74LCX32244 Datasheet, PDF (2/7 Pages) Fairchild Semiconductor – Low Voltage 32-Bit Buffer/Line Driver with 5V Tolerant Inputs and Outputs

Connection Diagram
Pin Descriptions
(Top Thru View)
Functional Description
The LCX32244 contains thirty-two non-inverting buffers
with 3-STATE standard outputs. The device is nibble
(4-bits) controlled with each nibble functioning identically,
but independent of the other. The control pins can be
shorted together to obtain full 32-bit operation. The
3-STATE outputs are controlled by an Output Enable (OE_n)
input for each nibble. When OE_n is LOW, the outputs are in
2-state mode. When OE_n is HIGH, the outputs are in the
high impedance mode, but this does not interfere with
entering new data into the inputs.
Logic Diagrams
Pin Names
Description
OE_n
I₀–I₃₁
O₀–O₃₁
Output Enable Input (Active LOW)
Inputs
Outputs
FBGA Pin Assignments
1
2
3
4
5
6
A
O₁
O₀ OE₁ OE₂
I₀
I₁
B
O₃
O₂ GND GND I₂
I₃
C
O₅
O₄
V_CC V_CC
I₄
I₅
D
O₇
O₆ GND GND I₆
I₇
E
O₉
O₈ GND GND I₈
I₉
F
0₁₁
O₁₀ V_CC V_CC
I₁₀
I₁₁
G
O₁₃ O₁₂ GND GND I₁₂
I₁₃
H
O₁₄ O₁₅ OE₄ OE₃ I₁₅
I₁₄
J
O₁₇ O₁₆ OE₅ OE₆ I₁₆
I₁₇
K
O₁₉ 0₁₈ GND GND I₁₈
I₁₉
L
O₂₁ O₂₀ V_CC V_CC
I₂₀
I₂₁
M
O₂₃ O₂₂ GND GND I₂₂
I₂₃
N
O₂₅ O₂₄ GND GND I₂₄
I₂₅
P
O₂₇ O₂₆ V_CC V_CC
I₂₆
I₂₇
R
O₂₉ O₂₈ GND GND I₂₈
I₂₉
T
O₃₀ O₃₁ OE₈ OE₇ I₃₁
I₃₀
Truth Table
Inputs
Outputs
OE_n
I_n
O_n
L
L
L
L
H
H
H
X
Z
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial (HIGH or LOW, inputs may not float)
Z = High Impedance
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