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PI5C33X257
24:12 MUX/DEMUX BusSwitch
PI5C33X257
24:12 MUX/DEMUX BusSwitch
Product Features
鈥?Near zero propagation delay
鈥?5鈩?switches connect inputs to outputs
鈥?Direct bus connection when switches are ON
鈥?Ultra Low Quiescent Power (0.2碌A Typical)
鈥?Ideally suited for notebook applications
鈥?Packages available:
鈥?8-pin 150 mil wide plastic QSOP (B)
Product Description
Pericom Semiconductor鈥檚 PI5C series of logic circuits are produced in
the Company鈥檚 advanced 0.8 micron CMOS technology, achieving
industry leading performance.
The PI5C33X257 is a 24:12 multiplexer/demultiplexer with three-
state outputs. Inputs can be connected to outputs with low on
resistance (5鈩? with no additional ground bounce noise or
propagation delay.
Truth Table
(1)
En
H
L
L
Sn
X
L
H
YA
2
Hi-Z
IA0
IA1
YB
2
Hi-Z
IB0
IB1
YC
2
Hi-Z
IC0
IC1
YD
2
Hi-Z
ID0
ID1
Function
Disable
S=0
S=1
Logic
Block Diagram
IA
0
IA
1
IB
0
IB
1
IC
0
IC
1
ID
0
ID
1
Notes:
1. H = High Voltage Level
L = Low Voltage Level
2. n = 0 YA, YB, YC, YD
n = 1 YE, YF, YG, YH
n = 2 YI, YJ, YK, YL
E
0
S
0
48-Pin Product Configura-
tion
S
0
IA
0
IA1
YA
IB
0
IB1
YB
GND
S
1
IE
0
IE1
YE
IF
0
IF1
YF
GND
S
2
II
0
II1
YI
IJ
0
IJ
1
YJ
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
V
CC
E
0
ID
0
ID
1
YD
IC
0
IC
1
YC
V
CC
E
1
IH
0
IH
1
YH
IG
0
IG
1
YG
V
CC
E
2
IL
0
IL
1
YL
IK
0
IK1
YK
S
2
E
2
II
0
S
1
E
1
IE
0
YA
IE
1
IF
0
YB
IF
1
IG
0
YC
IG
1
IH
0
YD
IH
1
48-Pin
B
38
37
36
35
34
33
32
31
30
29
28
27
26
25
YE
YF
YG
YH
II
1
IJ
0
IJ
1
IK
0
IK
1
IL
0
IL
1
YI
YJ
YK
YL
188
PS8114 04/24/97
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