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| PCF1171C Datasheet, PDF (3/16 Pages) NXP Semiconductors – 4-digit LCD car clock | |||
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Philips Semiconductors
4-digit LCD car clock
PINNING
SYMBOL
OSC OUT
OSC IN
S1
S3
BP
ADEG1
C1
E2
D2
C2
E3
D3
C3
E4
D4
C4
B4
S2
S4
VSS
S6
S5
VDD
A4
F4
G4
B3
A3
F3
G3
P1, P2
P3, P4
B2
A2
F2
G2
B1
PIN
DESCRIPTION
1 oscillator output
2 oscillator input
3 set hour
4 ±2 minute correction
5 64 Hz backplane driver
(common of LCD)
6 segment driver
7 segment driver
8 segment driver
9 segment driver
10 segment driver
11 segment driver
12 segment driver
13 segment driver
14 segment driver
15 segment driver
16 segment driver
17 segment driver
18 set minutes
19 internal voltage regulation
20 negative supply
21 selectable correction mode
22 12/24-hour mode
23 positive supply
24 segment driver
25 segment driver
26 segment driver
27 segment driver
28 segment driver
29 segment driver
30 segment driver
31 colon ï¬ashing
32 colon static
33 segment driver
34 segment driver
35 segment driver
36 segment driver
37 segment driver
Product speciï¬cation
PCF1171C
SYMBOL PIN
DESCRIPTION
TR
TS
(VDD)
38 test reset; connect to (VDD)
39 test speed-up; connect to (VDD)
40 positive supply for test and oscillator
inputs
OSC OUT 1
40 (V DD)
OSC IN 2
39 TS
S1 3
38 TR
S3 4
37 B1
BP 5
36 G2
ADEG1 6
35 F2
C1 7
34 A2
E2 8
33 B2
D2 9
32 P3, P4
C2 10
31 P1, P2
PCF1171CT
E3 11
30 G3
D3 12
29 F3
C3 13
28 A3
E4 14
27 B3
D4 15
26 G4
C4 16
25 F4
B4 17
S2 18
24 A4
23 VDD
S4 19
VSS 20
22 S5
21 S6
MSA981
Fig.1 Pin configuration, PCF1171CT, (VSO40).
1997 Apr 16
3
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