D Compatible With IEEE Std 1194.1-1991
D TTL A Port, Backplane Transceiver Logic
(BTL) B Port
D Open-Collector B-Port Outputs Sink
D BIAS VCC Pin Minimizes Signal Distortion
During Live Insertion or Withdrawal
9-BIT TTL/BTL COMPETITION TRANSCEIVER
SCBS175H – NOVEMBER 1991 – REVISED SEPTEMBER 1999
D High-Impedance State During Power Up
and Power Down
D B-Port Biasing Network Preconditions the
Connector and PC Trace to the BTL
D TTL-Input Structures Incorporate Active
Clamping Networks to Aid in Line
D Packaged in Plastic Quad Flatpack
52 51 50 49 48 47 46 45 44 43 42 41 40
14 15 16 17 18 19 20 21 22 23 24 25 26
The SN74FB2032 device is a 9-bit transceiver designed to translate signals between TTL and backplane
transceiver logic (BTL) environments and to perform bus arbitration. It is designed specifically to be compatible
with IEEE Std 1194.1-1991.
The B port operates at BTL-signal levels. The open-collector B ports are specified to sink 100 mA and have
minimum output edge rates of 2 ns. Two output enables (OEB and OEB) are provided for the B outputs. When
OEB is low, OEB is high, or VCC is less than 2.1 V, the B port is turned off.
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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.
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