2002

DATA SHEET

4-BIT SINGLE-CHIP MICROCONTROLLER

FOR INFRARED REMOTE CONTROL TRANSMISSION

DESCRIPTION

The

µPD6P9 is a microcontroller for infrared remote control transmitters and is provided with a one-time PROM

as the program memory.

Because users can write programs for the

µPD6P9, it is ideal for program evaluation and small-scale production

of application systems that use the

µPD67, 67A, 68, 68A, 69, or 69A.

The

µPD6P9 has two types: µPD6P9M1 and 6P9M3. The differences between two types are as follows.

µPD6P9M1

µPD6P9M3

Corresponding mask ROM version

µPD67, 67A, 68, 68A, 69, 69A

µPD69A

(normal instruction execution version)

(high-speed instruction execution version)

Instruction execution time

16

µs (fX = 4 MHz)

8

µs (fX = 4 MHz)

When reading this document, also refer to the following documents.

µPD67, 67A, 68, 68A, 69 Data Sheet: U14935E

µPD69A Data Sheet:

U16363E

FEATURES

• Program memory (one-time PROM):

4074

× 10 bits

• Data memory (RAM):

128

× 4 bits

• On-chip carrier generator for infrared remote control: The high-level and low-level width can be set separately

from 250 ns to 64

µs (@ fX = 4 MHz operation) via modulo

registers

• 9-bit programmable timer:

1 channel

• Instruction execution time:

16

µs (@ fX = 4 MHz) (µPD6P9M1)

8

µs (@ fX = 4 MHz) (µPD6P9M3)

• 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 pins (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 = 2.2 to 3.6 V

• Operating ambient temperature:

TA = –40 to +85

°C

• Oscillator frequency:

fX = 3.5 to 4.5 MHz

• On-chip POC circuit and RAM retention detector

• Capacitor for oscillator: Not available

APPLICATIONS

Infrared remote control transmitters (for AV and household electric appliances)

MOS INTEGRATED CIRCUIT

µPD6P9

The mark

shows major revised points.

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 products and/or types are available in every country. Please check with an NEC Electronics

sales representative for availability and additional information.

Document No. U15144EJ1V1DS00 (1st edition)

Date Published August 2005 N CP(K)

Printed in Japan