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參數(shù)資料
| 型號(hào)： | UPD7554AGA |
| 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)： | 7/64頁(yè) |
| 文件大?。?/td> | 991K |
| 代理商： | UPD7554AGA |
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7
μ
PD7554A, 7554A(A)
1.3
PIN MASK OPTION
Each pin is provided with the following mask options which can be selected for each bit according to the purpose:
Pin Name
Mask Options
P00
No internally provided resistor
Pull-up resistor internally provided
Pull-down resistor internally provided
P01
No internally provided resistor
Pull-up resistor internally provided
Pull-down resistor internally provided
P02
No internally provided resistor
Pull-up resistor internally provided
Pull-down resistor internally provided
P03
No internally provided resistor
Pull-up resistor internally provided
Pull-down resistor internally provided
P80
N-channel open-drain output
CMOS (push-pull) output
P81
N-channel open-drain output
CMOS (push-pull) output
P82
N-channel open-drain output
CMOS (push-pull) output
P83/CL2
Used as CL2 or P83N-ch open-drain output pin.
Used as P83 pin (push-pull output).
P100
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
P101
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
P102
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
P103
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
P110
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
P111
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
P112
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
P113
N-channel open-drain I/O
N-channel open-drain + I/O with pull-up resistor internally provided
Push-pull I/O
System clock
Note
RC oscillation
External clock
RESET
Pull-down resistor is not internally provided
Pull-down resistor is internally provided
Note
When using RC oscillation, switch the P83/CL2 pin to the CL2 pin.
There is no mask option for PROM products. For more information, see the
μ
PD75P54 Data Sheet (IC-2830).
#
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