y 4B 4A 3Y 3B 3A┌┴─┴─┴─┴─┴─┴─┴┐ 2输入四或非门 74LS02│14 13 12 11 10 9 8│ ___）│ Y = A+B│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1Y 1A 1B 2Y 2A 2B GNDVcc 2Y 2B 2A 2D 2E 1F┌┴─┴─┴─┴─┴─┴─┴┐双与或非门 74S51│14 13 12 11 10 9 8│ _____）│ 2Y = AB+DE│ 1 2 3 4 5 6 7│ _______└┬─┬─┬─┬─┬─┬─┬┘ 1Y = ABC+DEF1Y 1A 1B 1C 1D 1E GNDVcc D C B K J Y┌┴─┴─┴─┴─┴─┴─┴┐ 4-2-3-2与或非门 74S64 74S65(OC门) │14 13 12 11 10 9 8│ ______________）│ Y = ABCD+EF+GHI+JK│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘A E F G H I GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器2输入四异或门 74LS86Vcc 4B 4A 4Y 3Y 3B 3A┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│）│ _ _│ 1 2 3 4 5 6 7│ Y=AB+AB└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2Y 2A 2B GND8*2输入比较器 74LS688_Vcc Y B8 A8 B7 A7 B6 A6 B5 A5┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8*2输入比较器 74LS688│20 19 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘CE A1 B1 A2 B2 A3 B3 A4 B4 GND_Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器3-8译码器 74LS138Vcc -Y0 -Y1 -Y2 -Y3 -Y4 -Y5 -Y6 __ _ _ _ __ _ _ __ _ _ __ _ ┌┴─┴─┴─┴─┴─┴─┴─┴┐ Y0=A B C Y1=A B B Y2=A B C Y3=A B C │16 15 14 13 12 11 10 9 │）│ __ _ _ __ _ __ _ __│ 1 2 3 4 5 6 7 8│ Y4=A B C Y5=A B C Y6=A B C Y7=A B C └┬─┬─┬─┬─┬─┬─┬─┬┘A B C -CS0 -CS1 CS2 -Y7 GND双2-4译码器 74LS139Vcc -2G 2A 2B -Y0 -Y1 -Y2 -Y3 __ __ __ __ __ __ __ __┌┴─┴─┴─┴─┴─┴─┴─┴┐ Y0=2A 2B Y1=2A 2B Y2=2A 2B Y3=2A 2B │16 15 14 13 12 11 10 9 │）│ __ __ __ __ __ __ __ __│ 1 2 3 4 5 6 7 8│ Y0=1A 1B Y1=1A 1B Y2=1A 1B Y3=1A 1B └┬─┬─┬─┬─┬─┬─┬─┬┘-1G 1A 1B -Y0 -Y1 -Y2 -Y3 GND8*2输入比较器 74LS688_Vcc Y B8 A8 B7 A7 B6 A6 B5 A5┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8*2输入比较器 74LS688│20 19 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘CE A1 B1 A2 B2 A3 B3 A4 B4 GND_Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8寄存器:Vcc 2CR 2D 2Ck 2St 2Q -2Q┌┴─┴─┴─┴─┴─┴─┴┐双D触发器 74LS74│14 13 12 11 10 9 8 │）││ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1Cr 1D 1Ck 1St 1Q -1Q GNDVcc 8Q 8D 7D 7Q 6Q 6D 5D 5Q ALE┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8位锁存器 74LS373│20 19 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘-OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND型号器件名称厂牌[数据表]SN7400四2输入端与非门 TI[DATA]SN7401四2输入端与非门(OC) SN7402四2输入端或非门 TI[DATA]SN7403四2输入端与非门(OC)TI[DATA]SN7404六反相器 TI[DATA]SN7405六反相器(OC)TI[DATA]SN7406六高压输出反相器 (OC,30V)TI[DATA]SN7407六高压输出缓冲,驱动器(OC,30V)TI[DATA]SN7408四2输入端与门 TI[DATA]SN7409四2输入端与门(OC)TI[DATA]SN7410三3输入端与非门 TI[DATA]SN7412三3输入端与非门(OC)TI[DATA]SN7413双4输入端与非门 TI[DATA]SN7414六反相器TI[DATA]SN7416六高压输出反相缓冲/驱动器 I[DATA]SN7417六高压输出缓冲/驱动器(OC,15V)TI[DATA]SN7420双4输入端与非门 TI[DATA]SN7422双4输入端与非门(OC)TI[DATA]SN7423可扩展双4输入端或非门 TI[DATA]SN7425双4输入端或非门TI[DATA]SN7426四2输入端高压输出与非缓冲器 [DATA]SN7427三3输入端或非门TI[DATA]SN7428四2输入端或非缓冲器 I[DATA]SN74308输入端与非门TI[DATA]SN7432四2输入端或门。
74ACT14MTCX,74ACT14MTC,74AC14MTCX,74AC14SCX,规格书,Datasheet 资料
