RTC-62421A;RTC-62421B;RTC-62423A3;RTC-62421AROHS;RTC-62421BROHS;中文规格书,Datasheet资料

Actual size Real time clock module

Epson Toyocom

Block diagram

Terminal connection/External dimensions

(Unit:mm)

RTC-62421

RTC-62423

OS C

RE SE T

bit

S TOP bit

30 sec A DJ

bit

Counter

HOLD bit

BUS Y bit

D W R RD

A CS 0

ALE CS 1

S 1

S10M I1M I10H1H10W

D1

D10

M O1M O10

Y1

Y10

64 Hz

1 Second carry 1 M inute carry S1 to CF

CD

CE

CF

Gate

Gate

Latch

Decoder

24/12bit

STD.P

Output Selector

V DD

3D 2D 1D

03 A 2A 1A 0 1 Hour carry

RTC-62421 (DIP 18-pin)

23.1 Max.

3

#18 #10

RTC62421 A RTC-62423 (SOP 24-pin)

16.3 Max.

#24

#13

No.

Pin terminal No. Pin

terminal 1 STD.P 18 V DD

2 /CS 0 17 (V DD )

3 ALE 16 (V DD )

4 A 0 1

5 CS 1

No.

Pin terminal No. Pin terminal 1 STD.P 24 V DD 2 /CS 0 23 (V DD ) 3 N.C. 22 (V DD ) 4 ALE 21 N.C. 5 A 20 CS

4-bit REAL TIME CLOCK MODULE

RTC - 62421 RTC - 62423

?Built-in crystal unit allows adjustment-free efficient operation. ?24 h /12 h changeable and leap year automatically adjustable (Gregorian calendar).

?Pins and functions are compatible with the MSM6242 series.

Product Number (Please contact us) RTC-62421 : Q42624211xxxx00 RTC-62423 : Q42624231xxxx00

https://www.360docs.net/doc/d57115810.html,/

分销商库存信息:

EPSON

RTC-62421A RTC-62421B RTC-62423A:3

RTC-62421A:ROHS RTC-62421B:ROHS RTC-62423A:3:ROHS