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74LCXH2245MTC Scheda tecnica(PDF) 1 Page - Fairchild Semiconductor

Il numero della parte 74LCXH2245MTC
Spiegazioni elettronici  Low Voltage Bidirectional Transceiver with Bushold and 26ohm Series Resistors in B Outputs
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

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© 2005 Fairchild Semiconductor Corporation
DS500409
www.fairchildsemi.com
October 2000
Revised March 2005
74LCXH2245
Low Voltage Bidirectional Transceiver with Bushold
and 26
: Series Resistors in B Outputs
General Description
The LCXH2245 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 26
: series resistor in the B Port
output helps reduce output overshoot and undershoot.
The LCXH2245 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing CMOS low power dissipation.
The LCXH2245 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 Bushold on inputs eliminates the need for external
pull-up/pull-down resistors
s 7.0 ns tPD max (VCC 3.3V), 10 PA ICC max
s Power down high impedance outputs
s
r12 mA output drive B Port (VCC 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s Equivalent 26
: series resistor on B Port outputs
s ESD performance:
Human body model
! 2000V
Machine model
! 200V
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Logic Symbol
Pin Descriptions
Connection Diagram
GTO
¥ is a trademark of Fairchild Semiconductor Corporation.
Order Number
Package Number
Package Description
74LCXH2245WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LCXH2245SJ
M20D
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCXH2245MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
74LCXH2245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pin Names
Description
OE
Output Enable Input
T/R
Transmit/Receive Input
A0–A7
Side A Inputs or 3-STATE Outputs (Bushold)
B0–B7
Side B Inputs or 3-STATE Outputs (Bushold)


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