18 views

UPD7566A Datasheet - NEC

UPD7566A 4-BIT SINGLE-CHIP MICROCOMPUTER

The µPD7566A is a product of the µPD7554, 7564 sub-series which is a low-end, low-cost version of the µPD7500 series microcomputers. This 4-bit single-chip microcomputer has fewer ports than the other products in the µPD7500 series, in order to reduce the package size, and is especially ideal for te.

UPD7566A Features

* 45 instructions (subset of the µPD7500H SET B)

* Instruction cycle: 2.86 microseconds (700 kHz, at 5V) with ceramic oscillator

* Program memory (ROM): 1,024 words x 8 bits

* Data memory (RAM): 64 words x 4 bits

* Test sources: 1 external and 1 internal

UPD7566A Datasheet (471.94 KB)