74VCXH245WMX Fairchild Semiconductor, 74VCXH245WMX Datasheet

TXRX BIDIRECT LOW VOLT 20SOIC

74VCXH245WMX

Manufacturer Part Number
74VCXH245WMX
Description
TXRX BIDIRECT LOW VOLT 20SOIC
Manufacturer
Fairchild Semiconductor
Series
74VCXHr
Datasheet

Specifications of 74VCXH245WMX

Logic Type
Transceiver, Non-Inverting
Number Of Elements
1
Number Of Bits Per Element
8
Current - Output High, Low
24mA, 24mA
Voltage - Supply
1.2 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
© 2005 Fairchild Semiconductor Corporation
74VCXH245WM
74VCXH245MTC
74VCXH245
Low Voltage Bidirectional Transceiver with Bushold
General Description
The VCXH245 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 VCXH245
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 74VCXH245 is designed for low voltage (1.2V to 3.6V)
V
The 74VCXH245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Quiet Series
Order Number
CC
applications.
¥
is a trademark of Fairchild Semiconductor Corporation.
Package Number
MTC20
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
DS500198
Features
Pin Descriptions
OE
T/R
A
B
0
0
1.2V to 3.6V V
Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
t
Static Drive (I
Uses patented Quiet Series
Latchup performance exceeds 300 mA
ESD performance:
Pin Names
PD
–A
–B
3.5 ns max for 3.0V to 3.6V V
r
circuitry
Human body model
Machine model
24 mA @ 3.0V V
7
7
Package Description
OH
CC
Output Enable Input (Active LOW)
Transmit/Receive Input
Side A Bushold Inputs or 3-STATE Outputs
Side B Bushold Inputs or 3-STATE Outputs
/I
OL
supply operation
!
)
200V
CC
!
2000V
¥
June 1999
Revised April 2005
Description
noise/EMI reduction
CC
www.fairchildsemi.com

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74VCXH245WMX Summary of contents

Page 1

... 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 ¥ Quiet Series is a trademark of Fairchild Semiconductor Corporation. © 2005 Fairchild Semiconductor Corporation Features 1.2V to 3.6V V supply operation ...

Page 2

Connection Diagram Logic Diagram www.fairchildsemi.com Truth Table Inputs Outputs OE T Bus B –B Data to Bus Bus A –A Data to Bus HIGH Z State on A ...

Page 3

Absolute Maximum Ratings Supply Voltage ( Input Voltage ( Output Voltage ( Outputs 3-STATE  Outputs Active (Note 2) 0. Input Diode Current ( ...

Page 4

DC Electrical Characteristics Symbol Parameter V LOW Level Output Voltage OL I Input Leakage Current I I Bushold Input Minimum I(HOLD) Drive Hold Current I Bushold Input Over-Drive I(OD) Current to Change State I 3-STATE Output Leakage OZ I Quiescent ...

Page 5

AC Electrical Characteristics Symbol Parameter t , Propagation Delay C PHL PLH Output Enable Time C PZL L t PZH ...

Page 6

AC Loading and Waveforms (V TEST PLH PHL PZL PLZ PZH PHZ FIGURE 2. Waveform for Inverting and Non-inverting Functions FIGURE 3. 3-STATE Output High Enable and Disable Times for Low ...

Page 7

AC Loading and Waveforms (V TEST PLH PHL PZL PLZ PZH PHZ FIGURE 6. Waveform for Inverting and Non-Inverting Functions FIGURE 7. 3-STATE Output High Enable and Disable Times for Low ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit, JEDEC MS-013, 0.300” Wide Body www.fairchildsemi.com Package Number M20B 8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package, JEDEC MO-153, 4.4mm Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the ...

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