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M34280E1GP - SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

General 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.

Key Features

  • Number of basic instructions 62.
  • Minimum instruction execution time 8.0 µs (at f(XIN) = 4.0 MHz, system clock = f(XIN)/8, VDD=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.
  • Carrier wave output function (port CARR) f(XIN), f(XIN)/4, f(XIN)/8, f(XIN)/12 f(XIN)/64, f(XIN)/96, “H” output fixed.
  • Logic operation funct.

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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 µs (at f(XIN) = 4.0 MHz, system clock = f(XIN)/8, VDD=3.0 V) • Supply voltage ................................................. 1.8 V to 3.6 V • Subroutine nesting ..................................................... 4 levels • Timer Timer 1 ...................................................................