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UPD17073 Datasheet(PDF) 1 Page - NEC |
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UPD17073 Datasheet(HTML) 1 Page - NEC |
1 / 226 page DESCRIPTION µPD17072 and 17073 are low-voltage 4-bit single-chip CMOS microcontrollers containing hardware ideal for organizing a digital tuning system. The CPU employs 17K architecture and can manipulate the data memory directly, perform arithmetic operations, and control peripheral hardware with a single instruction. All the instructions are 16-bit one-word instructions. As peripheral hardware, a prescaler that can operate at up to 230 MHz for a digital tuning system, a PLL frequency synthesizer, and an intermediate frequency (IF) counter are integrated in addition to I/O ports, an LCD controller/driver, A/D converter, and BEEP. Therefore, a high-performance, multi-function digital tuning system can be configured with a single chip of µPD17072 or 17073. Because the µPD17072 and 17073 can operate at low voltage (VDD = 1.8 to 3.6 V), they are ideal for controlling battery-cell driven portable devices such as portable radio equipment, headphone stereos, or radio cassette recorders. FEATURES • 17K architecture: general-purpose register system • Program memory (ROM) 6 KB (3072 × 16 bits): µPD17072 8 KB (4096 × 16 bits): µPD17073 • General-purpose data memory (RAM) 176 × 4 bits • Instruction execution time 53.3 µs (with 75-kHz crystal resonator: normal operation) 106.6 µs (with 75-kHz crystal resonator: low-speed mode) • Decimal operation • Table reference • Hardware for PLL frequency synthesizer Dual modulus prescaler (230 MHz max.), programmable divider, phase comparator, charge pump • Various peripheral hardware General-purpose I/O ports, LCD controller/driver, serial interface, A/D converter, BEEP, intermediate frequency (IF) counter • Many interrupts External: 1 channel Internal: 2 channels • Power-ON reset, CE reset, and power failure detector • CMOS low power consumption • Supply voltage: VDD = 1.8 to 3.6 V Unless otherwise stated, the µPD17073 is taken as a representative product in this document. 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM µPD17072,17073 MOS INTEGRATED CIRCUIT Document No. U11450EJ1V0DS00 (1st edition) Date Published September 1996 P Printed in Japan The information in this document is subject to change without notice. © 1996 DATA SHEET |
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