HD404458 Overview
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:.
HD404458 Key Features
- 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 parator (external or internal reference power supply can be selected)
- Built-in oscillators Main clock: 4-MHz ceramic or crystal oscillator (an external clock is also possible) Subclock:
- Ten interrupt sources Five by external sources, including two double-edge function Five by internal sources