UPD66P04B Datasheet, PDF (1/32 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD66P04B
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR INFRARED REMOTE CONTROL TRANSMISSION
DESCRIPTION
The µPD66P04B is a microcontroller for infrared remote control transmitters which is provided with a one-time
PROM as the program memory.
Because users can write programs for the µPD66P04B, it is ideal for program evaluation and small-scale
production of the application systems using the µPD6604.
When reading this document, also refer to the µPD6604 Data Sheet (U11281E).
FEATURES
• Program memory (one-time PROM) : 1002 × 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 fOSC = 500 kHz: RC 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)
: 1 unit
• S1/LED pin (I/O)
: 1 unit (When in output mode, this is the remote control transmission
display pin.)
• Power supply voltage
: VDD = 2.2 to 3.6 V
• Operating ambient temperature : TA = –40 to +85 °C
• Oscillator frequency
: fOSC = 300 kHz to 1 MHz
• POC circuit
APPLICATION
Infrared remote control transmitter (for AV and household electric appliances)
Because the µPD66P04B uses an RC oscillation system clock, its accuracy and stability are lower than
the models using ceramic oscillation.
In applications where the clock accuracy and stability pose a problem, use the µPD61P34B (ceramic
oscillation type).
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. U13596EJ2V0DS00 (2nd edition)
The mark shows major revised points.
Date Published June 1999 N CP(K)
Printed in Japan
©
1998,1999