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SN54F251BFK PDF预览

SN54F251BFK

更新时间: 2024-11-05 22:27:35
品牌 Logo 应用领域
德州仪器 - TI 复用器输出元件
页数 文件大小 规格书
7页 101K
描述
1-OF-8 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

SN54F251BFK 技术参数

生命周期:Obsolete零件包装代码:QLCC
包装说明:QCCN,针数:20
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.36系列:F/FAST
JESD-30 代码:S-CQCC-N20长度:8.89 mm
负载电容(CL):50 pF逻辑集成电路类型:MULTIPLEXER
功能数量:1输入次数:8
输出次数:1端子数量:20
最高工作温度:125 °C最低工作温度:-55 °C
输出特性:3-STATE输出极性:COMPLEMENTARY
封装主体材料:CERAMIC, METAL-SEALED COFIRED封装代码:QCCN
封装形状:SQUARE封装形式:CHIP CARRIER
最大电源电流(ICC):22 mA传播延迟(tpd):10.9 ns
认证状态:Not Qualified座面最大高度:2.03 mm
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:TTL温度等级:MILITARY
端子形式:NO LEAD端子节距:1.27 mm
端子位置:QUAD宽度:8.89 mm

SN54F251BFK 数据手册

 浏览型号SN54F251BFK的Datasheet PDF文件第2页浏览型号SN54F251BFK的Datasheet PDF文件第3页浏览型号SN54F251BFK的Datasheet PDF文件第4页浏览型号SN54F251BFK的Datasheet PDF文件第5页浏览型号SN54F251BFK的Datasheet PDF文件第6页浏览型号SN54F251BFK的Datasheet PDF文件第7页 
SN54F251B, SN74F251B  
1-OF-8 DATA SELECTORS/MULTIPLEXERS  
WITH 3-STATE OUTPUTS  
SDFS066A – MARCH 1987 – REVISED OCTOBER 1993  
SN54F251B . . . J PACKAGE  
SN74F251B . . . D OR N PACKAGE  
(TOP VIEW)  
3-State Versions of SN54F151B and  
SN74F151B  
3-State Outputs Interface Directly With  
System Bus  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
D3  
D2  
D1  
D0  
Y
W
G
GND  
V
CC  
Performs Parallel-to-Serial Conversion  
D4  
D5  
D6  
D7  
A
Complementary Outputs Provide True and  
Inverted Data  
Package Options Include Plastic  
Small-Outline Packages, Ceramic Chip  
Carriers, and Standard Plastic and Ceramic  
300-mil DIPs  
B
C
description  
SN54F251B . . . FK PACKAGE  
(TOP VIEW)  
These data selectors/multiplexers contain full  
binary decoding to select one of eight data  
sources  
and  
feature  
strobe-controlled  
complementary outputs. The 3-state outputs can  
interface with and drive data lines of bus-  
organized systems. When the strobe (G) input is  
high, both outputs are in a high-impedance state  
in which both the upper and lower transistors of  
each totem-pole output are off, and the output  
neither drives nor loads the bus significantly.  
3
2
1
20 19  
18  
4
5
6
7
8
D5  
D6  
NC  
D7  
A
D1  
D0  
NC  
Y
17  
16  
15  
14  
W
9 10 11 12 13  
The SN54F251B is characterized for operation  
over the full military temperature range of 55°C  
to 125°C. The SN74F251B is characterized for  
operation from 0°C to 70°C.  
NC – No internal connection  
FUNCTION TABLE  
INPUTS  
SELECT  
OUTPUTS  
STROBE  
G
C
X
L
B
X
L
A
X
L
Y
W
Z
H
L
L
L
L
L
L
L
L
Z
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
L
L
H
L
L
H
H
L
L
H
L
H
H
H
H
L
H
L
H
H
H
D0, D1, . . . D7 = the level of the respective D input.  
Copyright 1993, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
2–1  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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