7480 datasheet(188/337 Pages) RENESAS

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7480 Group and 7481 Group User's Manual

1-171

HARDWARE

1.20 Built-in PROM Version

Remarks

One Time PROM Version

(shipped in blank)

One Time PROM Version

One Time PROM Version (Extended

operating temperature range version)

One Time PROM Version

(shipped in blank)

One Time PROM Version

One Time PROM Version (Extended

operating temperature range version)

Built-in EPROM Version

Product

M37480E8SP

M37480E8FP

M37480E8-XXXSP

M37480E8-XXXFP

M37480E8T-XXXSP

M37480E8T-XXXFP

M37481E8SP

M37481E8FP

M37481E8-XXXSP

M37481E8-XXXFP

M37481E8T-XXXSP

M37481E8T-XXXFP

M37481E8SS

(As of September 1997)

1.20 Built-in PROM Version

A microcomputer with built-in PROM (PROM) is called a built-in programmable ROM version (built-in PROM

version), in contrast to a mask ROM version.

The 7480 Group and 7481 Group offer the following two versions of this type.

• One Time PROM version

The one time PROM are programmable only once. Erasing and reprogramming are not possible.

• Built-in EPROM version (with a transparent window)

The microcomputer has a built-in erasable PROM (EPROM) with a transparent window in top of the

package. The built-in EPROM are programmable, erasable and reprogrammable.

The built-in PROM version has the EPROM mode to program into the built-in PROM, in addition to the

operation modes of the mask ROM version.

For details, refer to Sections 1.3 Performance Overviews, 1.4 Pinouts, and 1.6 Functional Block Diagrams.

The 7480 Group and 7481 Group support the built-in PROM version products listed in Table 1.20.1.

Table 1.20.1 Supported Built-in PROM Version Products in 7480 Group and 7481 Group

PROM

(bytes)

16384

RAM

(bytes)

448

I/O Port

I/O ports: 18

Input ports: 8

(Including 4 analog

input pins.)

I/O ports: 24

Input ports: 12

(Including 8 analog

input pins.)

Package

32P4B

32P2W-A

32P4B

32P2W-A

32P4B

32P2W-A

42P4B

44P6N-A

42P4B

44P6N-A

42P4B

44P6N-A

42S1B-A

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