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SN74ABTE16246DGGR
11-Bit Incident-Wave Switching Bus Transceivers With 3-State and Open-Collector Outputs
High-Drive Outputs (IOH = –60 mA,IOL = 90 mA) Support Equivalent 25-Ω
Incident-Wave Switching VCCBIAS Pin Minimizes Signal Distortion
During Live Insertion Internal Pullup Resistor on OE Keeps
Outputs in High-Impedance State During
Power Up or Power Down Distributed VCC and GND Pins Minimize
High-Speed Switching Noise Equivalent 25-Ω Series Damping Resistor
on B Port Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
description/ordering informationThe SN74ABTE16246 is an 11-bit noninverting
transceiver designed for asynchronous two-way
communication between buses. This device has
open-collector and 3-state outputs. The device
allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level
at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the
buses are effectively isolated. When OE is low, the device is active.
The B port has an equivalent 25-Ω series output resistor to reduce ringing. Active bus-hold inputs on the B port
hold unused or floating inputs at a valid logic level.
The A port provides for the precharging of the outputs via VCC BIAS, which establishes a voltage between 1.3 V
and 1.7 V when VCC is not connected.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
ORDERING INFORMATION Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
11B
GND
10BCC
8BI
8BO
GND
7BO
6BI
6BO
5BO
GND
4BO
4BICC
3BO
2BI
GND
2BO
1BO
1BI
10DIR
GND
10ACC
9DIR
GND
7BI
GND
5BICC
3BI
GND
