UPD6P8 datasheet(13/95 Pages) NEC

13 / 95 page

µPD6P8, 6P8A, 6P8B

Data Sheet U17848EJ3V0DS

2. DIFFERENCES BETWEEN

µPD67A, 67B, 68A, 68B, AND µPD6P8, 6P8A, 6P8B

Table 2-1 shows the differences between the

µPD67A, 67B, 68A, 68B, and µPD6P8, 6P8A, 6P8B.

The only differences between these models are the program memory, RAM retention detection voltage, internal

oscillator, POC detection voltage, and supply voltage; the other CPU functions and internal peripheral hardware

are the same.

The electrical specifications also differ slightly. For the electrical specifications, refer to the data sheet of each

model.

Table 2-1. Differences Between

µPD67A, 67B, 68A, 68B, and µPD6P8, 6P8A, 6P8B

Item

µPD6P8

µPD6P8A

µPD6P8B

µPD67A

µPD67B

µPD68A

µPD68B

ROM

One-time PROM

Mask ROM

2026

× 10 bits

1002

× 10 bits

2026

× 10 bits

POC detection voltage

VPOC = 1.8 V

VPOC = 1.85 V

VPOC = 1.5 V

VPOC = 1.85 V

VPOC = 1.5 V

(TYP.)

RAM retention

VID = 1.8 V

VID = 1.6 V

VID = 1.4 V

VID = 1.5 V

VID = 1.4 V

VID = 1.5 V

detection voltage

(TYP.)

Internal oscillator

–

fX = 4 MHz

–

(TYP.)

Supply voltage

VDD = 1.9 to 3.6 V

VDD = 2.0 to 3.6 V

VDD = 1.65 to 3.6 V

VDD = 2.0 to 3.6 V

VDD = 1.65 to 3.6 V

Electrical specifications Some electrical specifications, such as data retention voltage and current consumption, differ.

Refer to data sheet of each model for details.

UPD6P8 Datasheet(PDF) 13 Page - NEC

UPD6P8 Datasheet(HTML) 13 Page - NEC

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