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74LVX4245MTCX Arkusz danych(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Numer części 74LVX4245MTCX
Szczegółowy opis  8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
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Producent  NSC [National Semiconductor (TI)]
Strona internetowa  http://www.national.com
Logo NSC - National Semiconductor (TI)

74LVX4245MTCX Arkusz danych(HTML) 1 Page - National Semiconductor (TI)

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TLF11540
October 1995
74LVX4245
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 3V5V supply environment The TransmitRe-
ceive (TR) 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 HIGH Z 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 laptop computers using 33V CPU’s and 5V LCD dis-
plays
Features
Y
Bidirectional interface between 5V and 3V buses
Y
Control inputs compatible with TTL level
Y
5V data flow at A port and 3V data flow at B port
Y
Outputs sourcesink 24 mA at 5V bus 12 mA at 3V
bus
Y
Guaranteed simultaneous switching noise level and dy-
namic threshold performance
Y
Available in SOIC QSOP and TSSOP packages
Y
Implements patented Quiet Series EMI reduction
circuitry
Y
Functionally compatible with the 74 series 245
Logic Symbol
TLF11540 – 1
Pin Names
Description
OE
Output Enable Input
TR
TransmitReceive Input
A0–A7
Side A Inputs or TRI-STATE Outputs
B0–B7
Side B Inputs or TRI-STATE Outputs
Connection Diagram
Pin Assignment
for SOIC QSOP and TSSOP
TLF11540 – 2
SOIC JEDEC
QSOP
TSSOP
Order Number
74LVX4245WM
74LVX4245QSC
74LVX4245MTC
74LVX4245WMX
74LVX4245QSCX
74LVX4245MTCX
See NS Package Number
M24B
MQA24
MTC24
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M115Printed in U S A


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