TK74C3893数据手册Tekmos中文资料规格书

描述 Description

The TK74C3893 is a replacement for the Philips N74F3893A and NSC DS3893A Quad Futurebus transceivers.

The TK74C3893 consists of 4 bidirectional Futurebus transceivers. Directional control is provided through a receive enable and data bus enable pins.

PinNameTypeFunction1VccSupply5 Volt Supply2D0InputData 0 Input3R0OutputReceive Data 0 Output4D1InputData 1 Input5R1OutputReceive Data 1 Output6Logic GndSupplyGround for internal logic7D2InputData 2 Input8R2OutputReceive Data 2 Output9D3InputData 3 Input10R3OutputReceive Data 3 Output11DEInputDate Enable - 1 enables Futurebus12REnInputReceive Enable - 0 enables receiver13Bus GndSupplyGround for Futurebus14I/O 3BidirectionalFuturebus Data 315I/O 2BidirectionalFuturebus Data 216Bus GndSupplyGround for Futurebus17I/O 1BidirectionalFuturebus Data 118I/O 0BidirectionalFuturebus Data 019Bus GndSupplyGround for Futurebus20BG GndSupplyGround for band gap reference  

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特性 Features

• Quad backplane transceiver
• Replaces Philips N74F3893A and NSC DS3893A Drivers
• Drives heavily loaded backplanes
• Futurebus drivers sink 100 mA
• Built in band gap reference
• Glitch-free power-up and power-down on all outputs
• CMOS technology for low power
• Available in 20 pin PLCC
• RoHS Compliant
 DescriptionThe TK74C3893 is a replacement for the Philips N74F3893A and NSC DS3893A Quad Futurebus transceivers.The TK74C3893 consists of 4 bidirectional Futurebus transceivers. Directional control is provided through a receive enable and data bus enable pins.PinNameTypeFunction1VccSupply5 Volt Supply2D0InputData 0 Input3R0OutputReceive Data 0 Output4D1InputData 1 Input5R1OutputReceive Data 1 Output6Logic GndSupplyGround for internal logic7D2InputData 2 Input8R2OutputReceive Data 2 Output9D3InputData 3 Input10R3OutputReceive Data 3 Output11DEInputDate Enable - 1 enables Futurebus12REnInputReceive Enable - 0 enables receiver13Bus GndSupplyGround for Futurebus14I/O 3BidirectionalFuturebus Data 315I/O 2BidirectionalFuturebus Data 216Bus GndSupplyGround for Futurebus17I/O 1BidirectionalFuturebus Data 118I/O 0BidirectionalFuturebus Data 019Bus GndSupplyGround for Futurebus20BG GndSupplyGround for band gap reference