74lvth32952 Fairchild Semiconductor, 74lvth32952 Datasheet - Page 2

• Manufacturer Part Number: 74lvth32952
• Description: Low Voltage 32-bit Registered Transceiver With 3-state Outputs Preliminary
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
Connection Diagram
Truth Table
(Note 2)
H
L
X

Z
NC
B
Note 2: A to B data flow shown; B to A flow control is the same, but uses
OEBA
0
A CPAB
X
X
H
H
X
X
X
X
L
L
LOW Voltage Level
Output High Impedance
HIGH Voltage Level
Immaterial
State established by last valid CP
LOW-to-HIGH Transition.
No Change (state established by last valid CP)
n
, CPBA




H
H
X
X
L
L
n
n
Inputs
and CEB
CEA
H
H
X
X
X
X
L
L
L
L
n
n
.
(Top Thru View)
OEAB
H
H
H
H
H
L
L
L
L
L
n
Internal Register Output
Value
NC
NC
NC
NC
NC
NC
H
H
L
L
B
B
B
B
H
Z
L
Z
Z
Z
Z
0
0
0
2
Pin Descriptions
Pin Assignments for FBGA
A
B
CPAB
CEA
OEAB
0
0
–A
–B
W
G
M
A
B
C
D
E
H
K
N
P
R
U
V
F
J
L
T
n
31
31
Pin Names
, CEB
n
n
, CPBA
, OEBA
A
A
A
A
NC
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1
n
10
12
13
15
16
18
20
22
24
26
28
29
31
0
2
4
6
8
n
n
CPAB
CEA
CEA
CEA
CEA
A
A
A
A
A
A
A
A
A
A
A
A
A
A
2
14
17
19
21
23
25
27
30
11
1
3
5
7
9
1
2
3
4
3
Data Register A Inputs
B-Register 3-STATE Outputs
Data Register B Inputs
A-Register 3-STATE Outputs
Clock Pulse Inputs
Clock Enable
Output Enable Inputs
OEAB
OEAB
OEAB
OEAB
CPAB
CPAB
CPAB
V
V
V
V
GND
GND
GND
GND
GND
GND
GND
GND
CC1
CC1
CC2
CC2
3
1
2
4
1
2
3
4
CPBA
OEBA
CPBA
OEBA
OEBA
CPBA
OEBA
Description
GND
V
GND
GND
V
GND
GND
V
GND
GND
V
GND
CC1
CC1
CC2
CC2
4
1
2
4
1
2
3
4
Preliminary
CPBA
CEB
CEB
CEB
CEB
B
B
B
B
B
B
B
B
B
B
B
B
B
B
5
14
17
19
21
23
25
27
30
11
1
3
5
7
9
1
2
3
4
3
B
B
B
B
NC
B
B
B
B
B
B
B
B
B
B
B
B
B
B
6
10
12
13
15
16
18
20
22
24
26
28
29
31
0
2
4
6
8