In On
Description
Inputs Outputs
Function Table
Input A
L H
Output O
H L
©1988 Fairchild Semiconductor Corporation 74AC14, 74ACT14 • Rev. 1.7.2
2
IIN(3) Vt+
Maximum Input Leakage Current Maximum Positive Threshold
5.5 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5
Vt–
Minimum Negative Threshold
TA Worst Case
0.5 0.9 1.1
VH(MAX)
Maximum Hysteresis
TA Worst Case
1.2 1.4 1.6
VH(MIN)
Minimum Hysteresis
3.0 4.5 5.5
TA Worst Case
0.3 0.4 0.5
IOLD IOHD ICC
(3)
Minimum Dynamic Output Current
DC Electrical Characteristics for ACT
Symbol
VIH VIL VOH
Parameter
Minimum HIGH Level Input Voltage Maximum LOW Level Input Voltage Minimum HIGH Level Output Voltage
Symbol
VCC IIK Supply Voltage DC Input Diode Current VI –0.5V VI VCC + 1.5 VI IOK DC Input Voltage DC Output Diode Current VO –0.5V VO VCC + 0.5V VO IO DC Output Voltage
详细施密特触发器74HC14的中文资料
详细施密特触发器74HC14的中文资料74HC14为一个六反相施密特触发器真值表：Y=AInput输入output输出AYLHHL74HC14的引脚图如下，其中Vcc（14脚）是电源正电压引脚，GND（7脚）是电源地引脚，一片74HC14上共有6个反相器通道，第1、3、5、9、11、13脚分别是通道1、2、3、4、5、6的输入脚，2、4、6、8、10、12脚分别是通道1、2、3、4、5、6的输入出脚。
建议操作条件符号参数最小典型最大单位电源电压为 4.7555.25VVT，正向输入阈值电压为1.41.61.9VVT，反向输入阈值电压为0.50.81VHYS，输入滞后0.40.8-VIOHHIGH 高电平输出电流---0.4mAIOLLOW，低电平输出电流--8mATAFree ，工作温度0-70℃Note 2：VCC = 5V.电气特性超过推荐的工作自由空气温度范围（除非另有说明），符号参数条件最小典型最大单位输入钳位电压VCC 为最小，II = -18mA---1.5VVOHHIGH输出高电平电压VCC 为最小，IOH为最大VIL=最大2.73.4-VVOLLOW Level输出低电平电压VCC = 最小，IOL = 最大-0.350.5--Output V oltage输出电压VIH = 最小---VVCC = 最小，IOL = 4mA-0.250.4IT，正向阈值输入电流VCC = 5V，VI = VT+--0.14-mAIT，反向阈值输入电流VCC = 5V，VI = VT---0.18-mAII，输入电流@最大输入电压VCC = 最大，VI = 7V--0.1mAIIHHIGH ，输入高电平电流VCC = 最大，VI = 2.7V--20μAIILLOW ，输入低电平电流VCC = 最大，VI = 0.4V---0.4mAIOSShort ，短路输出电流VCC = 最大（Note 4）-20--100mAICCH，电平输出电源电流VCC = 最大-8.616mAICCL，低电平输出电源电流VCC = 最大-1221mANote 3：VCC = 5V，TA = 25℃.Note 4：一次不应超过一个输出，持续时间不应超过一秒。
74HC14在驱动电路中的作用
74HC14在驱动电路中的作用展开全文74HC14在驱动电路中的作用：小弟单片机的步进电机和继电器模块中,IO口先接了一个74HC14芯片,然后才接ULN2003驱动芯片, 请问74HC14有什么作用?hc14是coms型带施密特整形的反门！在选用反相器的时候，由于实验室没有74HC14能不能用74LS14代替？二者有什么区别？介绍详细点。
谢谢，用于通讯中要求有点严格：74LSxxxx 是Low power Schottky制程74HCxxxx 是High speed CMOS 制程两者功能是一样的, 规格上有些差异74LS 供电压 VCC 5V +/- 5% , 74HC 供电压 VCC 2.0 ~ 6.0V输入电压 High (ViH) 74LS 是 2.0V , 74HC 是3.5V输入电压 Low (ViL) 74LS 是 0.8V , 74HC 是1.5V输出电压 High (VoH) 74LS 是 2.7Vmin , 74HC 是VDD-0.1V输出电压 Low (VoL) 74LS 是 0.5V , 74HC 是0.1V静泰消耗电流 74LS 是 0.4mA , 74HC 是0.0005mA传递延迟 Tp 74LS 是 9.0ns ,74HC 是 8.0ns74LS 比较耗电, 驱动能力也比较强, 如果不考虑耗电量 , 74LS14是可以代替74HC14的.74HC04芯片的用途有哪些？能用74HC14替换吗？：74HC04：六反相器，一个起到高低电平的转换作用，还有一个就是增加信号的驱动能力，信号一般都从MCU从发出，直接驱动其他器件的能力不够，中间加一个逻辑电路来增加驱动能力。
74HC04是一个普通的非门，而74HC14是斯密特触发器，是具有滞后特性的数字传输门。
该器件既可以像普通“与非”门那样工作，也可以接成斯密特触发器来使用。
具体的斯密特触发器的含义这里解释不清楚，你可以百度搜索下。
74VHC14中文资料
