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BU8307CS, BU8309K, BU8310AK

Table of contents:
Info of BU8307CS
Info of BU8309K
Info of BU8310AK

BU8307CS, BU8309K, BU8310AK Selling Leads, Datasheet

MFG:ROHM Package Cooled:DIP D/C:01+

BU8307CS, BU8309K, BU8310AK Datasheet download

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Part Number: BU8307CS

MFG: ROHM

Package Cooled: DIP

D/C: 01+

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BU8307CS General Description

The BU8307CS and BU8307CF are large scale integrated circuits with a pulse dialer and tone dialer integrated on a
single chip. These products are capable of dialing in either pulse or tone mode, and can redial up to 32 digits.

BU8307CS Features

` The chip includes both a pulse and tone dialer, making it possible to dial in either pulse or tone mode.
` 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.
` 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.
` The chip conforms to the standards of Japan, America, Canada, England, Korea, Taiwan, and Australia.
` The V_DD power supply voltage is independent of the DTMF output level.
` There is little deviation in the frequency dividing for the DTMF output frequency. The maximum on the + side is + 0.15%, and on the - side is 0.08%.

BU8307CS Typical Application

·Telephones and cordless telephones

BU8310AK General Description

The BU8310AK, BU8311KS, and BU8313K are large-scale integrated circuits for telephones, which enable a serial input
/ output interface between the key input required for telephone panel boards and LED control functions. They reduce
the number of wiring harnesses needed between the main board in the telephone and the panel board, and take some of the processing load off the main CPU.

BU8310AK Features

· Keypad matrix interface
· Key input is output as 16-bit serial data.
· Internal chattering prevention circuit built into the key input circuit.
· LED interface
· LED control commands input as 16-bit serial data.
· Bits with a pattern generator and pattern register can be assigned three independent flashing patterns in addition to being lighted or off.
· Power consumption can be reduced using RST pin input.
· LED on and off control can be initiated using ENA pin input or by commands setting all LEDs valid or invalid.

BU8310AK Typical Application

·Telephones and cordless telephones

BU8310AK Connection Diagram

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