PCF1172C View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

PCF1172C

3 1/2-digit LCD car clock

Philips Electronics 

Philips Semiconductors

31/2-digit LCD car clock

APPLICATION INFORMATION

Product specification

PCF1172C

battery

S6

selectable

correction mode

R = 4.7 kΩ to 8.2 kΩ

I EXT

C T = 5 pF to 25 pF 4.19 MHz

VDD

VSS

VDD TR

OSC

TS (VDD ) IN

OSC

OUT

S6

23 38 39

40

2

1

21

I REG

I DD 2 Ii

S3

2 minutes correction

S2

set minutes

S1

set hour

SHUNT

VOLTAGE

S3

REGULATOR

4

S2

18

PCF1172C

S1

3

19

20

S4

internal voltage S4

regulation

VSS

33 µF to

100 µF

(1)

segment

drivers

to LCD

MSA987

(1) Only required if internal regulation is disconnected.

From pin 2 (OSC IN) to any other pin the stray capacitance should not exceed 2 pF.

Fig.5 Typical application diagram.

1997 Apr 16

9

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