HD404458 - Hitachi

HD404458 (HD4074458 / HD4074459) MICROCONTROLLER

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;.

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
• Eight wakeup inputs
• Four-channel voltage comparator (external or internal reference power supply can be selected)
• Built-in oscillators  Main clock: 4-MHz cerami.