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FB2033K Datasheet

  • FB2033K

  • 8-BIT TTL/BTL REGISTERED TRANSCEIVER

  • 14頁

  • TI

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SN74FB2033K
8-BIT TTL/BTL REGISTERED TRANSCEIVER
SCBS472G 鈥?MAY 1994 鈥?REVISED SEPTEMBER 2001
D
D
D
D
Compatible With IEEE Std 1194.1-1991
(BTL)
TTL A Port, Backplane Transceiver Logic
(BTL) B Port
Open-Collector B-Port Outputs Sink
100 mA
BIAS V
CC
Pin Minimizes Signal Distortion
During Live Insertion/Withdrawal
D
D
D
High-Impedance State During Power Up
and Power Down
B-Port Biasing Network Preconditions the
Connector and PC Trace to the BTL
High-Level Voltage
TTL-Input Structures Incorporate Active
Clamping Networks to Aid in Line
Termination
RC PACKAGE
(TOP VIEW)
GND
AO2
AI3
AO3
AI4
AO4
LOOPBACK
AI5
AO5
AI6
AO6
AI7
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15 16 17 18 19 20 21 22 23 24 25 26
AI2
AO1
AI1
GND
V
CC
CLKAB/LEAB
IMODE1
IMODE0
BG V
CC
OEA
BG GND
BIAS V
CC
B1
52 51 50 49 48 47 46 45 44 43 42 41 40
39
38
37
36
35
34
33
32
31
30
29
28
27
GND
B2
GND
B3
GND
B4
GND
B5
GND
B6
GND
B7
GND
AO7
AI8
AO8
GND
V
CC
CLKBA/LEBA
OMODE0
OMODE1
V
CC
description
The SN74FB2033K is an 8-bit transceiver featuring a split input (AI) and output (AO) bus on the TTL-level A port.
The common I/O, open-collector B port operates at backplane transceiver logic (BTL) signal levels. The
SN74FB2033K is specifically designed to be compatible with IEEE Std 1194.1-1991.
The logic element for data flow in each direction is configured by two mode inputs (IMODE1 and IMODE0 for
B-to-A, OMODE1 and OMODE0 for A-to-B) as a buffer, a D-type flip-flop, or a D-type latch. When configured
in the buffer mode, the inverted input data appears at the output port. In the flip-flop mode, data is stored on
the rising edge of the appropriate clock input (CLKAB/LEAB or CLKBA/LEBA). In the latch mode, the clock
inputs serve as active-high transparent latch enables.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
錚?/div>
2001, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
OEB
OEB
GND
B8
1

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