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SN74LVT16646 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN74LVT16646
Description  3.3V ABT 16 BIT BUS TRANSCEIVERS AND REGISTERS WITH 3 STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54LVT16646, SN74LVT16646
3.3V ABT 16BIT BUS TRANSCEIVERS AND REGISTERS
WITH 3STATE OUTPUTS
SCBS149D − JULY 1994 − REVISED MARCH 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Members of the Texas Instruments
Widebus
 Family
D State-of-the-Art Advanced BiCMOS
Technology (ABT) Design for 3.3-V
Operation and Low-Static Power
Dissipation
D Support Mixed-Mode Signal Operation (5-V
Input and Output Voltages With 3.3-V VCC)
D Support Unregulated Battery Operation
Down to 2.7 V
D Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 3.3 V, TA = 25°C
D Bus-Hold Data Inputs Eliminate the Need
for External Pullup Resistors
D Ioff and Power-Up 3-State Support Hot
Insertion
D Distributed VCC and GND Pin Configuration
Minimizes High-Speed Switching Noise
D Flowthrough Architecture Optimizes
PCB Layout
D Latch-Up Performance Exceeds 500 mA
Per JEDEC Standard JESD-17
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
description/ordering information
The
’LVT16646
devices
are
16-bit
bus
transceivers
and
registers
designed
for
low-voltage (3.3-V) VCC operation, but with the
capability to provide a TTL interface to a 5-V
system environment.
These devices can be used as two 8-bit transceivers or one 16-bit transceiver. Data on the A or B bus is clocked
into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input. Figure 1
illustrates the four fundamental bus-management functions that can be performed with the
′LVT16646 devices.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP − DL
Tube
SN74LVT16646DL
LVT16646
−40
°C to 85°C
SSOP − DL
Tape and reel
SN74LVT16646DLR
LVT16646
−40 C to 85 C
TSSOP − DGG
Tape and reel
SN74LVT16646DGGR
LVT16646
−55
°C to 125°C
CFP − WD
Tube
SNJ54LVT16646WD
SNJ54LVT16646WD
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available
at www.ti.com/sc/package.
Copyright
 2004, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
Widebus is a trademark of Texas Instruments.
SN54LVT16646 . . . WD PACKAGE
SN74LVT16646 . . . DGG OR DL PACKAGE
(TOP VIEW)
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1DIR
1CLKAB
1SAB
GND
1A1
1A2
VCC
1A3
1A4
1A5
GND
1A6
1A7
1A8
2A1
2A2
2A3
GND
2A4
2A5
2A6
VCC
2A7
2A8
GND
2SAB
2CLKAB
2DIR
1OE
1CLKBA
1SBA
GND
1B1
1B2
VCC
1B3
1B4
1B5
GND
1B6
1B7
1B8
2B1
2B2
2B3
GND
2B4
2B5
2B6
VCC
2B7
2B8
GND
2SBA
2CLKBA
2OE
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.




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