SN74ALB16245
3.3-V ALB 16-BIT TRANSCEIVER
WITH 3-STATE OUTPUTS
SCBS678C – SEPTEMBER 1996 – REVISED JANUARY 2001
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
Member of Texas Instruments’ Widebus
Family
State-of-the-Art Advanced Low-Voltage
BiCMOS (ALB) Technology Design for 3.3-V
Operation
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1DIR
1B1
1B2
GND
1B3
1B4
1OE
1A1
1A2
GND
1A3
1A4
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Schottky Diodes on All Inputs to Eliminate
Overshoot and Undershoot
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Industry Standard ’16245 Pinout
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V
V
Distributed V
High-Speed Switching Noise
and GND Pins Minimize
CC
CC
CC
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1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
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Flow-Through Architecture Optimizes PCB
Layout
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description
The SN74ALB16245 is a 16-bit transceiver
designed for high-speed, low-voltage (3.3-V) V
CC
operation. This device is intended to replace the
conventional transceiver in any speed-critical
path. The small propagation delay is achieved
using a unity-gain amplifier on the input and
feedback resistors from input to output, which
allows the output to track the input with a small
offset voltage.
V
V
CC
CC
2B5
2B6
GND
2B7
2B8
2A5
2A6
GND
2A7
2A8
2OE
This device can be used as two 8-bit transceivers
or one 16-bit transceiver. It allows data
transmission from the A bus to the B bus or from
theBbustotheAbus, dependingonthelogiclevel
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.
2DIR
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
Tube
SN74ALB16245DL
SSOP – DL
ALB16245
Tape and reel
SN74ALB16245DLR
SN74ALB16245DGGR
SN74ALB16245DGVR
–40°C to 85°C
TSSOP – DGG Tape and reel
TVSOP – DGV Tape and reel
ALB16245
AV245
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
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.
Widebus is a trademark of Texas Instruments.
Copyright 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.
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