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HD74ALVC166245A
16–Bit Dual–supply Bus Transceiver with 3–state Outputs
REJ03D0158–0201
Rev.2.01
Apr. 12, 2005
Description
The HD74ALVC166245A has 16 bus transceivers with three state outputs in a 48-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 16-bit non-inverting bus transceiver uses two
separate power-supply rails.
And this product has two terminals (V
CCA
, V
CCB
), V
CCA
is connected with A bus side, V
CCB
is connected with control
input and B bus. V
CCA
and V
CCB
are isolated.
The A port is designed to track V
CCA
, which accepts voltages from 1.2 V to 2.7 V, and the B port is designed to track
V
CCB
, which operates at 1.4 V to 3.6 V. Therefore, Bidirectional broad voltage conversion is possible.
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
•
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
.
•
V
CCA
= 1.2 V to 2.7 V, V
CCB
= 1.4 V to 3.6 V (V
CCA
< V
CCB
)
•
All control input V
I
(max) = 3.6 V (@V
CCB
= 0 V to 3.6 V)
•
All A bus side input outputs V
I/O
(max) = 3.6 V
(@V
CCA
= 0 V or output off state)
•
All B bus side input outputs V
I/O
(max) = 3.6 V
(@V
CCB
= 0 V or output off state)
•
High output current
A bus side: ±2 mA (@V
CCA
= 1.2 V)
B bus side: ±4 mA (@V
CCB
= 1.5±0.1 V)
±4 mA (@V
CCA
= 1.5±0.1 V)
±6 mA (@V
CCB
= 1.8±0.15 V)
±6 mA (@V
CCA
= 1.8±0.15 V)
±18 mA (@V
CCB
= 2.5±0.2 V)
±24 mA (@V
CCB
= 3.3±0.3 V)
±18mA (@V
CCA
= 2.5±0.2 V)
•
Ordering Information
Part Name
HD74ALVC166245ATEL
Package Type
TSSOP–48Pin
Package Code
(Previous Code)
PTSP0048KA–A
(TTP–48DBV)
Package
Abbreviation
T
Taping Abbreviation
(Quantity)
EL (1,000pcs / Reel)
Rev.2.01 Apr. 12, 2005 page 1 of 12
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