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參數資料
| 型號： | PI3B3244QE |
| 廠商： | Pericom Semiconductor Corp. |
| 英文描述： | 3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitch |
| 中文描述： | 3.3，熱插入，8位，2端口NanoSwitch |
| 文件頁數： | 1/5頁 |
| 文件大小： | 186K |
| 代理商： | PI3B3244QE |
1
PS8149F 08/25/04
BE
2
BE
1
1B
1
1B
0
1A
1
1A
0
1B
1
1B
0
1A
3
1A
2
2B
1
2B
0
2A
1
2A
0
2B
3
2B
2
2A
3
2A
2
B
A
BE
SW
SW
SW
SW
SW
SW
SW
SW
SW
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
BE1
1
A
0
2
B
3
1
A
1
2
B
2
1
A
2
2
B
1
1
A
3
2
B
0
GND
Vcc
BE
2
1
B
0
2
A
3
1
B
1
2
A
2
1
B
2
2
A
1
1
B
3
2
A
0
Description
Pericom Semiconductor’s PI3B series of logic circuits are produced
using the Company’s advanced sub-micron CMOS technology,
achieving industry leading performance.
The PI3B3244 features a set of 3.3V 8-bit bus switches, which is
pinout and function compatible with the P74FCT244T, 74F244, and
74ALS/AS/LS2448-bit drivers. Two enable signals (BEn) turn the
switches on similar to the enable signals of the 244. The bus switch
create no additional propagation delay or ground bounce noise.
Truth Table
(1)
Note:
1. H = High Voltage Level, L = Low Voltage Level
Block Diagram
Pin Description
Pin Name
BEn
A
0
–
7
B
0
–
7
GND
V
CC
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
Pin Configuration
8-Bit, 2-Port
NanoSwitch
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12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
Features
Near-Zero propagation delay
5-ohm switches connect inputs to outputs when enabled
Fast Switching Speed - 4.5ns max.
Ultra-Low Quiescent Power (0.2μA Typical)
– Ideally suited for notebook applications
Pin compatible with 74 series 244 logic devices
Packaging:
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 173-mil wide plastic TSSOP (L)
20-Pin
Q,L
1
E
B
2
E
B
B
1
,
A
1
B
2
,
A
2
H
H
t
n
o
c
D
t
n
o
c
D
L
H
B
1
=
A
1
t
n
o
c
D
H
L
t
n
o
c
D
B
2
=
A
2
L
L
B
1
=
A
1
B
2
=
A
2
相關PDF資料 |
PDF描述 |
|---|---|
| PI3B3251 | 3.3V 8:1 MUX /DEMUX BUS SWITCH |
| PI3B3251L | 3.3V 8:1 MUX /DEMUX BUS SWITCH |
| PI3B3251Q | 3.3V 8:1 MUX /DEMUX BUS SWITCH |
| PI3B3251W | 3.3V 8:1 MUX /DEMUX BUS SWITCH |
| PI3B3257 | 3.3V, Quad 2:1 Mux/Demux Bus Switch |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PI3B3244QEX | 功能描述:數字總線開關 IC 3.3V 8B Bus Switch RoHS:否 制造商:Texas Instruments 開關數量:24 傳播延遲時間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| PI3B3244QX | 制造商:Pericom Semiconductor Corporation 功能描述:Bus Switch 2-Element CMOS 8-IN 20-Pin QSOP T/R |
| PI3B3245 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Switch | 3.3V 8-Bit Bus Switch (FCT245 Pinout) |
| PI3B3245L | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:3.3V, Hot Insertion 8-Bit, 2-Port, NanoSwitch |
| PI3B3245LE | 功能描述:數字總線開關 IC 3.3V 8B Bus Switch RoHS:否 制造商:Texas Instruments 開關數量:24 傳播延遲時間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
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