UPD17704 Datasheet, PDF (1/356 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM

DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD17704, 17705, 17707, 17708, 17709
4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED
HARDWARE FOR DIGITAL TUNING SYSTEM
The µPD17704, 17705, 17707, 17708, and 17709 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, µPD17P709, which can be written only once and therefore is ideal for
program evaluation and small-scale production of a µPD17704, 17705, 17707, 17708, or 17709 system, is also
available.
FEATURES
Program memory (ROM)
General Purpose data
memory (RAM)
µPD17704
µPD17705
µPD17707
16K bytes
24K bytes
(8192 × 16 bits) (12288 × 16 bits)
672 × 4 bits
1120 × 4 bits
µPD17708
µPD17709
32K bytes
(16384 × 16 bits)
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 %
Unless otherwise specified, the µPD17709 is treated as the representative model in this document.
The information in this document is subject to change without notice.
Document No. U11624EJ2V0DS00 (2nd edition)
Date Published December 1996 N
The mark shows major revised points.
Printed in Japan
©
1996