UPD17231 datasheet(3/94 Pages) RENESAS

3 / 94 page

1999

DATA SHEET

MOS INTEGRATED CIRCUIT

µPD17230,17231,17232,17233,17234,17235,17236

DESCRIPTION

µPD17230, 17231, 17232, 17233, 17234, 17235, 17236 (hereafter called µPD17236 subseries) are 4-bit single-

chip microcontrollers for small general-purpose infrared remote control transmitters.

It employs a 17K architecture of general-purpose register type devices for the CPU, and can directly execute

operations between memories instead of the conventional method of executing operations through the accumulator.

Moreover, all the instructions are 16-bit 1-word instructions which can be programmed efficiently.

In addition, a one-time PROM model,

µPD17P236Note, to which data can be written only once, is also available.

It is convenient either for evaluating the

µPD17236 subseries programs or small-scale production of application

systems.

Note

Under development

Detailed functions are described in the following manual. Be sure to read this manual when designing your

system.

µPD172×× Subseries User's Manual: U12795E

FEATURES

•

Infrared remote controller carrier generator circuit (REM output)

•

17K architecture: General-purpose register system

•

Program memory (ROM), Data memory (RAM)

µPD17230

µPD17231

µPD17232

µPD17233

µPD17234

µPD17235

µPD17236

Program

4 K bytes

8 K bytes

12 K bytes

16 K bytes

20 K bytes

24 K bytes

32 K bytes

memory (ROM) (2048

× 16)

(4096

× 16)

(6144

× 16)

(8192

× 16)

(10240

× 16) (12288 × 16) (16384 × 16)

Data memory

223

× 4 bits

(RAM)

•

8-bit timer

: 1 channel

•

Basic internal timer/Watchdog timer : 1 channel

•

Instruction execution time (can be changed in two steps)

at fX = 4 MHz

: 4

µs (high-speed mode)/8 µs (ordinary mode)

at fX = 8 MHz

: 2

µs (high-speed mode)/4 µs (ordinary mode)

•

External interrupt pin (INT)

: 1

•

I/O pins

: 21

•

Supply voltage

: VDD = 2.2 to 3.6 V (at fX = 8 MHz (high-speed mode))

VDD = 2.0 to 3.6 V (at fX = 4 MHz (high-speed mode))

•

Low-voltage detector circuit (mask option)

Unless otherwise specified, the

µPD17236 is treated as the representative model throughout this document.

Document No. U14360EJ1V0DS00 (1st edition)

Date Published July 1999 N CP (K)

Printed in Japan

4-BIT SINGLE-CHIP MICROCONTROLLER

FOR SMALL GENERAL-PURPOSE INFRARED

REMOTE CONTROL TRANSMITTER

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.

UPD17231 Datasheet(PDF) 3 Page - Renesas Technology Corp

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