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參數(shù)資料
| 型號(hào)： | HT1616C |
| 廠商： | Holtek Semiconductor Inc. |
| 元件分類(lèi)： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Timer with Dialer Interface |
| 中文描述： | 定時(shí)器與撥號(hào)器接口 |
| 文件頁(yè)數(shù)： | 3/13頁(yè) |
| 文件大?。?/td> | 211K |
| 代理商： | HT1616C |
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Pad Description
Pad Name
I/O
Internal
Connection
Description
SEG1~SEG48
O
CMOS OUT
LCD segment signal output pads
COM1~COM3
O
CMOS OUT
LCD common signal output pads
HK
I
CMOS IN
Pull-high
Hook switch detector input
S1
I
CMOS IN
Pull-low
Clock setting switch
Hour or minute can be selected for S2 adjustment
RES
I
CMOS IN
Pull-high
System initialization pin, active low
The pull-high resistance is 200k
typ.
MODE
I
CMOS IN
Pull-low
4 or 5 bits pattern selection pad
VDD: 5 bits pattern
Floating: 4 bits pattern
12/24
I
CMOS IN
Pull-low
12-hour or 24-hour format option pad
VDD: 12-hour format
Floating: 24-hour format
S2
I
CMOS IN
Pull-low
Clock adjusting switch
HourorminutedigitscanbeadjusteddependingupontheS1selection
DI
I
CMOS IN
Pull-high
Serial data input pad
Data should be valid at the falling edge of SK (connected to the dialer)
SK
I
CMOS IN
Pull-high
Clock input pad (connected to the dialer), active low
Input data is latched at the falling edge of SK
T1
I
CMOS IN
Pull-high
Test pad (connected to VSS for production test)
T2
I
CMOS IN
Pull-high
Test pad (connected to VSS for production test)
X1
I
OSCILLATOR
32768Hz crystal oscillator input
X2
O
32768Hz crystal oscillator output
TIMER
I
CMOS IN
Pull-low
Timer reset-and-start/hold toggle control input pad
INT
O
NMOS OUT
Interrupt output, 16Hz (default) or 2Hz (by mask option)
VA
O
CMOS OUT
Voltage doubler, connected to the external capacitor
VB
O
CMOS OUT
Voltage doubler, connected to the external capacitor
VC
O
CMOS OUT
Voltage doubler, connected to the external capacitor
VDD
Positive power supply
VSS
Negative power supply, ground
Approximate internal connection circuits
HT1616C
Rev. 1.10
3
September 13, 2001
4 5
6 )
6
7 & $ $ 8 $ " 9
6
7 & $ $ 8
+ +
6 )
/ 4 5
0
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