SN74LVC245A-EP Datasheet, PDF (1/13 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

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FEATURES
• Controlled Baseline
– One Assembly/Test Site, One Fabrication
Site
• Enhanced Diminishing Manufacturing
Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree ⁽¹⁾
• Operates From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 6.3 ns at 3.3 V
• Typical V_OLP (Output Ground Bounce) <0.8 V
at V_CC = 3.3 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot) >2 V at
V_CC = 3.3 V, T_A = 25°C
• I_off Supports Partial-Power-Down Mode
Operation
• Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage With 3.3-V
V_CC)
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
(1) Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
SN74LVC245A-EP
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS741B – DECEMBER 2003 – REVISED AUGUST 2005
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
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
DESCRIPTION/ORDERING INFORMATION
This octal bus transceiver is designed for 1.65-V to 3.6-V V_CC operation.
The SN74LVC245A 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.
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in
a mixed 3.3-V/5-V system environment.
ORDERING INFORMATION
T_A
–40°C to 85°C
TSSOP – PW
PACKAGE ⁽¹⁾
Reel of 2000
ORDERABLE PART NUMBER
SN74LVC245AIPWREP
TOP-SIDE MARKING
C245AEP
(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 © 2003–2005, Texas Instruments Incorporated