7477 datasheet(284/361 Pages) RENESAS

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7470/7471/7477/7478 GROUP USER’S MANUAL

2-58

APPLICATION

2.11 Differences between 7470/7471 group and 7477/7478 group

7470

7471

7477

7478

2.11 Differences between 7470/7471 group

and 7477/7478 group

Table 2.11.1 shows differences between the 7470/7471 group and the 7477/7478 group. Exercise due

care at substitution.

Table 2.11.1 Differences between 7470/7471 group and 7477/7478 group

RAM size

ROM size

32-pin SOP

Operating temperature

range

Interrupt source types

Serial I/O

Byte specification mode

Port P2

Software pull-up control

A-D conversion VREF

OFF function

7470/7471 group

128/192/384 bytes

4K/8K/16K byte

-20 to 85°C

Clock synchronous

General I/O port / Analog input

P0, P1, P2, P4, P5

7477/7478 group

192/384 bytes

(128/192/384 bytes for extended operating temperature version)

8K/16K byte

(4K/8K/16K byte for extended operating temperature version)

-20 to 85°C

(-40°C to +85°C for

extended operating temperature version)

Clock synchronous / UART

General input port / Analog input

P0, P1, P4, P5

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