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BU8874F-E2

IC DTMF RCVR FOR PHONE SOP18 TR

Product Category: Telecom Interface ICs
Mfr. Part #
BU8874F-E2
Manufacturer: ROHM Semiconductor
Package: 18-SOIC (0.213", 5.40mm Width)
Lead Free Status /RoHS Status:
Data Sheet: BU8874F-E2 Datasheet
Inventory: In Stock

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Mfr. Part #: BU8874F-E2

Specifications
Product Details

Specifications

Manufacturer Rohm Semiconductor

Product Category Telecom Interface ICs

Series -

Product DTMF - Dual-tone Multi-frequency Receivers

Packaging Alternate Packaging

Mounting-Style SMD/SMT

Package-Case 18-SOIC (0.213", 5.40mm Width)

Operating-Temperature -10Â°C ~ 70Â°C

Mounting-Type Surface Mount

Function Receiver, DTMF

Interface -

Voltage-Supply 4.75 V ~ 5.25 V

Supplier-Device-Package 18-SOP

Number-of-Circuits 1 Circuit

Watt 550mW

Current-Supply 2.2mA

Pd-Power-Dissipation 500 mW

Maximum Operating Temperature + 70 C

Operating temperature range - 10 C

Operating-Supply-Voltage 5 V

Operating-Supply-Current 2.2 mA

Supply-Voltage-Max 5.25 V

Supply-Voltage-Min 4.75 V

Package-Case SOP-18

Product Details

The BU8874 and BU8874F are DTMF receiver ICs developed for use in telephone answering machines, and convert 16 different types of DTMF signals into 4-bit binary serial data. In addition to a compact 8-pin DIP (BU8874) package,these receivers feature a wide dynamic range, eliminating the need for an external input amplifier. Expertise from a number of companies has been incorporated into these products to enable guard time control through a host microcontroller.

Features

1) Dynamic range of 45dB. (internal AGC)
2) Power down mode.
3) 4-bit binary serial data output.
4) Guard time can be controlled through host microcontroller.
5) Input pins equipped with hysteresis. (ACK pin)
6) 4.19MHz crystal resonator can be used.
7) 8-pin DIP package. (BU8874)

Applications

Telephone answering machines

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Mfr. Part #: BU8874F-E2