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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 Pin compatible with 74 series16245
聲 Industrial operating temperature: 聳40擄C to +85擄C
聲 Packages available:
聳 48-pin 240 mil wide thin plastic TSSOP (A)
聳 48-pin 150 mil wide plastic BQSOP (B)
聳 48-pin 300 mil wide plastic SSOP (V)
Product Features
Product Description
Pericom Semiconductor聮s PI5C series of logic circuits are produced
using the Company聮s advanced 0.6 micron CMOS technology.
The PI5C16245 and PI5C162245 are 16-bit, 2-port bus switches
that are pin compatible with the 74 series 16245 16-bit transceiver.
Two enable signals (nBE) turn the switches on, similar to the enable
signals of the 16245. The bus switch creates no additional
propagational delay or additional ground bounce noise.
The PI5C162245 device has a built-in 25-ohm series resistor to reduce
reflection noise, thus eliminating the need for an external terminating
resistor.
Logic Block Diagram
1
A
0
1
B
0
Product Pin Configuration
NC
1
B
0
1
B
1
GND
1
B
2
1
B
3
1
A
7
1
B
7
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
38
48-Pin
37
A,B,V
36
35
34
33
32
31
30
29
28
27
26
25
1
BE
1
A
0
1
A
1
GND
1
A
2
1
A
3
1
BE
2
A
0
2
B
0
2
A
7
2
B
7
2
BE
Truth Table
(1)
Function
Disconnect
Connect
nBE
H
L
nA0-7
Hi- Z
nB0- 7
V
CC
1
B
4
1
B
5
GND
1
B
6
1
B
7
2
B
0
2
B
1
GND
2
B
2
2
B
3
V
CC
2
B
4
2
B
5
GND
2
B
6
2
B
7
NC
V
CC
1
A
4
1
A
5
GND
1
A
6
1
A
7
2
A
0
2
A
1
GND
2
A
2
2
A
3
V
CC
2
A
4
2
A
5
GND
2
A
6
2
A
7
2
BE
Product Pin Description
Pin Name
nBE
nA
0
-nA
7
nB
0
-nB
7
1
Note:
1. H = High Voltage Level
L
= Low Voltage Level
Hi-Z = High Impedance
I/O
I
I/O
I/O
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
PS7025B
06/21/00
1
2
3
4
5
