HD404652
HD404652 is 4-Bit Single-Chip Microcomputer manufactured by Hitachi Semiconductor.
- Part of the HD4074654 comparator family.
- Part of the HD4074654 comparator family.
Description
The HD404654 Series is a member of the HMCS400-series of microputers designed to increase program productivity with large-capacity memory. Each microputer has a high-precision dual-tone multi-frequency (DTMF) generator, three timers, serial interface, voltage parator, and input capture circuit.
The HD404654 Series includes three chips: the HD404652 with 2 k-word ROM; the HD404654 with 4 kword ROM; and the HD4074654 with 4 k-word PROM (ZTAT™ version).
The HD4074654 is a PROM version (ZTAT™ microputer). A program 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 ZTAT™ version is 27256-patible.)
ZTAT™ : Zero Turn Around Time. ZTAT is a trademark of Hitachi Ltd.
Features
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- 27 I/O pins and 5 dedicated input pins 10 high-current output pins: Six 15-m...
