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TK74C3893 - Futurebus Transceiver

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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

 

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.

Pin Name Type Function
1 Vcc Supply 5 Volt Supply
2 D0 Input Data 0 Input
3 R0 Output Receive Data 0 Output
4 D1 Input Data 1 Input
5 R1 Output Receive Data 1 Output
6 Logic Gnd Supply Ground for internal logic
7 D2 Input Data 2 Input
8 R2 Output Receive Data 2 Output
9 D3 Input Data 3 Input
10 R3 Output Receive Data 3 Output
11 DE Input Date Enable - 1 enables Futurebus
12 REn Input Receive Enable - 0 enables receiver
13 Bus Gnd Supply Ground for Futurebus
14 I/O 3 Bidirectional Futurebus Data 3
15 I/O 2 Bidirectional Futurebus Data 2
16 Bus Gnd Supply Ground for Futurebus
17 I/O 1 Bidirectional Futurebus Data 1
18 I/O 0 Bidirectional Futurebus Data 0
19 Bus Gnd Supply Ground for Futurebus
20 BG Gnd Supply Ground for band gap reference

 

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