pcf1174c NXP Semiconductors, pcf1174c Datasheet - Page 8

• Manufacturer Part Number: pcf1174c
• Description: 4-digit Static Lcd Car Clock
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1997 Apr 16
4-digit static LCD car clock
V PP
DATA
V DD
V DD
V DD
V DD
5 V
5 V
50 s
0 V
pulse
generators
t
t
t
MSA997
E
H
L
, t
50 s
=
= 1 to 1.5 s
clears cells
W
1 s
= 4 to 6 ms
t E
t H
DATA
V PP
V SS
Fig.6 Programming diagram.
t L
PCF1174C
t H
n
incrementing counters
t L
8
OSC IN
SEL
OSC OUT
V DD
V SS
t H
C
6.8 k
ext
R
store pulse
47 F
t W
50 s
12 V
Product specification
PCF1174C
50 s