M34280M1-370FP datasheet, PDF - EEWORLD Datasheet

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M34280M1-370FP: DescriptionSINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS; File Size284KB，47 Pages; ManufacturerMitsubishi; Websitehttp://www.mitsubishielectric.com/semiconductors/

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M34280M1-370FP Overview

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS

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MITSUBISHI MICROCOMPUTERS

4280 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS

DESCRIPTION

The 4280 Group is a 4-bit single-chip microcomputer designed

with CMOS technology for remote control transmitters. The 4280

Group has 7 carrier waves and enables fabrication of 8

7 key

matrix.

FEATURES

• Number of basic instructions ............................................. 62

• Minimum instruction execution time ............................ 8.0

(at f(X

) = 4.0 MHz, system clock = f(X

)/8, V

=3.0 V)

• Supply voltage ................................................. 1.8 V to 3.6 V

• Subroutine nesting ..................................................... 4 levels

• Timer

Timer 1 ................................................................... 8-bit timer

with a reload register and carrier wave output auto-control

function

ROM (PROM) size

(× 9 bits)

1024 words

• Carrier wave output function (port CARR)

f(X

), f(X

)/4, f(X

)/8, f(X

)/12

f(X

)/64, f(X

)/96, “H” output fixed

• Logic operation function (XOR, OR, AND)

• RAM back-up function

• Key-on wakeup function (ports D

, E

–E

, G

–G

) ............. 8

• I/O port (ports D, E, G, CARR) .......................................... 16

• Oscillation circuit ..................................... Ceramic resonance

• Watchdog timer

• Power-on reset circuit

• Voltage drop detection circuit ......................... Typical:1.50 V

APPLICATION

Various remote control transmitters

Product

M34280M1-XXXFP

M34280M1-XXXGP

M34280E1FP

M34280E1GP

RAM size

(× 4 bits)

32 words

Package

20P2N-A

20P2E/F-A

20P2N-A

20P2E/F-A

ROM type

Mask ROM

One Time PROM

PIN CONFIGURATION (TOP VIEW)

M34280M1-XXXFP/GP

OUT

CARR

M34280M1-XXXFP/GP

Outline 20P2N-A

20P2E/F-A

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