GS –702

Flexible Remote Control (FRC) Technology ™ Transmitter

GENERAL DESCRIPTION

The GS 702 transmitter controller has been designed in order to meet the requirements of

replacement remote control makers. It’s structure is based on Application Specific Programmable

Micro-controller with a super parallel architecture implemented by means of CMOS EPROM

technology.

GS 702 replaces most of the original transmitter ICs, used nowadays. Additionally, many

parameters and functional features have been dramatically improved. A typical remote control

implementation, shown on Fig 1 uses only four external components, and power consumption

in stand-by mode is in the range of 100nA.

In order to facilitate application project design for different type of protocols, a FRC CAD system

and Chip Programmer are available. The CAD library contains more than 30 of most popular

protocols, at present, and new ones could be developed and added by the user.

GS 702 Transmitter Pin Description

Pin No

Symbol

Description

1

OSC0

Oscillator Output

2

OSC1

Oscillator Input

3-10

OUT0-OUT7

Key Outputs

11

VPP

Programming Voltage

12

GND

Ground

13

WRD

Terminal for Test and EPROM Programming

14

PGM

Terminal for Test and EPROM Programming

15-22

IN0-IN7

Key Inputs, Internally Pull Down to GND

23

REM

Remote Output

24

VCC

Positive Supply

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Supply Voltage

VCC

2.2

3.3

V

Supply Current

ICC

VCC=3V,Standby

0.1

1

uA

Output Current

IREM

VCC=2.2V

10

mA

Input Pull Down R

Rio

VCC=3V

20

kOhm

GS 702 Specific Characteristics

Key matrix:

- 64 (8 X 8) buttons.

Ceramic resonator used:

- 400 ÷550 kHz

Transmission modes:

- flash or modulated.

Programming Time:

- 3 ÷ 5 sec.

Packages available:

- DIL24, SOP24 and COB (Chip–On–Board)