SN74LVC4245A-EP_15 Datasheet, PDF (1/15 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS

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SN74LVC4245A-EP
OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER
WITH 3-STATE OUTPUTS
SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005
FEATURES
• Controlled Baseline
– One Assembly/Test Site, One Fabrication
Site
• Enhanced Diminishing Manufacturing
Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree ⁽¹⁾
• Bidirectional Voltage Translator
• 5.5 V on A Port and 2.7 V to 3.6 V on B Port
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
(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.
PW PACKAGE
(TOP VIEW)
(5 V) V_CCA 1
DIR 2
A1 ³
A2 4
A3 5
A4 6
A5 7
A6 ⁸
A7 ⁹
A8 ¹⁰
GND 11
GND 12
24 V_CCB (3.3 V)
23 V_CCB (3.3 V)
22 _OE
21 B1
20 B2
19 B3
18 B4
17 _B5
16 _B6
15 _B7
14 B8
13 GND
DESCRIPTION/ORDERING INFORMATION
This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has V_CCB, which is set at
3.3 V, and A port has V_CCA, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and
vice versa.
The SN74LVC4245A 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.
The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin '245 device
without board re-layout. The designer uses the data paths for pins 2–11 and 14–23 of the SN74LVC4245A to
align with the conventional '245 pinout.
ORDERING INFORMATION
T_A
–40°C to 85°C
PACKAGE ⁽¹⁾
TSSOP – PW
Reel of 2000
ORDERABLE PART NUMBER
SN74LVC4245AIPWREP
TOP-SIDE MARKING
C4245AEP
(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