SN74LVT16646 Datasheet, PDF (1/12 Pages) Texas Instruments – 3.3V ABT 16 BIT BUS TRANSCEIVERS AND REGISTERS WITH 3 STATE OUTPUTS

SN54LVT16646, SN74LVT16646
3.3ĆV ABT 16ĆBIT BUS TRANSCEIVERS AND REGISTERS
WITH 3ĆSTATE OUTPUTS
SCBS149D − JULY 1994 − REVISED MARCH 2004
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 V_CC )
D Support Unregulated Battery Operation
Down to 2.7 V
D Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 3.3 V, T_A = 25°C
D Bus-Hold Data Inputs Eliminate the Need
for External Pullup Resistors
D I_off and Power-Up 3-State Support Hot
Insertion
D Distributed V_CC 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) V_CC operation, but with the
capability to provide a TTL interface to a 5-V
system environment.
SN54LVT16646 . . . WD PACKAGE
SN74LVT16646 . . . DGG OR DL PACKAGE
(TOP VIEW)
1DIR 1
1CLKAB 2
1SAB 3
GND 4
1A1 5
1A2 6
V_CC 7
1A3 8
1A4 9
1A5 10
GND 11
1A6 12
1A7 13
1A8 14
2A1 15
2A2 16
2A3 17
GND 18
2A4 19
2A5 20
2A6 21
V_CC 22
2A7 ²³
2A8 ²⁴
GND ²⁵
2SAB ²⁶
2CLKAB ²⁷
2DIR ²⁸
56 1OE
55 1CLKBA
54 1SBA
53 GND
52 1B1
51 1B2
50 V_CC
49 1B3
48 1B4
47 1B5
46 GND
45 1B6
44 1B7
43 1B8
42 2B1
41 2B2
40 2B3
39 GND
38 2B4
37 2B5
36 2B6
35 V_CC
34 _2B7
33 _2B8
32 _GND
31 _2SBA
30 _2CLKBA
29 _2OE
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
−40°C to 85°C
SSOP − DL
TSSOP − DGG
Tube
Tape and reel
Tape and reel
SN74LVT16646DL
SN74LVT16646DLR
SN74LVT16646DGGR
LVT16646
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.
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.
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.
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Copyright  2004, Texas Instruments Incorporated
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