Description
The HD404358 Series is a 4-bit HMCS400-Series microcomputer designed to increase program productivity and also incorporate large-capacity memory. Each microcomputer has an A/D converter, input capture timer, and two low-power dissipation modes.

Features
• 34 I/O pins
    ― One input-only pin
    ― 33 input/output pins: 4 pins are intermediate-voltage NMOS open drain with high-current pins (15 mA, max.)
• On-chip A/D converter (8-bit × 8-channel)
    ― Low power voltage 2.7 V to 6.0 V
• Three timers
    ― One event counter input
    ― One timer output
    ― One input capture timer
• Eight-bit clock-synchronous serial interface (1 channel)
• Alarm output
• Built-in oscillators
    ― Ceramic oscillator or crystal
    ― External clock drive is also possible
• Seven interrupt sources
    ― Two by external sources
    ― Three by timers
    ― One by A/D converter
    ― One by serial interface
• Two low-power dissipation modes
    ― Standby mode
    ― Stop mode
• Instruction cycle time
    ― 0.47 µs (fOSC = 8.5 MHz, 1/4 division ratio): HD40A4354, HD40A4356, HD40A4358, HD407A4359
    ― 0.8 µs (fOSC = 5 MHz, 1/4 division ratio): HD404354, HD404356, HD404358