描述 Description

The HD404318 Series is 4-bit HMCS400-series microcomputer with large-capacity memory designed to increase program productivity. Each microcomputer has an A/D converter and input capture timer built in. They also come with high-voltage I/O pins that can directly drive a fluorescent display.

特性 Features

?? 34 I/O pins
? One input-only pin
? 33 input/output pins: 21 pins are high-voltage pins (40 V, max.)
?? On-chip A/D converter (8-bit ×8-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
?? Seven interrupt sources
? Two by external sources
? Three by timers
? One each by the A/D converter and serial interface
?? Two low-power dissipation modes
? Standby mode
? Stop mode
?? Instruction cycle time 1 μs (fosc = 4 MHz)