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PDF 74LVX3245 Data sheet ( Hoja de datos )
| Número de pieza | 74LVX3245 | |
| Descripción | 8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs | |
| Fabricantes | Fairchild Semiconductor | |
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June 2014
74LVX3245
8-Bit, Dual-Supply Translating Transceiver with
3-State Outputs
Features
Bidirectional Interface Between 3 V and 5 V Buses
Inputs Compatible with TTL Level
3 V Data Flow at A-Port and 5 V Data Flow at B-
Port
Outputs Source / Sink: 24 mA
Guaranteed Simultaneous Switching Noise Level
and Dynamic Threshold Performance
Implements Proprietary EMI Reduction Circuitry
Functionally Compatible with the 74 Series 245
Description
The 74LVX3245 is a dual-supply, 8-bit translating
transceiver designed to interface between a 3 V bus and
a 5 V bus in a mixed 5 V supply environment. The
Transmit/ Receive (T/R¯ ) input determines the direction
of data flow. Transmit (active-HIGH) enables data from
A-ports to B-ports; receive (active-LOW) enables data
from B-ports to A-ports. The output enable input, when
HIGH, disables both A- and B-ports by placing them in a
high-impedance condition. The A-port interfaces with
the 3 V bus; the B-port interfaces with the 5 V bus.
The 74LVX3245 is suitable for mixed-voltage
applications, such as notebook computers using 3.3 V
CPU and 5V peripheral components.
Related Resources
AN-5001 — Using Fairchild’s LVX Low-Voltage
Dual-Supply CMOS Translating Transceivers
Ordering Information
Part Number
Operating
Temperature Range
Package
74LVX3245WM
74LVX3245WMX
74LVX3245QSC
74LVX3245QSCX
74LVX3245MTC
74LVX3245MTCX
-40 to +85°C
24-Lead Small-Outline Integrated Circuit
(SOIC), JEDEC MS-013, 0.300" Wide
24-Lead Quarter-Size Outline Package
(QSOP), JEDEC MO-137, 0.150" Wide
24-Lead Thin-Shrink Small-Outline
Package (TSSOP), JEDEC MO-153,
4.4 mm Wide
Packing Method
Tubes
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
© 1993 Fairchild Semiconductor Corporation
74LVX3245 • Rev. 1.0.3
www.fairchildsemi.com
1 page  
DC Electrical Characteristics
Symbol
Parameter
Conditions
VCCA VCCB
(V) (V)
TA= -25°C TA=-40 to+85°C
Units
Typ. Guaranteed Limits
VIHA
VIHB
VILA
VILB
VOHA
VOHB
VOLA
VOLB
IIN
IOZA
IOZB
∆ICC
ICCA
ICCB
An, T/R¯ ,
Minimum /OE
HIGH Level
Input Voltage Bn
VOUT ≤ 0.1 V or
≥ VCC - 0.1 V
3.6 5.0
2.7 5.0
3.3 4.5
3.3 5.5
2.0
2.0
2.0
2.0
An, T/R¯ ,
Minimum
/OE
LOW Level
Input Voltage Bn
VOUT ≤ 0.1 V or
≥ VCC - 0.1 V
3.6 5.0
2.7 5.0
3.3 4.5
3.3 5.5
0.8
0.8
0.8
0.8
IOUT=-100 µA
3.0 4.5 2.99 2.90
IOH=-24 mA
3.0 4.5 2.65 2.35
Minimum HIGH Level IOH=-12 mA
Output Voltage
IOH=-24 mA
2.7 4.5 2.50
2.7 4.5 2.30
2.30
2.10
IOUT=-100 µA
3.0 4.5 4.50 4.40
IOH=-24 mA
3.0 4.5 4.25 3.86
IOUT=100 µA
IOH=24 mA
3.0 4.5 0.002 0.100
3.0 4.5 0.210 0.360
Minimum LOW Level
Output Voltage
IOH=12 mA
IOH=24 mA
2.7 4.5 0.110 0.360
2.7 4.5 0.220 0.420
IOUT=100 µA
IOH=24 mA
3.0 4.5 0.002 0.100
3.0 4.5 0.180 0.360
Maximum Input
Leakage Current;
/OE, T/R¯
VIN=VCCB, GND
3.6 5.5
±0.1
Maximum 3-State
Output Leakage; An
VIN=VIL, VIH;
/OE= VCCA;
VO=VCCA, GND
3.6 5.5
±0.5
Maximum 3-State
Output Leakage; Bn
VIN=VIL, VIH;
/OE= VCCA;
VO=VCCB, GND
3.6 5.5
±0.5
Maximum
ICCT/Input at
Bn VIN=VCCB-2.1 V
An, T/R¯ ,
/OE
VIN=VCCA-0.6 V
3.6 5.5 1.00
3.6 5.5
1.35
0.35
Quiescent VCCA Supply
Current
An=VCCA or GND,
Bn=VCCB or GND,
/OE=GND,
T/R¯ =GND
3.6
5.5
5
Quiescent VCCB Supply
Current
An=VCCA or GND,
Bn=VCCB or GND,
/OE=GND,
T/R¯ =VCCA
3.6
5.5
8
2.0
2.0
2.0
2.0
0.8
0.8
0.8
0.8
2.90
2.25
2.20
2.00
4.40
3.76
0.100
0.440
0.440
0.500
0.100
0.440
±1.0
±5.0
±5.0
1.50
0.50
50
80
V
V
V
V
µA
µA
µA
mA
µA
Continued on the following page…
© 1993 Fairchild Semiconductor Corporation
74LVX3245 • Rev. 1.0.3
5
www.fairchildsemi.com
5 Page 
TRADEMARKS
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not
intended to be an exhaustive list of all such trademarks.
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Quiet Series
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Saving our world, 1mW/W/kW at a time™
SignalWise
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Solutions for Your Success
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SuperSOT-3
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SyncFET
Sync-Lock™
®*
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DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE
RELIABILITY, FUNCTION, OR DESIGN. TO OBTAIN THE LATEST, MOST UP-TO-DATE DATASHEET AND PRODUCT INFORMATION, VISIT OUR
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ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF
OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE
WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
AUTHORIZED USE
Unless otherwise specified in this data sheet, this product is a standard commercial product and is not intended for use in applications that require extraordinary
levels of quality and reliability. This product may not be used in the following applications, unless specifically approved in writing by a Fairchild officer: (1) automotive
or other transportation, (2) military/aerospace, (3) any safety critical application – including life critical medical equipment – where the failure of the Fairchild product
reasonably would be expected to result in personal injury, death or property damage. Customer’s use of this product is subject to agreement of this Authorized Use
policy. In the event of an unauthorized use of Fairchild’s product, Fairchild accepts no liability in the event of product failure. In other respects, this product shall be
subject to Fairchild’s Worldwide Terms and Conditions of Sale, unless a separate agreement has been signed by both Parties.
ANTI-COUNTERFEITING POLICY
Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com,
under Terms of Use
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their
parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed
applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the
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PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status
Advance Information Formative / In Design
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
Definition
Datasheet contains the design specifications for product development. Specifications may change
in any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
Semiconductor reserves the right to make changes at any time without notice to improve design.
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make
changes at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.
The datasheet is for reference information only.
Rev. I75
© Fairchild Semiconductor Corporation
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet 74LVX3245.PDF ] | |
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