(HD404339 Series) 4-bit HMCS400-Series microcomputer
Description
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HD404339 Series
Rev.
7.
0 Sept.
1999 Description
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 includes six chips: the HD404339 with 16-kword ROM; the HD4043312 with 12kword ROM; the HD404338 with 8-kword ROM; the HD404336 with 6-kword ROM; the HD404334 with 4-kword ROM; the HD4074339 with 16-kword PROM.
The HD4074339 is a PROM version ZTAT™ microcomputer.
Programs can be written to the PROM by a PROM writer, which can dramatically shorten system development periods and smooth the process from debugging to mass production.
(The PROM program specifications are the same as for the 27256.
) ZTAT ™: Zero Turn Around Time ZTAT is a trademark of Hitachi Ltd.
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
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HD404339 Series
• Seven interrupt sources Two by external sources Three by timers One each by the A/D converter and serial interface • Four low-power dissipation modes Standby mode Stop mode Watch mode Subactive mode • Instruction cycle time: 1 µs (fOSC = 4 MHz, 1/4 division ratio) 1/4, 1/8, 1/16, 1/32 system clock division ratio can be selected
Ordering Information
Type Mask ROM Product Name HD404334 Model Name HD404334S HD404334FS HD404336 HD404336S HD404336FS HD404338 HD404338S HD404338FS HD4043312 HD4043312S ...
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