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54LVX4245J-QML Scheda tecnica(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte 54LVX4245J-QML
Spiegazioni elettronici  8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

54LVX4245J-QML Scheda tecnica(HTML) 1 Page - National Semiconductor (TI)

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54LVX4245
8-Bit Dual Supply Translating Transceiver with
TRI-STATE® Outputs
General Description
The LVX4245 is a dual-supply, 8-bit translating transceiver
that is designed to interface between a 5V bus and a 3V bus
in a mixed 3V/5V supply environment. The Transmit/Receive
(T/R) input determines the direction of data flow. Transmit
(active-HIGH) enables data from A ports to B ports; Receive
(active-LOW) enables data from B ports to A ports. The
Output Enable input, when HIGH, disables both A and B
ports by placing them in a TRI-STATE condition. The A port
interfaces with the 5V bus; the B port interfaces with the 3V
bus.
The LVX4245 is suitable for mixed voltage applications such
as systems using 3.3V memories which must interface with
existing buses or other components operating at 5.0V.
Features
n
Bidirectional interface between 5V and 3V buses
n
Control inputs compatible with TTL level
n
5V data flow at A port and 3V data flow at B port
n
Outputs source/sink 24 mA
n
Available in Ceramic DIP and Flatpack packages
n
Implements patented EMI reduction circuitry
n
Functionally compatible with the 54 series 245
n
Standard Microcircuit Drawing (SMD) 5962-9860601
Ordering Code
Order Number
Package Number
Package Description
54LVX4245J-QML
J24F
24-Lead Ceramic Dual-in-line
54LVX4245W-QML
W24C
24-Lead Cerpack
Logic Symbol
Pin Descriptions
Pin Names
Description
OE
Output Enable Input
T/R
Transmit/Receive Input
A
0–A7
Side A Inputs or TRI-STATE Outputs
B
0–B7
Side B Inputs or TRI-STATE Outputs
Connection Diagram
TRI-STATE® is a registered trademark of National Semiconductor
DS101021-1
Pin Assignment for
CDIP and Cerpack
DS101021-2
March 1999
© 2001 National Semiconductor Corporation
DS101021
www.national.com


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