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UPD64A Dataheets PDF



Part Number UPD64A
Manufacturers NEC
Logo NEC
Description 4-BIT SINGLE-CHIP MICROCONTROLLER
Datasheet UPD64A DatasheetUPD64A Datasheet (PDF)

DATA SHEET MOS INTEGRATED CIRCUIT µPD64A, 65 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION DESCRIPTION Equipped with low-voltage 2.0 V operation, a carrier generation circuit for infrared remote control transmission, a standby release function through key entry, and a programmable timer, the µPD64A and 65 are suitable for infrared remote control transmitters. For the µPD64A and 65, we have made available the one-time PROM product µPD6P5 (under development) for pr.

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DATA SHEET MOS INTEGRATED CIRCUIT µPD64A, 65 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION DESCRIPTION Equipped with low-voltage 2.0 V operation, a carrier generation circuit for infrared remote control transmission, a standby release function through key entry, and a programmable timer, the µPD64A and 65 are suitable for infrared remote control transmitters. For the µPD64A and 65, we have made available the one-time PROM product µPD6P5 (under development) for program evaluation or small-quantity production. FEATURES • Program memory (ROM) • µPD64A : 1002 × 10 bits • µPD65 : 2026 × 10 bits • Data memory (RAM) • 9-bit programmable timer • Command execution time • Stack level • I/O pins (KI/O) • Input pins (KI) • Sense input pin (S0, S2) • S1/LED pin (I/O) • Power supply voltage • Oscillator frequency • POC circuit : 32 × 4 bits : 1 channel : 16 µs (when operating at fX = 4 MHz: ceramic oscillation) : 1 level (Stack RAM is for data memory RF as well.) : 8 units : 4 units : 2 units : 1 unit (When in output mode, this is the remote control transmission display pin.) : VDD = 2.0 to 3.6 V : fX = 2.4 to 8 MHz • Operating ambient temperature : TA = –40 to +85 °C • Built-in carrier generation circuit for infrared remote control APPLICATION Infrared remote control transmitter (for AV and household electric appliances) Unless otherwise specified, the µPD65 is treated as the representative model throughout this document. The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. U14380EJ2V0DS00 (2nd edition) Date Published November 1999 N CP(K) Printed in Japan The mark shows major revised points. © 1999 µPD64A, 65 ORDERING INFORMATION Part Number Package 20-pin plastic SSOP (300 mil) 20-pin plastic SSOP (300 mil) µPD64AMC-×××-5A4 µPD65MC-××× -5A4 Remark ××× indicates ROM code suffix. PIN CONFIGURATION (TOP VIEW) 20-pin Plastic SSOP (300 mil) • µPD64AMC-×××-5A4 • µPD65MC-××× -5A4 KI/O6 KI/O7 S0 S1/LED REM VDD XOUT XIN GND S2 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 KI/O5 KI/O4 KI/O3 KI/O2 KI/O1 KI/O0 KI3 KI2 KI1 KI0 Caution The pin numbers of KI and KI/O are in the reverse order of the µPD6600A, and 6124A. 2 Data Sheet U14380EJ2V0DS00 µPD64A, 65 BLOCK DIAGRAM REM CARRIER GENERATOR 4 CPU CORE ROM 8 PORT KI 4 KI0-KI3 PORT KI/O 8 KI/O0-KI/O7 S1/LED 9-bit TIMER 3 PORT S 3 S0, S1/LED, S2 RAM SYSTEM CONTROL XIN XOUT VDD GND LIST OF FUNCTIONS Item ROM capacity µPD64A 1002 × 10 bits Mask ROM 32 × 4 bits 1 level (multiplexed with RF of RAM) • • • • µPD65 2026 × 10 bits µPD6P5 One-time PROM RAM capacity Stack I/O pins Key input (KI) Key I/O (KI/O) Key extended input (S0, S1, S2) Remote control transmission display output (LED) : : : : 4 8 3 1 (multiplexed with S1 pin) Number of keys Clock frequency Instruction execution time Carrier frequency Timer POC circuit Supply voltage Operating ambient temperature Package • 32 keys • 56 keys (when extended by key extension input) Ceramic oscillation • fX = 2.4 to 8 MHz 16 µs (fX = 4 MHz) fX/8, fX/16, fX/64, fX/96, fX/128, fX/192, no carrier (high level) 9-bit programmable timer: 1 channel Internal VDD = 2.0 to 3.6 V T A = –40 to +85 °C 20-pin plastic SSOP (300 mil) Ceramic oscillation • fX = 2.4 to 5.6 MHz Data Sheet U14380EJ2V0DS00 3 µPD64A, 65 CONTENTS 1. PIN FUNCTIONS ............................................................................................................................... 1.1 1.2 1.3 List of Pin Functions ............................................................................................................................... INPUT/OUTPUT Circuits of Pins ............................................................................................................ Dealing with Unused Pins ...................................................................................................................... 6 6 7 8 2. INTERNAL CPU FUNCTIONS .......................................................................................................... 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 Program Counter (PC) ............................................................................................................................ Stack Pointer (SP) ................................................................................................................................... Address Stack Register (ASR (RF)) ....................................................................................................... 9 9 9 9 Program Memory (ROM) ......................................................................................................................... 10 Data Memory (RAM) ...........................................................


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