UPD78P4908中文资料瑞萨数据手册PDF规格书

DESCRIPTION

The µPD78P4908, 78K/IV series product, is a one-time PROM version of the µPD784907 and µPD784908 with internal mask ROM.

Since user programs can be written to PROM, this microcomputer is best suited for evaluation in system development, manufacture of small quantities of multiple products, and fast start-up of applications.

FEATURES

• 78K/IV series

• Internal PROM: 128 Kbytes

• Internal RAM: 4,352 bytes

• Supply voltage: VDD = 4.5 to 5.5 V

(At main clock: fXX = 12.58 MHz, internal system clock = fXX: fCYK = 79 ns)

VDD = 4.0 to 5.5 V

(Other than above: fCYK = 159 ns)