1/11November 2004s HIGH SPEED: t PD = 5.5ns (TYP.) at V CC = 5V sLOW POWER DISSIPATION:I CC = 2 µA (MAX.) at T A =25°C sTYPICAL HYSTERESIS: V h = 1V at V CC = 4.5Vs POWER DOWN PROTECTION ON INPUTS sSYMMETRICAL OUTPUT IMPEDANCE:|I OH | = I OL = 8 mA (MIN)sBALANCED PROPAGATION DELAYS:t PLH ≅ t PHLsOPERATING VOLTAGE RANGE:V CC (OPR) = 2V to 5.5VsPIN AND FUNCTION COMPATIBLE WITH 74 SERIES 14s IMPROVED LATCH-UP IMMUNITY sLOW NOISE: V OLP = 0.8V (MAX.)DESCRIPTIONThe 74VHC14 is an advanced high-speed CMOS HEX SCHMITT INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS technology.The internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output.Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with noregard to the supply voltage. This device can be used to interface 5V to 3V.Pin configuration and function are the same as those of the 74VHC04 but the 74VHC14 has hysteresis.This together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals.All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.74VHC14HEX SCHMITT INVERTERFigure 1: Pin Connection And IEC Logic SymbolsTable 1: Order CodesPACKAGE T & R SOP 74VHC14MTR TSSOP74VHC14TTR74VHC142/11Figure 2: Input Equivalent CircuitTable 2: Pin DescriptionTable 3: Truth TableTable 4: Absolute Maximum RatingsAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions isnot impliedTable 5: Recommended Operating ConditionsPIN N°SYMBOL NAME AND FUNCTION 1, 3, 5, 9, 11,131A to 6A Data Inputs 2, 4, 6, 8, 10,121Y to 6Y Data Outputs 7GND Ground (0V)14V CCPositive Supply VoltageA Y L H HLSymbol ParameterValue Unit V CC Supply Voltage -0.5 to +7.0V V I DC Input Voltage -0.5 to +7.0V V O DC Output Voltage -0.5 to V CC + 0.5V I IK DC Input Diode Current - 20mA I OK DC Output Diode Current ± 20mA I ODC Output Current± 25mA I CC or I GND DC V CC or Ground Current± 50mA T stgStorage Temperature -65 to +150°C T LLead Temperature (10 sec)300°CSymbol ParameterValue Unit V CC Supply Voltage 2 to 5.5V V I Input Voltage 0 to 5.5V V O Output Voltage 0 to V CC V T opOperating Temperature-55 to 125°C74VHC143/11Table 6: DC SpecificationsTable 7: AC Electrical Characteristics (Input t r = t f = 3ns)(*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5VSymbolParameterTest ConditionValue UnitV CC (V)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.V t+High LevelThreshold Voltage 3.0 2.2 2.2 2.2V 4.5 3.15 3.15 3.155.5 3.853.853.85V t-Low LevelThreshold Voltage 3.00.90.90.9V4.5 1.35 1.35 1.355.5 1.65 1.65 1.65V hHysteresis Voltage3.00.3 1.20.3 1.20.3 1.2V4.50.4 1.40.4 1.40.4 1.45.50.5 1.60.5 1.60.5 1.6V OHHigh Level Output Voltage2.0I O =-50 µA 1.9 2.0 1.9 1.9V3.0I O =-50 µA 2.9 3.0 2.9 2.94.5I O =-50 µA 4.4 4.5 4.4 4.43.0I O =-4 mA 2.58 2.48 2.44.5I O =-8 mA 3.943.83.7V OLLow Level Output Voltage2.0I O =50 µA 0.00.10.10.1V3.0I O =50 µA 0.00.10.10.14.5I O =50 µA 0.00.10.10.13.0I O =4 mA 0.360.440.554.5I O =8 mA 0.360.440.55I I Input Leakage Current0 to 5.5V I = 5.5V or GND ± 0.1± 1± 1µA I CCQuiescent Supply Current5.5V I = V CC or GND22020µA SymbolParameterTest ConditionValueUnitV CC (V)C L (pF)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.t PLH t PHLPropagation Delay Time3.3(*)158.312.8 1.015.0 1.015.0ns 3.3(*)5010.816.3 1.018.5 1.018.55.0(**)15 5.58.6 1.010.0 1.010.05.0(**)507.010.61.012.01.012.074VHC144/11Table 8: Capacitive Characteristics1) C PD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I CC(opr) = C PD x V CC x f IN + I CC /6 (per gate)Table 9: Dynamic Switching Characteristics1) Worst case package.2) Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n-1) outputs switching and one output at GND.3) Max number of data inputs (n) switching. (n-1) switching 0V to 5.0V. Inputs under test switching: 5.0V to threshold (V ILD ), 0V to threshold (V IHD ), f=1MHz.Figure 3: Test CircuitC L =15/50pF or equivalent (includes jig and probe capacitance)R T = Z OUT of pulse generator (typically 50Ω)SymbolParameterTest ConditionValue UnitT A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.C IN Input Capacitance 6101010pF C PDPower Dissipation Capacitance (note 1)14pF SymbolParameterTest ConditionValue UnitV CC (V)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.V OLP Dynamic Low Voltage Quiet Output (note 1, 2) 5.0CL = 50 pF0.30.8V V OLV -0.8-0.3V IHD Dynamic High Voltage Input (note 1, 3) 5.0 3.5VV ILDDynamic Low Voltage Input (note 1, 3)5.0 1.5V74VHC14 Figure 4: WAVEFORM: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)5/1174VHC146/11DIM.mm.inchMIN.TYP MAX.MIN.TYP.MAX.A 1.35 1.750.0530.069 A10.10.250.0040.010 A2 1.10 1.650.0430.065 B0.330.510.0130.020 C0.190.250.0070.010 D8.558.750.3370.344 E 3.8 4.00.1500.157 e 1.270.050H 5.8 6.20.2280.244 h0.250.500.0100.020 L0.4 1.270.0160.050 k0°8°0°8°ddd0.1000.004SO-14 MECHANICAL DATA0016019D74VHC147/11DIM.mm.inchMIN.TYPMAX.MIN.TYP.MAX.A 1.20.047A10.050.150.0020.0040.006A20.81 1.050.0310.0390.041b 0.190.300.0070.012c 0.090.200.0040.0089D 4.95 5.10.1930.1970.201E 6.2 6.4 6.60.2440.2520.260E1 4.34.4 4.480.1690.1730.176e 0.65 BSC0.0256 BSCK 0˚8˚0˚8˚L0.450.600.750.0180.0240.030TSSOP14 MECHANICAL DATAcEbA2A E1D1PIN 1 IDENTIFICATIONA1LKe0080337D74VHC14Tape & Reel SO-14 MECHANICAL DATAmm.inch DIM.MIN.TYP MAX.MIN.TYP.MAX.A33012.992 C12.813.20.5040.519 D20.20.795N60 2.362T22.40.882 Ao 6.4 6.60.2520.260 Bo99.20.3540.362 Ko 2.1 2.30.0820.090 Po 3.9 4.10.1530.161 P7.98.10.3110.3198/1174VHC14 Tape & Reel TSSOP14 MECHANICAL DATAmm.inchDIM.MIN.TYP MAX.MIN.TYP.MAX.A33012.992C12.813.20.5040.519D20.20.795N60 2.362T22.40.882Ao 6.7 6.90.2640.272Bo 5.3 5.50.2090.217Ko 1.6 1.80.0630.071Po 3.9 4.10.1530.161P7.98.10.3110.3199/1174VHC14Table 10: Revision HistoryDate Revision Description of Changes 12-Nov-20046Order Codes Revision - pag. 1.10/1174VHC14 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is grantedby implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are notauthorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.The ST logo is a registered trademark of STMicroelectronicsAll other names are the property of their respective owners© 2004 STMicroelectronics - All Rights ReservedSTMicroelectronics group of companiesAustralia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America11/11。
