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74LVQ245QSC View Datasheet(PDF) - Fairchild Semiconductor

Part NameDescriptionManufacturer
74LVQ245QSC Low Voltage Octal Bidirectional Transceiver with 3-STATE Outputs Fairchild
Fairchild Semiconductor Fairchild
74LVQ245QSC Datasheet PDF : 6 Pages
1 2 3 4 5 6
February 1992
Revised June 2001
74LVQ245
Low Voltage Octal Bidirectional Transceiver
with 3-STATE Outputs
General Description
The LVQ245 contains eight non-inverting bidirectional buff-
ers with 3-STATE outputs and is intended for bus-oriented
applications. Current sinking capability is 12 mA at both the
A and B ports. The Transmit/Receive (T/R) input deter-
mines the direction of data flow through the bidirectional
transceiver. 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 Z
condition.
Features
s Ideal for low power/low noise 3.3V applications
s Implements patented EMI reduction circuitry
s Available in SOIC JEDEC, SOIC EIAJ and QSOP
packages
s Guaranteed simultaneous switching noise level and
dynamic threshold performance
s Improved latch-up immunity
s Guaranteed incident wave switching into 75
s 4 kV minimum ESD immunity
Ordering Code
Order Number Package Number
Package Description
74LVQ245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVQ245SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVQ245QSC
MQA20
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Truth Table
Inputs
OE
T/R
Outputs
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
HIGH-Z State
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial
© 2001 Fairchild Semiconductor Corporation DS011357
Pin Descriptions
Pin Names
Description
OE
T/R
A0–A7
B0–B7
Output Enable Inputs
Transmit/Receive Input
Side A Inputs or
3-STATE Outputs
Side B Inputs or
3-STATE Outputs
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