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PI3C34X245 の電気的特性と機能

PI3C34X245のメーカーはPericom Semiconductor Corporationです、この部品の機能は「High Bandwidth Hot Insertion 32-Bit 2-Port Bus Switch」です。


製品の詳細 ( Datasheet PDF )

部品番号 PI3C34X245
部品説明 High Bandwidth Hot Insertion 32-Bit 2-Port Bus Switch
メーカ Pericom Semiconductor Corporation
ロゴ Pericom Semiconductor Corporation ロゴ 




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PI3C34X245 Datasheet, PI3C34X245 PDF,ピン配置, 機能
Features
ÎÎNear-Zero propagation delay
ÎÎ5-ohm switches connect inputs to outputs
ÎÎ2.5V Supply Voltage Operation
ÎÎPermits Hot Insertion
ÎÎCapable of Hot-Swapping
ÎÎ5V I/O Tolerant
ÎÎHigh Bandwidth Operation (>400 MHz)
ÎÎPackaging (Pb-free & Green):
àà 80-pin 150-mil wide plastic BQSOP (B)
Block Diagram
A0
B0
A7 B7
BE1
A8 B8
A15 B15
BE2
A16 B16
A23 B23
BE3
A24 B24
A31 B31
BE4
Pin Description
Pin Name
BEn
A0 – A31
B0 – B31
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
All trademarks are property of their respective owners.
13-0159
PI3C34X245
2.5V/3.3V, High Bandwidth, Hot Insertion
32-Bit, 2-Port, Bus Switch
Description
Pericom Semiconductor’s PI3C34X245 is a 2.5V or 3.3V, 32-bit,
2-port bus switch designed with a low On-Resistance (5-ohms)
allowing inputs to be connected directly to outputs. The bus
switch creates no additional propagational delay or additional
ground bounce noise. The switches are turned ON by the Bus En-
able (BE) input signal. It is very useful in switching signals that
have high bandwidth (>400 MHz).
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
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 VCC
79 BE1
78 B0
77 B1
76 B2
75 B3
74 B4
73 B5
72 B6
71 B7
70 VCC
69 BE2
68 B8
67 B9
66 B10
65 B11
64 B12
63 B13
62 B14
61 B15
60 VCC
59 BE3
58 B16
57 B17
56 B18
55 B19
54 B20
53 B21
52 B22
51 B23
50 VCC
49 BE4
48 B24
47 B25
46 B26
45 B27
44 B28
43 B29
42 B30
41 B31
1 www.pericom.com PS8429F 10/23/13

1 Page





PI3C34X245 pdf, ピン配列
PI3C34X245
2.5V/3.3V, High Bandwidth, Hot Insertion,
32-Bit, 2-Port Bus Switch
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min Typ (2) Max
ICC
ΔICC
Quiescent Power Supply
Current
Supply Current per
VCC = Max.
Input HIGH
VIN = GND or VCC
VIN = 3.0V(3)
1.0 2.0
2.5
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per driven input (control input only); A and B pins do not contribute to ΔICC.
Units
mA
Switching Characteristics over 3.3V Operating Range
Parameters
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Description
Propagation Delay(2,3)
Ax to Bx
Bus Enable Time
BE to Ax or Bx
Bus Disable Time
BE to Ax or Bx
Test Conditions (1)
CL = 50 pF
RL = 500Ω
CL = 50 pF
RL = 500Ω
R = 500Ω
Com.
Min Max
0.25
1.5 6.5
1.5 5.5
Units
ns
Switching Characteristics over 2.5V Operating Range
Com.
Parameters Description
Test Conditions (1)
Min Max Units
tPLH Propagation Delay(2,3) CL = 50 pF
tPHL Ax to Bx
RL = 500Ω
0.25
tPZH
tPZL
tPHZ
tPLZ
Bus Enable Time
BE to Ax or Bx
Bus Disable Time
BE to Ax or Bx
CL = 50 pF
RL = 500Ω
R = 500Ω
1.5 9.8 ns
1.5 8.3
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load ca-
pacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much smaller
than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus
switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load
on the driven side.
All trademarks are property of their respective owners.
13-0159
3
www.pericom.com PS8429F 10/23/13


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部品番号部品説明メーカ
PI3C34X245

High Bandwidth Hot Insertion 32-Bit 2-Port Bus Switch

Pericom Semiconductor Corporation
Pericom Semiconductor Corporation


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