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PDF PI5C16245 Data sheet ( Hoja de datos )
| Número de pieza | PI5C16245 | |
| Descripción | 2-Port Bus Switch | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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PI5C16245
PI5C162245 (25-Ohm)
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16-Bit, 2-Port Bus Switch
Features:
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2 μA typical) – Ideally
suited for notebook applications
• Pin compatible with 74 series16245
• Industrial operating temperature: –40°C to +85°C
• Packages (Pb-free & Green available):
– 48-pin 240-mil wide thin plastic TSSOP (A)
– 48-pin 150-mil wide plastic BQSOP (B)
– 48-pin 300-mil wide plastic SSOP (V)
Block Diagram
Description:
Pericom Semiconductor’s 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 propagation delay or additional ground bounce noise.
The PI5C162245 device has a built-in 25-ohm series resistor to reduce
noise due to reflections, thus eliminating the need for an external
terminating resistor.
Pin Configuration
1A0
1A7
1BE
2A0
2A7
2BE
Truth Table(1)
Function
Disconnect
Connect
nBE nA0–7
H Hi-Z
L nB0–7
Note: 1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1B0
1B7
2B0
2B7
NC
1B0
1B1
GND
1B2
1B3
VCC
1B4
1B5
GND
1B6
1B7
2B0
2B1
GND
2B2
2B3
VCC
2B4
2B5
GND
2B6
2B7
NC
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 1BE
47 1A0
46 1A1
45 GND
44 1A2
43 1A3
42 VCC
41 1A4
40 1A5
39 GND
38 1A6
37 1A7
36 2A0
35 2A1
34 GND
33 2A2
32 2A3
31 VCC
30 2A4
29 2A5
28 GND
27 2A6
26 2A7
25 2BE
Pin Description
Pin Name
nBE
nA0-nA7
nB0-nB7
I/O
I
I/O
I/O
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
1 PS7025D 01/24/06
1 page  
PI5C16245/162245
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Packaging Mechanical: 48-pin TSSOP (A)
48
1
.488 12.4
.496 12.6
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.0197
BSC
0.50
.236
.244
6.0
6.2
.047
1.20 Max
SEATING PLANE
.007
.010
.002
.006
0.05
0.17 0.15
0.27
0.45 .018
0.75 .030
.319
8.1
BSC
.004 0.09
.008 0.20
Packaging Mechanical: 48-pin SSOP (V)
48
1
.620
.630
15.75
16.00
.025 BSC
0.635
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.395
.420
10.03
.291 10.67
.299
7.39
7.59
Gauge Plane
.010 0.25
.02 0.51
.04 1.01
.008
0.20
Nom.
.015 0.381 x 45˚
.025 0.635
.008 0.20
.0135 0.34
0-8˚
.110 2.79 Max
.008 0.20
.016 0.40
5 PS7025D 01/24/06
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PI5C16245.PDF ] | |
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