9

µPD66P04B

Data Sheet U13596EJ2V0DS00

2. DIFFERENCES BETWEEN

µPD6604 AND µPD66P04B

Table 2-1 shows the differences between the

µPD6604 and µPD66P04B.

The only differences among these models are the program memory, supply voltage, system clock frequency,

oscillation stabilization wait time, and POC circuit (mask option), and the CPU function and internal peripheral

hardware are the same.

The electrical characteristics also differ slightly. For the electrical characteristics, refer to the Data Sheet of each

model.

Table 2-1. Differences between

µPD6604 and µPD66P04B

(1) When POC circuit (mask option) is provided to

µPD6604

Item

µPD66P04B

µPD6604

ROM

One-time PROM

Mask ROM

Oscillation stabilization wait time

• On releasing STOP mode by release

condition

• On releasing STOP or HALT mode by

RESET input and at reset

Provided

Not provided

Electrical specifications

Some electrical specifications, such as data retention voltage and current

consumption, differ. For details, refer to Data Sheet of each model.

(2) When POC circuit (mask option) is not provided to

µPD6604

Item

µPD66P04B

µPD6604

ROM

One-time PROM

Mask ROM

Oscillation stabilization wait time

• On releasing STOP mode by release

condition

• On releasing STOP or HALT mode by

RESET input and at reset

Provided

Not provided

POC circuit

Incorporated

Not provided

Supply voltage

°C)

°C)

System clock frequency

Electrical specifications

Some electrical specifications, such as data retention voltage and current

consumption, differ. For details, refer to Data Sheet of each model.

Note It is necessary to design the application circuit so that the RESET pin goes low when the supply voltage

is less than 2.2 V.