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HD4074458 Datasheet (hd4074458 / Hd4074459) Microcontroller

Manufacturer: Hitachi Semiconductor (now Renesas)

Overview: HD404459 Series.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

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

Each microputer 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;

Key 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.

HD4074458 Distributor