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