參數(shù)資料
型號(hào): MC74LCX244MELG
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: Low−Voltage CMOS Octal Buffer With 5 V−Tolerant Inputs and Outputs (3−State, Non−Inverting)
中文描述: LVC/LCX/Z SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: LEAD FREE, EIAJ, SO-20
文件頁(yè)數(shù): 2/9頁(yè)
文件大?。?/td> 105K
代理商: MC74LCX244MELG
MC74LCX244
http://onsemi.com
2
Figure 1. Pinout: 20Lead
(Top View)
PIN NAMES
FUNCTION
Output Enable Inputs
Data Inputs
3State Outputs
PINS
nOE
1Dn, 2Dn
1On, 2On
TRUTH TABLE
OUTPUTS
INPUTS
L
L
H
1OE
2OE
1Dn
2Dn
L
H
X
L
H
Z
H = High Voltage Level
L = Low Voltage Level
Z = High Impedance State
X = High or Low Voltage Level and Transitions are Acceptable
For I
CC
reasons, DO NOT FLOAT Inputs
Figure 2. Logic Diagram
19
20
18
17
16
15
14
2
1
3
4
5
6
7
V
CC
13
8
12
9
11
10
2OE
1O0
2D0
1O1
2D1
1O2
2D2
1O3
2D3
1OE
1D0
2O0
1D1
2O1
1D2
2O2
1D3
2O3
GND
1OE
1
1D0
2
1O0
18
1D1
4
1O1
16
1D2
6
1O2
14
1D3
8
1O3
12
2OE
19
2D0
17
2O0
3
2D1
15
2O1
5
2D2
13
2O2
7
2D3
11
2O3
9
1On, 2On
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MC74LCX245DT 功能描述:總線收發(fā)器 Low Voltage CMOS RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
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MC74LCX245DTR2 功能描述:總線收發(fā)器 Low Voltage CMOS RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
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