5秒后页面跳转
54LS244FMQB PDF预览

54LS244FMQB

更新时间: 2024-02-28 12:12:18
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器逻辑集成电路
页数 文件大小 规格书
6页 142K
描述
Octal TRI-STATEE Buffers/Line Drivers/Line Receivers

54LS244FMQB 技术参数

生命周期:Obsolete零件包装代码:QLCC
包装说明:CERAMIC, LCC-20针数:20
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.48Is Samacsys:N
其他特性:MIN INPUT HYSTERESIS = 0.2V系列:LS
JESD-30 代码:S-CQCC-N20长度:8.89 mm
逻辑集成电路类型:BUS DRIVER位数:4
功能数量:2端口数量:2
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:TRUE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传播延迟(tpd):18 ns
认证状态:Not Qualified座面最大高度:1.905 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
Base Number Matches:1

54LS244FMQB 数据手册

 浏览型号54LS244FMQB的Datasheet PDF文件第2页浏览型号54LS244FMQB的Datasheet PDF文件第3页浏览型号54LS244FMQB的Datasheet PDF文件第4页浏览型号54LS244FMQB的Datasheet PDF文件第5页浏览型号54LS244FMQB的Datasheet PDF文件第6页 
August 1989  
54LS244/DM74LS244 Octal TRI-STATE  
Buffers/Line Drivers/Line Receivers  
É
Y
Typical I (sink current)  
OL  
General Description  
54LS  
74LS  
12 mA  
24 mA  
These buffers/line drivers are designed to improve both the  
performance and PC board density of TRI-STATE buffers/  
drivers employed as memory-address drivers, clock drivers,  
and bus-oriented transmitters/receivers. Featuring 400 mV  
of hysteresis at each low current PNP data line input, they  
provide improved noise rejection and high fanout outputs  
and can be used to drive terminated lines down to 133X.  
Y
Y
Typical I  
54LS  
74LS  
(source current)  
OH  
b
b
12 mA  
15 mA  
Typical propagation delay times  
Inverting 10.5 ns  
Noninverting 12 ns  
Y
Y
Typical enable/disable time 18 ns  
Typical power dissipation (enabled)  
Inverting 130 mW  
Noninverting 135 mW  
Features  
Y
TRI-STATE outputs drive bus lines directly  
Y
PNP inputs reduce DC loading on bus lines  
Y
Hysteresis at data inputs improves noise margins  
Connection Diagram  
Dual-In-Line Package  
TL/F/8442–1  
Order Number 54LS244DMQB, 54LS244FMQB, 54LS244LMQB,  
DM74LS244WM or DM74LS244N  
See NS Package Number E20A, J20A, M20B, N20A or W20A  
Function Table  
Inputs  
Output  
Y
G
A
L
L
L
H
X
L
H
Z
H
e
e
e
e
L
Low Logic Level  
High Logic Level  
H
X
Z
Either Low or High Logic Level  
High Impedance  
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.  
C
1995 National Semiconductor Corporation  
TL/F/8442  
RRD-B30M105/Printed in U. S. A.  

与54LS244FMQB相关器件

型号 品牌 获取价格 描述 数据表
54LS244L1MQB FAIRCHILD

获取价格

Bus Driver, 2-Func, 4-Bit, True Output, TTL, CQCC20,
54LS244LMQB NSC

获取价格

Octal TRI-STATEE Buffers/Line Drivers/Line Receivers
54LS244M/B2AJC MOTOROLA

获取价格

LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20
54LS245 NSC

获取价格

TRI-STATE Octal Bus Transceiver
54LS245/B2C ETC

获取价格

Single 8-bit Bus Transceiver
54LS245D2 ETC

获取价格

Octal bus transceiver
54LS245DM ETC

获取价格

Bus Transceiver
54LS245DMQB NSC

获取价格

TRI-STATE Octal Bus Transceiver
54LS245FMQB NSC

获取价格

TRI-STATE Octal Bus Transceiver
54LS245LMQB NSC

获取价格

TRI-STATE Octal Bus Transceiver