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参数资料
| 型号： | S-1820CF |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP54 |
| 封装： | 1 MM PITCH, QFP-54 |
| 文件页数： | 3/9页 |
| 文件大小： | 92K |
| 代理商： | S-1820CF |
CMOS 8-bit 1-chip MICROCOMPUTER
S-1810CF/1820CF
Seiko Instruments Inc.
3
Terminal Functions
Name
I/O
Functions
VDD1 to VDD3
Positive power supply
VSS1 to VSS5
GND potential terminals
VDDR
Power supply terminal for built-in SRAM
XIN
Oscillation circuit input or external clock input terminal, used by
connecting ceramic oscillator between XOUT and XIN
XOUT
Oscillation circuit output, used by connecting ceramic oscillator
between XOUT and XIN. Open during external clock input.
RESET
Input
Reset input terminal
TEST1 to TEST2
Input
Test input terminals
VADJ1
Input
Resistor connection terminal for 1st detection voltage adjustment
VADJ2
Input
Resistor connection terminal for 2nd detection voltage adjustment
SCN0 to SCN9
Output
Scan output terminals of key matrix
SEN0 to SEN7
Input
Sense input terminals of key matrix
REN
Output
Power control terminal of remote control signal receiving circuit
RMIN
Input
Input terminal of remote control receiving signal
RMOUT
Output
Output terminal of remote control transmitting signal
ENV
Output
Output terminal of waveshaping circuit of remote control receiving
signal
CHKOUT
Output
Output terminal of amplification circuit of remote control receiving
signal
CHKIN
Input
Input terminal of waveshaping circuit of remote control receiving
signal
PA0 to PA3
I/O
I/O ports (LED drive available)
PA4 to PA7
I/O
I/O ports
PB0/SI
Input
Input port and serial data input terminal
PB1/SO
I/O
Input port and serial data output terminal
PB2/SCK
I/O
Input port and serial clock input/output terminal
PB3/EXTH
Input
Input port and external interrupt input terminal
CNHIGH
Connect to V
DD level
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