HD404334 - Hitachi Semiconductor

HD404334 (HD404339 Series) 4-bit HMCS400-Series microcomputer

The HD404339 Series is 4-bit HMCS400-Series microcomputer with large-capacity memory designed to increase program productivity. Each microcomputer has an A/D converter, input capture timer, and a 32kHz oscillator circuit for clock use all built in. They also come with high-voltage I/O pins that can directly drive a fluorescent display. The HD404339 Series in.

Features

• 54 I/O pins  One input-only pin  53 input/output pins: 30 pins are high-voltage pins (40 V, max.)
• On-chip A/D converter (8-bit × 12-channel)
• Three timers  One event counter input  One timer output  One input capture timer
• 8-bit clock-synchronous serial interface (1 channel)
• Alarm output
• Built-in oscillators  Ceramic or crystal oscillator  External clock drive is also possible  Subclock: 32.768-kHz crystal oscillator www.DataSheet4U.com HD404339 Series
• Seven interrupt sources  Two by external sources  Three by timers  One each by the A/D converter and serial interface.