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BU8307CS Datasheet - Rohm

Pulse / tone dialer

BU8307CS Features

* 1) The chip includes both a pulse and tone dialer, making it possible to dial in either pulse or tone mode. 2) A wide operating voltage range enables direct powering by line current. The voltage range guaranteed for both pulse and tone dialing is 2.5V to 5.5V. 3) A built-in memory enables redialing

BU8307CS General Description

(1) ROW1 to ROW4 and COL1 to COL4 These are the keyboard input pins. They can be connected to a 3 4 (2 of 7) standard keypad, or a 4 4 keypad. Key input becomes valid by either shorting a single ROW input and a single COL input, or setting a single ROW and a COL input to LOW at the same time. If tw.

BU8307CS Datasheet (292.96 KB)

Preview of BU8307CS PDF

Datasheet Details

Part number:

BU8307CS

Manufacturer:

ROHM ↗

File Size:

292.96 KB

Description:

Pulse / tone dialer.
Communication ICs Pulse / tone dialer for telephone set BU8307CS / BU8307CF The BU8307CS and BU8307CF are large scale integrated circuits with a puls.

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BU8307CS Pulse tone dialer Rohm

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