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SN74LVC16373A_06 Datasheet, PDF (2/15 Pages) Texas Instruments – 16-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
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SN74LVC16373A
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCAS755A – DECEMBER 2003 – REVISED SEPTEMBER 2005
www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or
low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the
bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines
without interface or pullup components.
OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while
the outputs are in the high-impedance state.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in
a mixed 3.3-V/5-V system environment.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
GQL OR ZQL PACKAGE
(TOP VIEW)
123456
A
B
C
D
E
F
G
H
J
K
ABC
ABC
GRD OR ZRD PACKAGE
(TOP VIEW)
123456
A
B
C
D
E
F
G
H
J
TERMINAL ASSIGNMENTS(1)
(56-Ball GQL/ZQL Package)
1
2
3
4
5
6
A 1OE
NC
NC
NC
NC
1LE
B 1Q2
1Q1
GND
GND
1D1
1D2
C 1Q4 1Q3
VCC
VCC
1D3 1D4
D 1Q6
1Q5
GND
GND
1D5
1D6
E 1Q8 1Q7
1D7 1D8
F 2Q1 2Q2
2D2 2D1
G 2Q3
2Q4
GND
GND
2D4
2D3
H 2Q5 2Q6
VCC
VCC
2D6 2D5
J
2Q7
2Q8
GND
GND
2D8
2D7
K 2OE
NC
NC
NC
NC
2LE
(1) NC – No internal connection
TERMINAL ASSIGNMENTS(1)
(54-Ball GRD/ZRD Package)
1
2
3
4
5
6
A
1Q1
NC
1OE 1LE
NC
1D1
B
1Q3
1Q2
NC
NC
1D2 1D3
C
1Q5
1Q4
VCC
VCC
1D4
1D5
D
1Q7
1Q6
GND GND 1D6
1D7
E
2Q1
1Q8
GND GND 1D8
2D1
F
2Q3
2Q2
GND GND 2D2
2D3
G 2Q5
2Q4
VCC
VCC
2D4
2D5
H
2Q7
2Q6
NC
NC
2D6 2D7
J
2Q8
NC
2OE 2LE
NC
2D8
(1) NC – No internal connection
2
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