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HD4074459 - (HD4074458 / HD4074459) MICROCONTROLLER

Description

The HD404459 Series is a member of the 4-bit HMCS400-series microcomputers with large-capacity memory and architecture providing high program productivity.

Each microcomputer has a 32-kHz oscillator for clock, low-voltage (1.8 V) operating mode, and four low-power dissipation modes.

Features

  • 8,192-word × 10-bit ROM (HD404458) 16,384-word × 10-bit ROM (HD404459 and HD4074459).
  • 512-digit × 4-bit RAM (HD404458) 768-digit × 4-bit RAM (HD404459 and HD4074459).
  • 56 I/O pins, including seven input pins.
  • Four timer/counters.
  • 1-channel × 8-bit input capture circuit.
  • Three timer outputs (including two PWM outputs).
  • Two event counter inputs (including one double-edge function).
  • 8-bit clock-synchronous serial interface.

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HD404459 Series Description The HD404459 Series is a member of the 4-bit HMCS400-series microcomputers with large-capacity memory and architecture providing high program productivity. Each microcomputer has a 32-kHz oscillator for clock, low-voltage (1.8 V) operating mode, and four low-power dissipation modes. The HD404459 Series includes three chips: the HD404458 with an 8-kword ROM; the HD404459 with a 16-kword ROM; and the HD4074459 with a 16-kword PROM (ZTATTM version). The HD4074459 is a PROM version (ZTATTM microcomputer). A program can be written to the PROM by a PROM writer, thus dramatically shortening system development periods and turnaround time (ZTAT TM versions are 27256-compatible). ZTAT TM: Zero Turn Around Time ZTAT is a trademark of Hitachi, Ltd.
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