74ls14,74hc14六反相器
三毛电子世界
推荐工作条件:
电源电压VCC
54
74
输入正向阀值电压VIT+ 输入负向阀值电压VIT－
滞后电压ΔVt
输出高电平电流IOH 输出低电平电流 54
IOL
74
最小 4.5 4.75 1.5 0.6 0.4
5414/7414 额定 5 5 1.7
0.9
0.8
单
最小 典型 最大 最小 典型 最大 位
VIK输入嵌位电压
Vcc=最小
Iik=-12mA Iik=-18mA
-1.5
VOH输出高电平电压
Vcc ＝ 最 小 VIL ＝ VIT- 54
最小 IOH＝最大
74
2.4 2.4
VOL输出低电平电压
Vcc=最小，VIH= VIT+ 54
最大，IOL=最大
74
0.4 0.4
逻辑图
双列直插封装
极限值 电源电压 …………………………………………. 7V 输入电压 54/7414…………………………………………. 5.5V 54/74LS14 ………………………………………. 7V 工作环境温度 54XXX ……………………………………………. -55~145℃ 74XXX………… ……………………………… 0~70℃ 存储温度 …………………………………………. -65~150℃
22
‘LS14 最大 22
22
单位
ns ns
三毛电子世界
最大 5.5 5.25 2 1.1
-800 16 16
54LS14/74LS14
最小
额定
最大
4.5
5
5.5
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74VHC14Hex Schmitt InverterGeneral DescriptionThe VHC14 is an advanced high speed CMOS Hex Schmitt Inverter fabricated with silicon gate CMOS technol-ogy. It achieves the high speed operation similar to equiva-lent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. Pin configuration and function are the same as the VHC04 but the inputs have hysteresis between the positive-going and negative-going input thresholds, which are capable of transforming slowly changing input signals into sharply defined, jitter-free out-put signals, thus providing greater noise margin than con-ventional inverters.An input protection circuit ensures that 0V to 7V can be applied to the input pins without regard to the supply volt-age. This device can be used to interface 5V to 3V systems and two supply systems such as battery back up. This cir-cuit prevents device destruction due to mismatched supply and input voltages.Features■High Speed: t PD= 5.5 ns (typ) at V CC= 5V■Low power dissipation: I CC= 2 μA (Max) at T A= 25°C ■High noise immunity: V NIH= V NIL= 28% V CC (Min)■Power down protection is provided on all inputs■Low noise: V OLP= 0.8V (Max)■Pin and function compatible with 74HC14Ordering Code:Order Number PackageNumberPackage Description74VHC14M(Note 1)M14A14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow74VHC14MX_NL (Note 2)M14A Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150"Narrow74VHC14SJ(Note 1)M14D Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide74VHC14MTC(Note 1)MTC1414-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide74VHC14MTC_NL (Note 3)MTC14Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,4.4mm Wide74VHC14MTCX_NL (Note 2)MTC14Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,4.4mm Wide74VHC14N(Obsolete)N14A14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" WidePb-Free package per JEDEC J-STD-020B.Note 1: Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.Note 2: “_NL” indicates Pb-Free product (per JEDEC J-STD-020B). Device is available in Tape and Reel only.Note 3: “_NL” indicates Pb-Free product (per JEDEC J-STD-020B).