Datasheet

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FEATURES
DB, DBQ, DW, NS, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
CCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
GND
V
CCB
NC
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
NC - No internal connection
DESCRIPTION/ORDERING INFORMATION
SN74LVCC3245A
OCTAL BUS TRANSCEIVER
WITH ADJUSTABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS
SCAS585O NOVEMBER 1996 REVISED MARCH 2005
Bidirectional Voltage Translator
2.3 V to 3.6 V on A Port and 3 V to 5.5 V on B
Port
Control Inputs V
IH
/V
IL
Levels Are Referenced
to V
CCA
Voltage
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)
This 8-bit (octal) noninverting bus transceiver contains two separate supply rails. The B port is designed to track
V
CCB
, which accepts voltages from 3 V to 5.5 V, and the A port is designed to track V
CCA
, which operates at 2.3
V to 3.6 V. This allows for translation from a 3.3-V to a 5-V system environment and vice versa, from a 2.5-V to a
3.3-V system environment and vice versa.
The SN74LVCC3245A 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 control circuitry (DIR, OE) is powered by V
CCA
.
ORDERING INFORMATION
T
A
PACKAGE
(1)
ORDERABLE PART NUMBER TOP-SIDE MARKING
Tube of 25 SN74LVCC3245ADW
SOIC DW LVCC3245A
Reel of 2000 SN74LVCC3245ADWR
SOP NS Reel of 2000 SN74LVCC3245ANSR LVCC3245A
SSOP DB Reel of 2000 SN74LVCC3245ADBR LH245A
–40 ° C to 85 ° C
SSOP (QSOP) DBQ Reel of 2500 SN74LVCC3245ADBQR LVCC3245A
Tube of 60 SN74LVCC3245APW
TSSOP PW Reel of 2000 SN74LVCC3245APWR LH245A
Reel of 250 SN74LVCC3245APWT
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLE
(EACH TRANSCEIVER)
INPUTS
OPERATION
OE DIR
L L B data to A bus
L H A data to B bus
H X Isolation
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.
Copyright © 1996–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

Summary of content (23 pages)