描述 Description

The HD404369 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, 32-kHz oscillator for clock, and four low-power dissipation modes.

The HD404369 Series includes nine chips: the HD404364, HD40A4364 with 4-kword ROM; the HD404368, HD40A4368 with 8-kword ROM; the HD4043612, HD40A43612 with 12-kword ROM; the HD404369, HD40A4369 with 16-kword ROM; the HD407A4369 with 16-kword PROM.

特性 Features

? 512-digit ×4-bit RAM

? 54 I/O pins

-One input-only pin

-53 input/output pins: 8 pins are intermediate-voltage NMOS open drain with high-current pins (15

mA, max.)

? On-chip A/D converter (8-bit ×12-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