UPD64A Datasheet, PDF (1/64 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION

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)
: 32 × 4 bits
• Built-in carrier generation circuit for infrared remote control
• 9-bit programmable timer
: 1 channel
• Command execution time
: 16 µs (when operating at fX = 4 MHz: ceramic oscillation)
• Stack level
: 1 level (Stack RAM is for data memory RF as well.)
• I/O pins (KI/O)
: 8 units
• Input pins (KI)
: 4 units
• Sense input pin (S0, S2)
: 2 units
• S1/LED pin (I/O)
: 1 unit (When in output mode, this is the remote control transmission display
pin.)
• Power supply voltage
: VDD = 2.0 to 3.6 V
• Operating ambient temperature : TA = –40 to +85 °C
• Oscillator frequency
: fX = 2.4 to 8 MHz
• POC circuit
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