SN74LV245AT Datasheet, PDF (1/19 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

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FEATURES
• Inputs Are TTL-Voltage Compatible
• 4.5-V to 5.5-V V_CC Operation
• Typical t_pd of 3.5 ns at 5 V
• Typical V_OLP (Output Ground Bounce) <0.8 V
at V_CC = 5 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot) >2.3 V
at V_CC = 5 V, T_A = 25°C
• Supports Mixed-Mode Voltage Operation on
All Ports
DB, DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
DIR 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 ⁹
GND ¹⁰
20 V_CC
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 _B7
11 _B8
SN74LV245AT
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005
• I_off Supports Partial-Power-Down Mode
Operation
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
xxxxxxx
RGY PACKAGE
(TOP VIEW)
1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
10
20
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11
DESCRIPTION/ORDERING INFORMATION
This octal bus transceiver is designed for asynchronous two-way communication between data buses. The
control-function implementation minimizes external timing requirements.
The SN74LV245AT 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.
T_A
–40°C to 85°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
QFN – RGY
Tape and reel
SN74LV245ATRGYR
SOIC – DW
Tube
Tape and reel
SN74LV245ATDW
SN74LV245ATDWR
SOP – NS
Tape and reel
SN74LV245ATNSR
SSOP – DB
Tape and reel
SN74LV245ATDBR
TSSOP – PW
Tape and reel
SN74LV245ATPWR
TVSOP – DGV
Tape and reel
SN74LV245ATGVR
TOP-SIDE MARKING
VV245
LV245A
74LV245A
LV245A
LV245AT
LV245A
(1) 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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004–2005, Texas Instruments Incorporated