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74LCXH245 View Datasheet(PDF) - Fairchild Semiconductor

Part NameDescriptionManufacturer
74LCXH245 Low Voltage Bidirectional Transceiver with Bushold Fairchild
Fairchild Semiconductor Fairchild
74LCXH245 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
October 2000
Revised September 2001
74LCXH245
Low Voltage Bidirectional Transceiver with Bushold
General Description
The LCXH245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The device is designed for low voltage
(2.5V and 3.3V) VCC applications. The T/R input deter-
mines the direction of data flow through the device. The OE
input disables both the A and B ports by placing them in a
high impedance state.
The LCXH245 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation. The LCXH16244 data inputs
include active bushold circuitry, eliminating the need for
external pull-up resistors to hold unused or floating data
inputs at a valid logic level.
Features
s 5V tolerant control inputs
s 2.3V–3.6V VCC specifications provided
s 7.0 ns tPD max (VCC = 3.3V), 10 µA ICC max
s Power down high impedance outputs
s ±24 mA output drive (VCC = 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s Bushold on inputs eliminates the need for external
pull-up/pull-down resistors
s ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Order Number Package Number
Package Description
74LCXH245WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LCXH245SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCXH245MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74LCXH245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names
Description
OE
T/R
A0–A7
B0–B7
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs (Bushold)
Side B Inputs or 3-STATE Outputs (Bushold)
GTOis a trademark of Fairchild Semiconductor Corporation.
© 2001 Fairchild Semiconductor Corporation DS500363
www.fairchildsemi.com
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