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參數(shù)資料
| 型號： | PCF1171C |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 4-digit LCD car clock(4數(shù)字LCD汽車時鐘) |
| 中文描述： | 4位LCD汽車時鐘（4數(shù)字液晶汽車時鐘） |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 112K |
| 代理商： | PCF1171C |
1997 Apr 16
4
Philips Semiconductors
Product specification
4-digit LCD car clock
PCF1171C
Fig.2 Segment designation of LCD.
MSA984
A1
G1
D1
F1
E1
B1
C1
A2
G2
D2
F2
E2
B2
C2
P1 (P3)
P2 (P4)
A3
G3
D3
F3
E3
B3
C3
A4
G4
D4
F4
E4
B4
C4
Fig.3 Display mode (24-hour mode shown).
MSA985
TIME
OPERATIONAL INPUTS
Operational inputs S1, S2 and S3 have an internal pull-up
resistor to facilitate use of external single-pole,
single-throw switches. A specific debounce circuit is
integrated as protection against contact debounce and
parasitic voltages.
In the description below, an arrangement as shown in
Fig.5 is assumed and S1, S2 and S3 refer to the external
switches rather than the corresponding inputs.
Set hours, switch S1
Closure of S1 increments the hours according to the
correction mode selected by S6 (see Chapter
“Input options”).
Set minutes/reset seconds, switch S2
When S2 is closed, the minute setting is corrected
according to the correction mode determined by S6 (see
Chapter “Input options”).
The seconds counter is reset to zero each time S2 is
closed, and begins running each time S2 is opened.
Segment test/reset, switches S1 and S2
If S1 and S2 are closed simultaneously all LCD segments
are switched on. When the switches are released, the
clock starts at 1 : 00 in the 12-hour mode or 0 : 00 in the
24-hour mode.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCF1171CT | 4-digit LCD car clock |
| PCF1171CU | 4-digit LCD car clock |
| PCF1172C | 3 1 /2 -digit LCD car clock(3 1 /2 數(shù)字 LCD汽車時鐘) |
| PCF1172CT | 31/2-digit LCD car clock |
| PCF1172CU | 31/2-digit LCD car clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCF1171CT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-digit LCD car clock |
| PCF1171CU | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-digit LCD car clock |
| PCF1172C | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:31/2-digit LCD car clock |
| PCF1172CT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:31/2-digit LCD car clock |
| PCF1172CU | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:31/2-digit LCD car clock |
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