UPD7554AA データシートの表示（PDF） - NEC => Renesas Technology

部品番号

コンポーネント説明

メーカー

UPD7554AA

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD7554A, 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

5

P00

ΠNo internally provided resistor

Ž Pull-up resistor internally provided

 Pull-down resistor internally provided

P01

ΠNo internally provided resistor

Ž Pull-up resistor internally provided

 Pull-down resistor internally provided

P02

ΠNo internally provided resistor

Ž Pull-up resistor internally provided

 Pull-down resistor internally provided

P03

ΠNo internally provided resistor

Ž Pull-up resistor internally provided

 Pull-down resistor internally provided

P80

ΠN-channel open-drain output

 CMOS (push-pull) output

P81

ΠN-channel open-drain output

 CMOS (push-pull) output

P82

ΠN-channel open-drain output

 CMOS (push-pull) output

P83/CL2

Œ Used as CL2 or P83N-ch open-drain output pin.  Used as P83 pin (push-pull output).

P100

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

P101

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

P102

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

P103

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

P110

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

P111

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

P112

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

P113

ΠN-channel open-drain I/O

 Push-pull I/O

Ž N-channel open-drain + I/O with pull-up resistor internally provided

System clockNote ΠRC oscillation

 External clock

RESET

ΠPull-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 µPD75P54 Data Sheet (IC-2830).

7

Share Link: