TK74C3893 - Futurebus Transceiver

Features

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

The data sheet for the TK74F3893 will be available here.

The TK74F3893 can be purchased directly from Tekmos.

Volume production orders can be delivered within 12 weeks after the receipt of an accepted order. However, most orders are shipped on receipt.

Here is the pricing schedule for the TK74F3893.

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