74lvxc3245wmx-nl Fairchild Semiconductor, 74lvxc3245wmx-nl Datasheet

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74lvxc3245wmx-nl

Manufacturer Part Number
74lvxc3245wmx-nl
Description
74lvxc3245 8-bit Dual Supply Configurable Voltage Interface Transceiver With 3-state Outputs
Manufacturer
Fairchild Semiconductor
Datasheet
© 2003 Fairchild Semiconductor Corporation
74LVXC3245WM
74LVXC3245QSC
74LVXC3245MTC
74LVXC3245
8-Bit Dual Supply Configurable Voltage Interface
Transceiver with 3-STATE Outputs
General Description
The LVXC3245 is a 24-pin dual-supply, 8-bit configurable
voltage interface transceiver suited for PCMCIA and other
real time configurable I/O applications. The V
accepts a 3V supply level. The A Port is a dedicated 3V
port. The V
Port is configured to track the V
tively. A 5V level on the V
at a 5V level and a 3V V
3V level. The A Port should interface with a 3V host system
and the B Port to the card slots. This device will allow the
V
when OE is HIGH. This feature is necessary to buffer data
to and from a PCMCIA socket that permits PCMCIA cards
to be inserted and removed during normal operation.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
Pin Descriptions
Order Number
CCB
Pin Names
A
B
voltage source pin and I/O pins on the B Port to float
T/R
OE
0
0
–A
–B
7
7
CCB
pin accepts a 3V-to-5V supply level. The B
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Package Number
MQA24
MTC24
CC
M24B
CC
will configure the I/O pins at a
pin will configure the I/O pins
Description
CCB
supply level respec-
224-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
DS012008
CCA
pin
Features
Connection Diagram
Bidirectional interface between 3V and 3V-to-5V buses
Control inputs compatible with TTL level
Outputs source/sink up to 24 mA
Guaranteed simultaneous switching noise level and
dynamic threshold performance
Implements patented EMI reduction circuitry
Flexible V
Allows B Port and V
is HIGH
Functionally compatible with the 74 series 245
Package Description
CCB
operating range
CCB
to float simultaneously when OE
February 1994
Revised October 2003
www.fairchildsemi.com

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74lvxc3245wmx-nl Summary of contents

Page 1

... Side A Inputs or 3-STATE Outputs –B Side B Inputs or 3-STATE Outputs 0 7 © 2003 Fairchild Semiconductor Corporation Features Bidirectional interface between 3V and 3V-to-5V buses Control inputs compatible with TTL level pin CCA Outputs source/sink Guaranteed simultaneous switching noise level and dynamic threshold performance ...

Page 2

Truth Table HIGH Voltage Level L LOW Voltage Level X Immaterial Logic Diagram www.fairchildsemi.com Inputs Outputs T/R L Bus B Data to Bus A H Bus A Data to Bus B X HIGH-Z State 2 ...

Page 3

Absolute Maximum Ratings Supply Voltage ( CCA CCB DC Input Voltage ( OE, T/R 0. Input/Output Voltage ( ...

Page 4

DC Electrical Characteristics V CCA Symbol Parameter (V) I Maximum 3-STATE 3.6 OZA Output Leakage 3 Maximum 3-STATE 3.6 OZB Output Leakage 3 Maximum B 3 /Input All Inputs ...

Page 5

AC Electrical Characteristics 2.7V–3.6V CCA Symbol Parameter V 4.5V–5.5V CCB Min Typ (Note 6) t Propagation Delay 1.0 4.8 PHL 1.0 3.9 PLH t Propagation Delay 1.0 ...

Page 6

Power Up Considerations To insure the system does not experience unnecessary I current draw, bus contention, or oscillations during power up, the following guidelines should be adhered to (refer to Table 1): • Power up the control side of the ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide Package Number M24B Package Number MQA24 7 www.fairchildsemi.com ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 24-Lead Thin Shrink Small Outline Package (TSSOP), 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 ...

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