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PI5C33X257
24:12 MUX/DEMUX BusSwitch
PI5C33X257
24:12 MUX/DEMUX BusSwitch
Product Features
聲 Near zero propagation delay
聲 5ohm switches connect inputs to outputs
聲 Direct bus connection when switches are ON
聲 Ultra Low Quiescent Power (0.2碌A(chǔ) Typical)
聳 Ideally suited for notebook applications
聲 Packages available:
聳48-pin 150 mil wide plastic BQSOP (B)
Product Description
Pericom Semiconductor聮s PI5C series of logic circuits are produced in
the Company聮s advanced submicron 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 (5ohm) 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 Configuration
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
1
PS8114
01/19/01
1
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