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74LS244 参数 Datasheet PDF下载

74LS244图片预览
型号: 74LS244
PDF下载: 下载PDF文件 查看货源
内容描述: 小功率肖特基 [LOW POWER SCHOTTKY]
分类和应用: 逻辑集成电路光电二极管驱动
文件页数/大小: 8 页 / 125 K
品牌: ONSEMI [ ON SEMICONDUCTOR ]
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SN74LS240 SN74LS244
Octal Buffer/Line Driver
with 3-State Outputs
The SN74LS240 and SN74LS244 are Octal Buffers and Line
Drivers designed to be employed as memory address drivers, clock
drivers and bus-oriented transmitters/receivers which provide
improved PC board density.
http://onsemi.com
Hysteresis at Inputs to Improve Noise Margins
3-State Outputs Drive Bus Lines or Buffer Memory Address
Registers
Input Clamp Diodes Limit High-Speed Termination Effects
GUARANTEED OPERATING RANGES
Symbol
V
CC
T
A
I
OH
Parameter
Supply Voltage
Operating Ambient
Temperature Range
Output Current – High
Min
4.75
0
Typ
5.0
25
Max
5.25
70
– 3.0
– 15
I
OL
Output Current – Low
24
Unit
V
°C
20
LOW
POWER
SCHOTTKY
mA
mA
mA
1
PLASTIC
N SUFFIX
CASE 738
20
1
SOIC
DW SUFFIX
CASE 751D
ORDERING INFORMATION
Device
SN74LS240N
SN74LS240DW
SN74LS244N
SN74LS244DW
Package
16 Pin DIP
16 Pin
16 Pin DIP
16 Pin
Shipping
1440 Units/Box
2500/Tape & Reel
1440 Units/Box
2500/Tape & Reel
©
Semiconductor Components Industries, LLC, 1999
1
December, 1999 – Rev. 6
Publication Order Number:
SN74LS240/D