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HD74LVCC3245A Datasheet

  • HD74LVCC3245A

  • Octal Bus Transceiver with adjustable output voltage and 3-s...

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HD74LVCC3245A
Octal Bus Transceiver with adjustable output voltage
and 3-state Outputs
REJ03D0379鈥?200
Rev.2.00
Oct. 21, 2004
Description
The HD74LVCC3245A has eight bus transceivers with three state outputs in a 24 pin package. When (DIR) is high,
data flows from the A inputs to the B outputs, and when (DIR) is low, data flows from the B inputs to the A outputs. A
and B bus are separated by making enable input (OE) high level. This 8-bit non-inverting bus transceiver contains two
separate power-supply rails.
And this product has two terminals (V
CCA
, V
CCB
), V
CCA
is connected with control input and A bus side, V
CCB
is
connected with B bus side. V
CCA
and V
CCB
are isolated.
The B port is designed to track V
CCB
, which accepts voltage from 3 V to 5.5 V, and the A port is designed to track V
CCA
,
which operates at 2.3 V to 3.6 V. This allows for translation from a 3.3 V to a 5 V system environment and vice versa,
or from a 2.5 V to a 3.3 V system environment and vice versa. Low voltage and high-speed operation is suitable at the
battery drive product (note type personal computer) and low power consumption extends the life of a battery for long
time operation.
Features
鈥?/div>
This product function as level shift transceiver that change V
CCA
input level to V
CCB
output level, V
CCB
input level to
V
CCA
output level by providing different supply voltage to V
CCA
and V
CCB
.
鈥?/div>
This product is able to the power management : Turn on and off the supply on V
CCB
side with providing the supply
of V
CCA
(Enable input (OE) : High level)
鈥?/div>
V
CCA
= 2.3 V to 3.6 V, V
CCB
= 3.0 V to 5.5 V
鈥?/div>
All control input V
I
(max) = 5.5 V (@V
CCA
= 0 V to 5.5 V)
鈥?/div>
All A bus side input outputs V
I/O
(max) = 5.5 V
(@V
CCA
= 0 V or output off state)
鈥?/div>
All B bus side input outputs V
I/O
(max) = 5.5 V
(@V
CCB
= 0 V or output off state)
鈥?/div>
High output current
A bus side: 鹵8 mA (@V
CCA
= 2.3 V)
鹵12 mA (@V
CCA
= 2.7 V)
鹵24 mA (@V
CCA
= 3.0 V)
B bus side: 鹵24 mA (@V
CCB
= 3.0 V)
鈥?/div>
Ordering Information
Part Name
HD74LVCC3245ATEL
Package Type
TSSOP鈥?4 pin
Package Code
TTP鈥?4DBV
T
Package
Abbreviation
Taping Abbreviation
(Quantity)
EL (1,000 pcs/reel)
Rev.2.00 Oct. 21, 2004 page 1 of 10

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