BU8307CF - Pulse / tone dialer

Product Overview

Rohm

Part number	BU8307CF
Manufacturer	ROHM
File Size	292.96 KB
Description	Pulse / tone dialer
Datasheet	BU8307CF Datasheet
Additional preview pages of the BU8307CF datasheet.

(1) ROW1 to ROW4 and COL1 to COL4 These are the keyboard input pins.

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 of up to 32 digits. Note: In tone mode, the memory itself uses one digit, so please be aware that a maximum of 31 digits can be redialed. 4) The chip conforms to the standards of Japan, AmeriFBlock di.

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Published: Apr 17, 2005 |