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PI5C34X2245
Product Features
聲
聲
聲
聲
聲
32-Bit, 2-Port Bus Switch
with 25-Ohm Series Resistor
Near-zero propagation delay
25-ohm series resistor termination
5-ohm switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra-low quiescent power (0.2碌A(chǔ) typical)
聳 Ideally suited for notebook applications
聲 Pin compatible with QS34X245
聲 Industrial operating temperature: 聳40擄C to +85擄C
聲 Packages available:
聳 80-pin 150 mil wide plastic BQSOP (B)
聳 80-pin plastic very Fine Pitch dual flat No lead (DFN) Z)
Product Description
Pericom Semiconductor聮s PI5C series of logic circuits are produced
using the Company聮s advanced submicron CMOS technology.
The PI5C34X2245 is a 32-bit, 2-port bus switch. Four enable signals
(BEn) turn the switches on. The bus switch creates no
additional propagational delay or additional ground bounce noise.
The device has a built-in 25-ohm resistor to reduce noise resulting
from reflection, thus eliminating the need for an external
terminating resistor.
Product Pin Configuration
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
NC
A
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
V
CC
BE1
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
V
CC
BE2
B
8
B
9
B
10
B
11
B
12
B
13
B
14
B
15
V
CC
BE3
B
16
B
17
B
18
B
19
B
20
B
21
B
22
B
23
V
CC
BE4
B
24
B
25
B
26
B
27
B
28
B
29
B
30
B
31
Logic Block Diagram
A0
B0
A7
BE1
A8
B7
B8
A
9
A
10
A
11
A
12
A
13
A
14
A
15
GND
NC
A
16
A
17
A
18
A
19
A
20
A
21
A
22
A
23
GND
NC
A
24
A
25
A
26
A
27
A
28
A
29
A
30
A
31
GND
A15
BE2
A16
B15
B16
80-Pin
62
B, Z
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
A23
BE3
A24
B23
B24
A31
BE4
B31
Truth Table
(1)
Function
Disconnect
Connect
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
BEn
H
L
A0 聳 31
Hi- Z
B
0 聳 31
Pin Name
BEn
A0- A31
B0- B31
1
Product Pin Description
I/O
I
I/O
I/O
D e s cription
Bus Enable Input (Active LO W)
Bus A
Bus B
PS8196A
08/06/01
1
2
3
4
