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74F573LMQB PDF预览

74F573LMQB

更新时间: 2024-02-06 15:24:05
品牌 Logo 应用领域
美国国家半导体 - NSC 锁存器
页数 文件大小 规格书
8页 168K
描述
Octal D-Type Latch with TRI-STATE Outputs

74F573LMQB 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:SOP, SOP20,.3Reach Compliance Code:compliant
风险等级:5.84JESD-30 代码:R-PDSO-G20
逻辑集成电路类型:D LATCH最大I(ol):0.024 A
位数:8功能数量:1
端子数量:20最高工作温度:70 °C
最低工作温度:输出特性:3-STATE
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP20,.3封装形状:RECTANGULAR
封装形式:SMALL OUTLINE包装方法:TAPE AND REEL
电源:5 V最大电源电流(ICC):55 mA
Prop。Delay @ Nom-Sup:8 ns认证状态:Not Qualified
子类别:FF/Latches标称供电电压 (Vsup):5 V
表面贴装:YES技术:TTL
温度等级:COMMERCIAL端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
Base Number Matches:1

74F573LMQB 数据手册

 浏览型号74F573LMQB的Datasheet PDF文件第1页浏览型号74F573LMQB的Datasheet PDF文件第3页浏览型号74F573LMQB的Datasheet PDF文件第4页浏览型号74F573LMQB的Datasheet PDF文件第5页浏览型号74F573LMQB的Datasheet PDF文件第6页浏览型号74F573LMQB的Datasheet PDF文件第7页 
Unit Loading/Fan Out  
54F/74F  
Pin Names  
Description  
U.L.  
Input I /I  
IH IL  
Output I /I  
HIGH/LOW  
OH OL  
b
20 mA/ 0.6 mA  
b
20 mA/ 0.6 mA  
D D  
0
Data Inputs  
1.0/1.0  
1.0/1.0  
7
LE  
Latch Enable Input (Active HIGH)  
TRI-STATE Output Enable Input  
(Active LOW)  
OE  
b
1.0/1.0  
20 mA/ 0.6 mA  
b
O O  
0
TRI-STATE Latch Outputs  
150/40(33.3)  
3 mA/24 mA (20 mA)  
7
Functional Description  
The ’F573 contains eight D-type latches with 3-state output  
Function Table  
buffers. When the Latch Enable (LE) input is HIGH, data on  
the D inputs enters the latches. In this condition the latch-  
n
Inputs  
LE  
Outputs  
O
es are transparent, i.e., a latch output will change state each  
time its D input changes. When LE is LOW the latches store  
the information that was present on the D inputs a setup  
time preceding the HIGH-to-LOW transition of LE. The 3-  
state buffers are controlled by the Output Enable (OE) input.  
When OE is LOW, the buffers are in the bi-state mode.  
When OE is HIGH the buffers are in the high impedance  
mode but this does not interfer with entering new data into  
the latches.  
OE  
D
L
L
H
H
L
H
L
H
L
L
X
X
O
0
H
X
Z
e
e
e
H
L
HIGH Voltage Level  
LOW Voltage Level  
Immaterial  
X
O
e
Value stored from previous clock cycle  
0
Logic Diagram  
TL/F/9566–5  
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.  
2

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