74lvxc164245 National Semiconductor Corporation, 74lvxc164245 Datasheet

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74lvxc164245

Manufacturer Part Number
74lvxc164245
Description
16-bit Dual Supply Configurable Voltage Interface Transceiver With Tri-state-r Outputs
Manufacturer
National Semiconductor Corporation
Datasheet
C 1996 National Semiconductor Corporation
74LVXC164245
16-Bit Dual Supply Configurable Voltage
Interface Transceiver with TRI-STATE Outputs
General Description
The LVXC164245 is a 48-pin dual-supply 16-bit configura-
ble voltage interface transceiver suited for PCMCIA and oth-
er real time configurable I O applications The V
cepts a 5V supply level The ‘‘B’’ port is a dedicated 5V port
The V
is configured to track the V
5V level on the V
level and a 3V V
This device will allow the V
pins on the ‘‘A’’ port to float 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 dur-
ing normal operation
Logic Symbol
Order Number
See NS Package
Number
Pin Names
OE
T R
A
B
0
0
CCA
– A
– B
n
n
15
15
pin accepts a 3V-to-5V supply level The ‘‘A’’ port
CC
CC
will configure the I O pins at a 3V level
pin will configure the I O pins at a 5V
Output Enable Input (Active Low)
Transmit Receive Input
Side A Inputs TRI-STATE Outputs
Side B Inputs TRI-STATE Outputs
74LVXC164245MEA
74LVXC164245MEAX
CCA
CCA
MS48A
TL F 12535
SSOP
supply level respectively A
voltage source pin and I O
Description
74LVXC164245MTD
74LVXC164245MTDX
CCB
TL F 12535 – 1
TSSOP JEDEC
pin ac-
MTD48
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Power up down high impedance provides glitch-free
bus loading
Allows A port and V
OE is HIGH
Bidirectional interface between 5V and 3V-to-5V buses
Inputs compatible with TTL level
Allow dual V
OE is HIGH
Guaranteed simultaneous switching noise level and dy-
namic threshold performance
Available in SSOP and TSSOP packages
Implements patented Quiet Series
circuitry
Flexible V
Functionally compatible with the 74 series 16245
RRD-B30M17 Printed in U S A
CCA
Connection Diagram
ADVANCE INFORMATION
CC
operating range
supplies power up down easily when
Pin Assignment for
SSOP and TSSOP
CCA
to float simultaneously when
TM
EMI reduction
http
www national com
March 1996
TL F 12535 – 2

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74lvxc164245 Summary of contents

Page 1

... CCA Functionally compatible with the 74 series 16245 Y Connection Diagram Pin Assignment for SSOP and TSSOP TL F 12535 – 1 TSSOP JEDEC 74LVXC164245MTD 74LVXC164245MTDX MTD48 RRD-B30M17 Printed March 1996 to float simultaneously when EMI reduction 12535 – 2 http www national com ...

Page 2

Functional Description The LVXC164245 contains sixteen non-inverting bidirection- al buffers with TRI-STATE outputs The device is byte con- trolled with each byte functioning identically but indepen- dent of the other The control pins can be shorted together to obtain full ...

Page 3

... Physical Dimensions inches (millimeters) unless otherwise noted 48-Lead Molded Shrink Small Outline Package EIAJ Order Number 74LVXC164245MEA or 74LVXC164245MEAX NS Package Number MS48A 3 http www national com ...

Page 4

... Physical Dimensions millimeters (Continued) 48-Lead Molded Thin Shrink Small Outline Package JEDEC Body Width Order Number 74LVXC164245MTD or 74LVXC164245MTDX LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL ...

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