PI5C34X245(1998) Просмотр технического описания (PDF) - Pericom Semiconductor
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PI5C34X245 Datasheet PDF : 3 Pages
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PI5C34X245
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PI5C34X245 111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222
32-Bit, 2-Port Bus Switch
Product Features
• Near-zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2µA typical)
– Ideally suited for notebook applications
• Pin compatible with QS34X245
• Industrial operating temperature: –40°C to +85°C
• Packages available:
– 80-pin 150 mil wide plastic BQSOP (B)
Logic Block Diagram
A0
B0
A7
B7
BE1
A8
B8
A15
B15
BE2
A16
B16
A23
B23
BE3
A24
B24
A31
B31
BE4
Truth Table(1)
Function
BEn
Disconnect
H
Connect
L
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
A0–31
Hi-Z
B0–31
Product Description
Pericom Semiconductor’s PI5C series of logic circuits are pro-
duced in the Company’s advanced 0.6 micron CMOS technology.
The PI5C34X245 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.
Product Pin Configuration
NC
A0
A1
A2
A3
A4
A5
A6
A7
GND
NC
A8
A9
A10
A11
A12
A13
A14
A15
GND
NC
A16
A17
A18
A19
A20
A21
A22
A23
GND
NC
A24
A25
A26
A27
A28
A29
A30
A31
GND
1
80
2
79
3
78
4
77
5
76
6
75
7
74
8
73
9
72
10
71
11
70
12
69
13
68
14
67
15
66
16
65
17
64
18
63
19
62
20
61
21
60
22 80-Pin 59
23 B80 58
24
57
25
56
26
55
27
54
28
53
29
52
30
51
31
50
32
49
33
48
34
47
35
46
36
45
37
44
38
43
39
42
40
41
VCC
BE1
B0
B1
B2
B3
B4
B5
B6
B7
VCC
BE2
B8
B9
B10
B11
B12
B13
B14
B15
VCC
BE3
B16
B17
B18
B19
B20
B21
B22
B23
VCC
BE4
B24
B25
B26
B27
B28
B29
B30
B31
Product Pin Description
Pin Name I/O
BEn
I
A0-A31
I/O
B0-B31
I/O
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
PS7058B 08/03/98
1
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