SN74LVTR245PWR Datasheet, PDF (1/10 Pages) Texas Instruments – 33-V ABT OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS

D Supports Mixed-Mode Signal Operation
(5-V Input and Output Voltages With
3.3-V V_CC)
D Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 3.3 V, T_A = 25°C
D Supports Unregulated Battery Operation
Down to 2.7 V
D Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D Reduced Output Structure on A Port
Minimizes V_OHV
D Latch-Up Performance Exceeds 500 mA Per
JESD 17
SN74LVTR245
3.3ĆV ABT OCTAL TRANSCEIVER
WITH 3ĆSTATE OUTPUTS
SCAS428A – OCTOBER 1993 – REVISED NOVEMBER 2002
NS 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
description/ordering information
This octal bus transceiver is 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.
The SN74LVTR245 is designed for asynchronous communication between data buses. The device transmits
data 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 the buses are
effectively isolated.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
The A port is designed to minimize the undershoot exhibited on high-to-low transitions during simultaneous
switching conditions.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
–40°C to 85°C SOP – NS
Tape and reel SN74LVTR245NSR
LVTR245
† _{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.
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Copyright  2002, Texas Instruments Incorporated
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