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74VCXH2245 Datasheet PDF

74VCXH2245
Fairchild Semiconductor

Part Number 74VCXH2245
Description Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs
Page 8 Pages
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June 1999
Revised July 1999
74VCXH2245
Low Voltage Bidirectional Transceiver with Bushold
and 26Series Resistors in B Outputs
General Description
The VCXH2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The T/R input determines the direction
of data flow. The OE input disables both the A and B Ports
by placing them in a high impedance state. The VCXH2245
data inputs include active bushold circuitry, eliminating the
need for external pull-up resistors to hold unused or float-
ing data inputs at a valid logic level.
The 74VCXH2245 is designed for low voltage (1.65V to
3.6V) VCC applications. The VCXH2245 is also designed
with 26series resistance in the B Port outputs. This
design reduces line noise in applications such as memory
address drivers, clock drivers, and bus transceivers trans-
mitters
The 74VCXH2245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Features
s 1.65V-3.6V VCC supply operation
s 3.6V tolerant control inputs
s Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
s 26series resistors in B Port outputs
s tPD (A to B)
4.4 ns max for 3.0V to 3.6V VCC
5.6 ns max for 2.3V to 2.7V VCC
9.8 ns max for 1.65V to 1.95V VCC
s Static Drive (IOH/IOL B outputs):
±12 mA @ 3.0V VCC
±8 mA @ 2.3V VCC
±3 mA @ 1.65V VCC
s Uses patented Quiet Seriesnoise/EMI reduction
circuitry
s Latchup performance exceeds 300 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Order Number Package Number
Package Description
74VCXH2245WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
74VCXH2245MTC
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
Quiet Seriesis a trademark of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation ds500199
www.fairchildsemi.com

















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74VCXH2245 Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs 74VCXH2245
Fairchild Semiconductor
74VCXH2245 pdf



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