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參數(shù)資料
| 型號(hào)： | PI3B3244QE |
| 廠商： | Pericom |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC 8-BIT BUS SW 2-PORT 20-QSOP |
| 標(biāo)準(zhǔn)包裝： | 55 |
| 類型： | 總線開關(guān) |
| 電路： | 4 x 1:1 |
| 獨(dú)立電路： | 2 |
| 電壓電源： | 單電源 |
| 電源電壓： | 3.3V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-QSOP |
| 包裝： | 管件 |
1
PS8149F
08/25/04
BE2
BE1
1B1
1B0
1A1
1A0
1B1
1B0
1A3
1A2
2B1
2B0
2A1
2A0
2B3
2B2
2A3
2A2
B
A
BE
SW
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
BE1
1
A0
2
B3
1
A1
2
B2
1
A2
2
B1
1
A3
2
B0
GND
Vcc
BE2
1
B0
2
A3
1
B1
2
A2
1
B2
2
A1
1
B3
2
A0
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
PinDescription
PinName
Description
BEn
Bus Enable Input (Active LOW)
A0–7
Bus A
B0–7
Bus B
GND
Ground
VCC
Power
PinConfiguration
PI3B3244
3.3V, Hot Insertion,
8-Bit, 2-Port NanoSwitch
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 (0.2A 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
B2
E
BB
1
,
A
1B
2
,
A
2
HH
t
c
e
n
o
c
s
i
Dt
c
e
n
o
c
s
i
D
LH
B
1
=
A
1t
c
e
n
o
c
s
i
D
HL
t
c
e
n
o
c
s
i
DB
2
=
A
2
LL
B
1
=
A
1B
2
=
A
2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI3B3244QEX | 功能描述:數(shù)字總線開關(guān) IC 3.3V 8B Bus Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)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(shù)字總線開關(guān) IC 3.3V 8B Bus Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)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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