SN54LVTH646_15 Datasheet, PDF (1/19 Pages) Texas Instruments – 3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

SN54LVTH646, SN74LVTH646
3.3ĆV ABT OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3ĆSTATE OUTPUTS
SCBS705H − AUGUST 1997 − REVISED MAY 2004
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 I_off and Power-Up 3-State Support Hot
Insertion
SN54LVTH646 . . . JT OR W PACKAGE
SN74LVTH646 . . . DB, DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
D Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D Latch-Up Performance Exceeds 500 mA Per
JESD 17
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
SN54LVTH646 . . . FK PACKAGE
(TOP VIEW)
CLKAB 1
SAB 2
DIR 3
A1 4
A2 5
A3 6
A4 7
A5 8
A6 9
A7 10
A8 11
GND 12
24 V_CC
23 CLKBA
22 SBA
21 OE
20 B1
19 B2
18 B3
17 B4
16 B5
15 B6
14 B7
13 B8
4 3 2 1 28 27 26
A1 5
25 OE
A2 6
24 B1
A3 7
23 B2
NC 8
22 NC
A4 9
21 B3
A5 10
20 B4
A6 1112 _{13 14 15 16 17 1819} ^B5
description/ordering information
NC − No internal connection
These bus transceivers and registers are designed specifically for low-voltage (3.3-V) V_CC operation, but with
the capability to provide a TTL interface to a 5-V system environment.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE MARKING
SOIC − DW
Tube
Tape and reel
SN74LVTH646DW
SN74LVTH646DWR
LVTH646
SOP − NS
Tape and reel SN74LVTH646NSR
LVTH646
−40°C to 85°C
SSOP − DB
TSSOP − PW
Tape and reel
Tube
Tape and reel
SN74LVTH646DBR
SN74LVTH646PW
SN74LVTH646PWR
LXH646
LXH646
TVSOP − DGV
Tape and reel SN74LVTH646DGVR LXH646
CDIP − JT
−55°C to 125°C CFP − W
Tube
Tube
SNJ54LVTH646JT
SNJ54LVTH646W
SNJ54LVTH646JT
SNJ54LVTH646W
LCCC − FK
Tube
SNJ54LVTH646FK
SNJ54LVTH646FK
† _{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.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2004, Texas Instruments Incorporated
On products compliant to MILĆPRFĆ38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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