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HD404818

Hitachi
Part Number HD404818
Manufacturer Hitachi
Description (HD40L481x Series) 4-Bit Single-Chip Microcomputer
Published Dec 14, 2005
Detailed Description HD404818 Series 4-Bit Single-Chip Microcomputer Preliminary Rev. 2.0 Sept. 1998 Description T he H D4 04 81 8 Se ri es ...
Datasheet PDF File HD404818 PDF File

HD404818
HD404818

Overview
HD404818 Series 4-Bit Single-Chip Microcomputer Preliminary Rev.
2.
0 Sept.
1998 Description T he H D4 04 81 8 Se ri es of 4-bit single-chip HMCS400 series microcomputers provide high program productivity.
It incorporates a large size memory, LCD controller/driver, voltage comparator, and 32-kHz watch oscillator circuit.
The HD404818 Series has both standard voltage versions and low voltage versions available.
The standard voltage versions operate at 4.
0 V to 6.
0 V (mask ROM version) and 4.
0 V to 5.
5 V (PROM version), while the low voltage versions operate at 2.
7 V to 6.
0 V (mask ROM) and 3.
0 V to 5.
5 V (PROM).
Low voltage versions include an L in their product name.
Standard voltage versions: HD404812, HD404814, HD404816, HD404818, HD4074818 Low voltage versions: HD40L4812, HD40L4814, HD40L4816, HD40L4818, HD407L4818 ZTAT TM : Zero Turn Around Time ZTAT is a trademark of Hitachi Ltd.
w Features w w .
D at aS • • • • • • • • • • 2048-word × 10-bit ROM (HD404812, HD40L4812) 4096-word × 10-bit ROM (HD404814, HD40L4814) 6144-word × 10-bit ROM (HD404816, HD40L4816) 8192-word × 10-bit ROM (HD404818, HD40L4818, HD4074818, HD407L4818) 1184-digit × 4-bit RAM 30 I/O pins, including 10 high-current output pins, all CMOS and programmable as I/O pull-up MOS LCD controller/driver (32 segments × 4 commons) Three timer/counters Clock-synchronous 8-bit serial interface Six interrupt sources  Two by external sources  Four by internal sources he et 4U .
c om www.
DataSheet4U.
com The HD4074818 and HD407L4818, containing PROMs, are ZTAT ™ microcomputers which can dramatically shorten system development time and smoothly proceed from debugging to mass production.
HD404818 Series • Subroutine stack up to 16 levels, including interrupts • Instruction cycle time:  1 µs (fOSC = 4 MHz for HD404812/HD404814/HD404816/HD404818/HD4074818)  5 µs (fOSC = 800 kHz for HD40L4812/HD40L4814/HD40L4816/HD40L4818/HD407L4818) • Four low-power dissipation modes  Standby mode  Stop mode  W...


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