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HD404720 - Hitachi
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Hitachi HD404720 Family
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Developer Hitachi
Manufacturer Hitachi
Type microcontrollers
ISA HD404720
Word size 4 bit
0.5 octets
1 nibbles
Technology CMOS
Clock 100 kHz-1.12 MHz
Package DIP64, CerDIP64, QFP64

The HD404720 Series was a family of 4-bit microcontrollers developed by Hitachi.

Members[edit]

Family Members
Part program ROM pattern ROM RAM I/O Ports Notes
HD404720 16,384x10-bit 8,192x10-bit 512x 4-bit + 64-digit VFD RAM 56
HD4074720 16,384x10-bit 8,192x10-bit 512x 4-bit + 64-digit VFD RAM 56 ZTAT version
HD404728 8,192x10-bit 512x 4-bit + 64-digit VFD RAM 56
HD404729 16,384x10-bit 8,192x10-bit 512x 4-bit + 64-digit VFD RAM 56
HD4074729 16,384x10-bit 8,192x10-bit 512x 4-bit + 64-digit VFD RAM 56 ZTAT verson

Design[edit]

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ISA[edit]

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Documents[edit]


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Facts about "HD404720 - Hitachi"
designerHitachi +
full page namehitachi/hd404720 +
instance ofmicrocontroller family +
instruction set architectureHD404720 +
main designerHitachi +
manufacturerHitachi +
nameHitachi HD404720 Family +
packageDIP64 +, CerDIP64 + and QFP64 +
technologyCMOS +
word size4 bit (0.5 octets, 1 nibbles) +