 Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1 Publication Order Number:
SN74LS251/D
C0083C0078C0055C0052C0076C0083C0050C0053C0049
C0056C0045C0073C0110C0112C0117C0116 C0077C0117C0108C0116C0105C0112C0108C0101C0120C0101C0114
C0119C0105C0116C0104 C0051C0045C0083C0116C0097C0116C0101 C0079C0117C0116C0112C0117C0116C0115
The TTL/MSI SN74LS251 is a high speed 8-Input Digital
Multiplexer. It provides, in one package, the ability to select one bit of
data from up to eight sources. The LS251 can be used as a universal
function generator to generate any logic function of four variables.
Both assertion and negation outputs are provided.
• Schottky Process for High Speed
• Multifunction Capability
• On-Chip Select Logic Decoding
• Inverting and Non-Inverting 3-State Outputs
• Input Clamp Diodes Limit High Speed Termination Effects
GUARANTEED OPERATING RANGES
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage 4.75 5.0 5.25 V
T
A
Operating Ambient
Temperature Range
0 25 70 °C
I
OH
Output Current – High –2.6 mA
I
OL
Output Current – Low 24 mA
LOW
POWER
SCHOTTKY
Device Package Shipping
ORDERING INFORMATION
SN74LS251N 16 Pin DIP 2000 Units/Box
SN74LS251D 16 Pin
SOIC
D SUFFIX
CASE 751B
http://onsemi.com
2500/Tape & Reel
PLASTIC
N SUFFIX
CASE 648
16
1
16
1