IN9151N-3 Ver la hoja de datos (PDF) - Integral Corp.

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componentes Descripción

Fabricante

IN9151N-3

PULSE DIALER

Integral Corp. 

PULSE DIALER

TECHNICAL DATA

IN9151-3

The IN9151-3 pulse dialer is a monolithic CMOS integrated circuit which

converts pushbutton inputs to a series of pulses suitable for telephone

dialing. It is intended to replace mechanical telephone dialers and can

operate directly from telephone lines. CMOS technology is used to

produced this device, resulting in very low power requirements and high

noise immunity. The IN9151-3 can be easily interfaced with a variety of

telephones, requiring only a minimal number of external components.

• Direct telephone line operation

• 4 x 3 matrix keyboard interface

• Supply voltage range of 2.0 to 5.5 volts

• Inexpensive RC oscillator

• Low power standby mode for redialing

• 22-digit redial memory

• Redial with either * or # key

• Dialer reset for line power breaks > 200 ms

• Selectable make/break ratio

• High speed test capacity

ORDERING INFORMATION

IN9151N-3 Plastic

TA = -20° to 70° C for package

PIN ASSIGNMENT

LOGIC DIAGRAM

PIN 5 = VCC

PIN 12 = GND

KEYBOARD ASSIGNMENT

R1 1 2 3

R2 4 5 6

R3 7 8 9

R4 * 0 #

C1 C2 C3

(*,# : Redial)

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