© 2010 Fairchild Semiconductor Corporation Logic Symbol/sIEEE/IECPin DescriptionsPin Names DescriptionA n InputsO n OutputsConnection Diagram/sTruth Table/sA OL HH L2Absolute Maximum Ratings(Note 4)Supply Voltage (V CC)−0.5V to +7.0V DC Input Voltage (V IN)−0.5V to +7.0V DC Output Voltage (V OUT)−0.5V to V CC+ 0.5V Input Diode Current (I IK)−20 mA Output Diode Current (I OK)±20 mA DC Output Current (I OUT)±25 mA DC V CC/GND Current (I CC)±50 mA Storage Temperature (T STG)−65°C to +150°C Lead Temperature (T L)Soldering (10 seconds)260°C Recommended Operating Conditions (Note 5)Supply Voltage (V CC)+2.0V to +5.5V Input Voltage (V IN)0V to +5.5V Output Voltage (V OUT)0V to V CC Operating Temperature (T OPR)−40°C to +85°C Note 4: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. The data book specifica-tions should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading vari-ables. Fairchild does not recommend operation outside databook specifica-tions.Note 5: Unused inputs must be held HIGH or LOW. They may not float.DC Electrical CharacteristicsSymbol Parameter V CCT A= 25°C T A=−40°C to +85°CUnits Conditions Min Typ Max Min MaxV P Positive Threshold Voltage 3.0 2.20 2.204.5 3.15 3.15V5.5 3.85 3.85V N Negative Threshold Voltage 3.00.900.904.5 1.35 1.35V5.5 1.65 1.65V H Hysteresis Voltage 3.00.30 1.200.30 1.204.50.40 1.400.40 1.40V5.50.50 1.600.50 1.60V OH HIGH Level Output Voltage 2.0 1.9 2.0 1.9V IN=V IL3.0 2.9 3.0 2.9V I OH=−50 μA4.5 4.4 4.5 4.43.0 2.58 2.48V I OH=−4 mA4.5 3.94 3.80I OH=−8 mA V OL LOW Level Output Voltage 2.00.00.10.1V IN= V IH3.00.00.10.1V I OL= 50 μA4.50.00.10.13.00.360.44V I OL= 4 mA4.50.360.44I OL= 8 mAI IN Input Leakage Current0–5.5±0.1±1.0μA V IN= 5.5V or GNDI CC Quiescent Supply Current 5.5 2.020.0μA V IN= V CC or GND Noise CharacteristicsSymbol Parameter V CCT A= 25°CUnits Conditions Typ LimitsV OLP (Note 6)Quiet Output Maximum Dynamic V OL5.00.40.8VC L= 50 pFV OLV (Note 6)Quiet Output Minimum Dynamic V OL5.0−0.4−0.8VC L= 50 pFV IHD (Note 6)Minimum HIGH Level Dynamic Input Voltage5.0 3.5VC L= 50 pFV ILD (Note 6)Maximum LOW Level Dynamic Input Voltage5.0 1.5VC L= 50 pFNote 6: Parameter guaranteed by design.AC Electrical CharacteristicsSymbol Parameter V CCT A= 25°C T A=−40°C to +85°CUnits Conditions Min Typ Max Min Maxt PLH Propagation Delay 3.3 ± 0.38.312.8 1.015.0ns C L= 15 pFt PHL Time10.816.3 1.018.5C L= 50 pF5.0 ± 0.5 5.58.6 1.010.0ns C L= 15 pF7.010.6 1.012.0C L= 50 pFC IN Input Capacitance41010pF V CC= OpenC PD Power Dissipation Capacitance21pF(Note 7)Note 7: C PD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: I CC (Opr) = C PD * V CC * f IN+ I CC/6 (per Gate)468。