參數(shù)資料
型號(hào): UPD75108A
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 12/66頁(yè)
文件大?。?/td> 460K
代理商: UPD75108A
μ
PD75104A, 75108A
12
3.4
RECOMMENDED PROCESSING OF UNUSED PINS
Pin
Recommended connections
PTH00-PTH03
TI0
Connect to V
SS
or V
DD
TI1
P00
Connect to V
SS
P01-P03
Connect to V
SS
or V
DD
P10-P13
Connect to V
DD
when a pull-up resistor is provided.
Connect to VSS when a pull-up resistor is not provided.
P20-P23
Input: Connect to V
SS
P30-P33
Output: Open
P40-P43
P50-P53
When a pull-up resistor is provided:
P60-P63
Input: Connect to V
DD
P70-P73
Output: Open
P80-P83
When a pull-up resistor is not provided:
P90-P93
Input: Connect to V
SS
or V
DD
P120-P123
Output: Open
P130-P133
P140-P143
RESET
Connect to V
DD
*
NC
Open or connect to V
DD
*: Connect this pin to the V
DD
pin only when a power-ON reset circuit
is provided as a mask option.
相關(guān)PDF資料
PDF描述
UPD75108AGC 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD75104 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD75104CW 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD75104GF 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD75106 4-BIT SINGLE-CHIP MICROCOMPUTER
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