參數(shù)資料
型號: PI5C3244LE
廠商: Pericom
文件頁數(shù): 1/5頁
文件大小: 0K
描述: IC 8-BIT BUS SW 2PORT 20-TSSOP
產(chǎn)品變化通告: Product Discontinuation 25/Apr/2012
標(biāo)準(zhǔn)包裝: 74
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
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 管件
1
www.pericom.com
PS8140F
10/12/10
All trademarks are property of their respective owners.
PI5C3244
Block Diagram
1B0
1A0
1B1
1A1
1B2
1A2
1B3
1A3
BE1
2B0
2A0
2B1
2A1
2B2
2A2
2B3
2A3
BE2
Pin Configuration
VCC
BE1
1
20
2
19
1
B0
1
A0
3
18
2
A3
2
B3
4
17
1
B1
1
A1
5
16
2
A2
2
B2
6
15
1
B2
1
A2
7
14
2
A1
2
B1
8
13
1
B3
1
A3
9
12
2
A0
2
B0
10
11
GND
Description
Pericom Semiconductor’s PI5C3244 features a set of eight bus
switches which is pinout and function compatible with the PI74F-
CT244T, 74F244, and 74ALS/AS/LS 244 8-bit drivers. Two enable
signals (BEn) turn the switches on similar to the enable signals of
the 244. The bus switch creates no additional propagation delay
or ground bounce noise.
Features
Near-Zero propagation delay
5-ohm switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra Low Quiescent Power (0.2μA typical)
à
Ideally suited for notebook applications
Pin compatible with 74 Series 244 logic devices
Packaging (Pb-free & Green):
à
20-pin 173-mil wide plastic TSSOP (L)
à
20-pin 150-mil wide plastic QSOP (Q)
8-Bit, 2-Port Bus Switch
Pin Description
Pin Name
Description
BEn
Bus Enable Input (Active LOW)
A0-A3
Bus A
B0-B3
Bus B
GND
Ground
VCC
Power
Truth Table(1)
BE1
BE2
1A, 1B
2A, 2B
H
Disconnect
L
H
1A = 1B
Disconnect
H
L
Disconnect
2A = 2B
L
1A = 1B
2A = 2B
Note: 1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
11-0025
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