rej03b0109_4283ds| Datasheet

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4283 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

REJ03B0109-0101 Rev.1.01 2006.03.20

DESCRIPTION
The 4283 Group enables fabrication of 8 7 key matrix and has the followin timers; an 8-bit timer which can be used to set each carrier wave and has two reload register an 8-bit timer which can be used to auto-control and has a reload register.

FEATURES
Number of basic instructions ............................................. 68 Minimum instruction execution time ............................ 8.0 us (at f(XIN) = 4.0 MHz, system clock = f(XIN)/8) Supply voltage ................................................. 1.8 V to 3.6 V Subroutine nesting ..................................................... 4 levels

Timer Timer 1 ................................................................... 8-bit timer (This has a reload register and carrier wave output auto-control function) Timer 2 ................................................................... 8-bit timer (This has two reload registers and carrier wave output function) Logic operation function (XOR, OR, AND) RAM back-up function Key-on wakeup function (ports D4 D7, E0 E2, G0 G3) .... 11 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 (system reset)

APPLICATION
Various remote control transmitters

Part number M34283G2-XXXGP M34283G2GP

ROM size ( 9 bits) 2048 words 2048 words

RAM size ( 4 bits) 64 words 64 words

Package 20P2F-A 20P2F-A

ROM type QzROM QzROM (blank)

Rev.1.01 Mar 20, 2006 REJ03B0109-0101

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