
1998,1999
DATA SHEET
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR INFRARED REMOTE CONTROL TRANSMISSION
DESCRIPTION
The
μ
PD66P04B 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
μ
PD66P04B, it is ideal for program evaluation and small-scale
production of the application systems using the
μ
PD6604.
When reading this document, also refer to the
μ
PD6604 Data Sheet (U11281E).
FEATURES
Program memory (one-time PROM) : 1002
×
10 bits
Data memory (RAM)
Built-in carrier generation circuit for infrared remote control
9-bit programmable timer
Command execution time
Stack level
I/O pins (K
I/O
)
Input pins (K
I
)
Sense input pin (S
0
)
S
1
/LED pin (I/O)
: 32
×
4 bits
: 1 channel
: 16
μ
s (when operating at f
OSC
= 500 kHz: RC oscillation)
: 1 level (Stack RAM is for data memory RF as well.)
: 8 units
: 4 units
: 1 unit
: 1 unit (When in output mode, this is the remote control transmission
display pin.)
: V
DD
= 2.2 to 3.6 V
: T
A
= –40 to +85
°
C
: f
OSC
= 300 kHz to 1 MHz
Power supply voltage
Operating ambient temperature
Oscillator frequency
POC circuit
APPLICATION
Infrared remote control transmitter (for AV and household electric appliances)
Because the
μ
PD66P04B 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
μ
PD61P34B (ceramic
oscillation type).
MOS INTEGRATED CIRCUIT
μ
PD66P04B
Document No. U13596EJ2V0DS00 (2nd edition)
Date Published June 1999 N CP(K)
Printed in Japan
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.
The mark
shows major revised points.