1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
Features
• Near-Zero propagation delay
• 4-ohm switches connect inputs to outputs
• Direct bus connection when switches are ON
• Undershoot protection to –2V (Data Inputs Only)
• Pin compatible with 74 series 253 logic devices
• Packaging (Pb-free & Green available):
Block Diagram
Pin Description
– 16-pin 173-mil wide plastic TSSOP (L)
IB
IB
IB
IB
IA
IA
IA
IA
3
2
1
0
3
2
1
0
09-0005
P
1
n i
E
A
Y
V
G
, A
, A
S
N
N
0
C
N
1 ,
1 -
a
E
Y
C
D
B
m
B
B
N
e
EA
EB
E
e S
D
D
P
r G
S
n
o
a
a
b a
e l
u o
w
a t
a t
0
t c
r e
e l
d n
n I
O
n I
S
u p
t u
u p
u
u p
S
D
s t
p p
1
s t
e
s t
y l
c s
P
i r
n i
t p
o i
n
YB
YA
1
Description
Pericom Semiconductor’s PI5C3253C is a Dual 4:1 multiplexer/
demultiplexer with three-state outputs that is pinout compatible with
the PI74FCT253T. Inputs can be connected to outputs with low On-
Resistance (5-ohm) with no additional ground bounce noise or
propagation delay.
Pin Configuration
Truth Table
Note: 1. H = High Logic Voltage Level
E
H
X
L
L
L
L
A
E
a n
b
e l
E
X
H
L
L
L
L
L = Low Logic Voltage Level
Hi-Z = High Impedance
B
GND
Dual 4:1 Mux/DeMux Bus Switch
IA
YA
(1)
IA
IA
IA
EA
S
with –2V Undershoot Protection
1
S
X
X
H
H
L
L
0
1
3
2
1
e S
e l
t c
S
X
X
H
H
L
L
1
2
3
4
5
6
7
8
0
i H
A I
A I
A I
A I
Y
X
C
A
Z -
0
1
2
3
a h
n
10
16
15
13
12
11
14
n
i H
9
l e
B I
B I
B I
B I
Y
X
Z -
B
0
1
2
3
PI5C3253C
S
S
S
S
D
D
V
EB
S
IB
IB
IB 1
IB
YB
PS8490C
1
1
1
1
s i
s i
0 -
0 -
0 -
0 -
CC
0
b a
b a
3
2
0
F
e l
e l
=
=
=
=
u
n
0
1
2
2
A
B
t c
o i
n
11/16/09