74LCX32245 Datasheet, PDF (2/8 Pages) Fairchild Semiconductor – Low Voltage 32-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs

Connection Diagram
(Top Thru View)
Truth Tables
Inputs
OE₁
T/R₁
L
L
L
H
H
X
Outputs
Bus B₀–B₇ Data to Bus A₀–A₇
Bus A₀–A₇ Data to Bus B₀–B₇
HIGH Z State on A₀–A₇, B₀–B₇
Pin Descriptions
Pin Names
Description
OE_n
T/R_n
A₀–A₃₁
B₀–B₃₁
Output Enable Input (Active LOW)
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
FBGA Pin Assignments
1
2
3
4
5
6
A
B₁
B₀ T/R₁ OE₁ A₀
A₁
B
B₃
B₂ GND GND A₂
A₃
C
B₅
B₄
V_CC V_CC
A₄
A₅
D
B₇
B₆ GND GND A₆
A₇
E
B₉
B₈ GND GND A₈
A₉
F
B₁₁ B₁₀ V_CC V_CC A₁₀ A₁₁
G
B₁₃ B₁₂ GND GND A₁₂ A₁₃
H
B₁₄ B₁₅ T/R₂ OE₂ A₁₅ A₁₄
J
B₁₇ B₁₆ T/R₃ OE₃ A₁₆ A₁₇
K
B₁₉ B₁₈ GND GND A₁₈ A₁₉
L
B₂₁ B₂₀ V_CC V_CC A₂₀ A₂₁
M
B₂₃ B₂₂ GND GND A₂₂ A₂₃
N
B₂₅ B₂₄ GND GND A₂₄ A₂₅
P
B₂₇ B₂₆ V_CC V_CC A₂₆ A₂₇
R
B₂₉ B₂₈ GND GND A₂₈ A₂₉
T
B₃₀ B₃₁ T/R₄ OE₄ A₃₁ A₃₀
Inputs
OE₂
L
L
H
T/R₂
L
H
X
Outputs
Bus B₈–B₁₅ Data to Bus A₈–A₁₅
Bus A₈–A₁₅ Data to Bus B₈–B₁₅
HIGH Z State on A₈–A₁₅, B₈–B₁₅
Inputs
OE₃
T/R₃
L
L
L
H
H
X
H = HIGH Voltage Level
L = LOW Voltage Level
Outputs
Bus B₁₆–B₂₃ Data to Bus A₁₆–A₂₃
Bus A₁₆–A₂₃ Data to Bus B₁₆–B₂₃
HIGH Z State on A₁₆–A₂₃, B₁₆–B₂₃
Inputs
OE₄
T/R₄
Outputs
L
L
Bus B₂₄–B₃₁ Data to Bus A₂₄–A₃₁
L
H
Bus A₂₄–A₃₁ Data to Bus B₂₄–B₃₁
H
X HIGH Z State on A₂₄–A₃₁, B₂₄–B₃₁
X = Immaterial (HIGH or LOW, inputs and I/O’s may not float)
Z = High Impedance
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