UPD17717 Datasheet, PDF (1/408 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM

PRELIMINARY DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD17717, 17718, 17719
4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED
HARDWARE FOR DIGITAL TUNING SYSTEM
The µPD17717, 17718, and 17719 are 4-bit single-chip CMOS microcontrollers containing hardware for
digital tuning systems.
Provided with a wealth of hardware, these microcontrollers are available in many variations of ROM and RAM
capacities to support various applications.
Therefore, a high-performance, multi-function digital tuning system can be configured with only one chip.
In addition, a one-time PROM model, µPD17P719, which can be written only once and therefore is ideal for
program evaluation and small-scale production of a µPD17717, 17718, or 17719 system, is also available.
FEATURES
• Program memory (ROM)
µPD17717
: 24K bytes (12288 × 16 bits)
µPD17718, 17719: 32K bytes (16384 × 16 bits)
• General-purpose data memory (RAM)
µPD17717, 17718: 1120 × 4 bits
µPD17719
: 1776 × 4 bits
• Instruction execution time
1.78 µs (with fX = 4.5-MHz crystal oscillator)
• PLL frequency synthesizer
Dual modulus prescaler (130 MHz MAX.),
programmable divider, phase comparator, charge
pump
• Abundant peripheral hardware units
General-purpose I/O ports, serial interfaces, A/D
converter, D/A converter (PWM output), BEEP
output, frequency counter
• Many interrupts
External: 6 sources
Internal : 6 sources
• Power-ON reset, CE reset, and power failure
detection circuit
• Supply voltage: VDD = 5 V ± 10 %
ORDERING INFORMATION
Part Number
µPD17717GC-×××-3B9
µPD17718GC-×××-3B9
µPD17719GC-×××-3B9
Package
80-pin plastic QFP (14 × 14 mm, 0.65 mm pitch)
80-pin plastic QFP (14 × 14 mm, 0.65 mm pitch)
80-pin plastic QFP (14 × 14 mm, 0.65 mm pitch)
Remark ××× indicates a ROM code suffix.
Unless otherwise specified, the µPD17719 is treated as the representative model in this document.
The information in this document is subject to change without notice.
Document No. U12330EJ1V0DS00 (1st edition)
Date Published May 1997 N
Printed in Japan
©
1997