UPD17P719 Datasheet | NEC

DATA SHEET MOS INTEGRATED CIRCUIT µPD17P719 4-BIT SINGLE-CHIP MICROCONTROLLER WITH BUILT-IN HARDWARE DEDICATED TO DIGITAL TUNING SYSTEMS The µPD17P719 is produced by replacing the built-in masked ROM of the µPD17717, µPD17718, and µPD17719 with a one-time PROM. The µPD17P719 allows programs to be written once, so that the µPD17P719 is suitable for preproduction in µPD17717, µPD17718, or µPD17719 system development or low-volume production. When reading this document, also refer to the publications on the µPD17717, µPD17718, or µPD17719. The electrical characteristics (including power supply currents) and PLL analog characteristics of the µPD17P719 differ from those of the µPD17717, µPD17718, and µPD17719. In high-volume application set production, carefully check those differences. Features - - - patible with the µPD17717, µPD17718, and µPD17719 Built-in one-time PROM Supply voltage : 32K bytes (16384 × 16 bits) : PLL operation : VDD = 4.5 to 5.5 V CPU operation : VDD = 3.5 to 5.5 V ORDERING INFORMATION Part number Package 80-pin plastic QFP (14 × 14 mm, 0.65-mm pitch) µPD17P719GC-3B9 The information in this document is subject to change without notice. Document No. U12112EJ1V0DS00 (1st edition) Date Published February 1997 J Printed in Japan © µPD17P719 FUNCTION OVERVIEW Item Product (1/2) µPD17717 µPD17718 16384 × 16 bits (masked ROM) 1776 × 4 bits µPD17719 µPD17P719 16384 × 16 bits (one-time PROM) Program memory (ROM) 12288 × 16 bits (masked ROM) 1120 × 4 bits General-purpose data memory (RAM) Instruction execution time 1.78 µs (with f X = 4.5-MHz crystal) General-purpose ports - I/O ports :...