Features: • Octal bus interface• 3-State output buffer sink 64mA• 15mA source current• Guaranteed output skew less than 2.0ns (74F244B)• Reduced ground bounce (74F244B)• Reduced ICC (74F244B)• Reduced loading (74F244B IIL = 40mA)• Split lead frame of...
74F244B: Features: • Octal bus interface• 3-State output buffer sink 64mA• 15mA source current• Guaranteed output skew less than 2.0ns (74F244B)• Reduced ground bounce (74F244B)...
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(Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL |
PARAMETER |
RATING |
UNIT | |
VCC |
Supply voltage |
-0.5 to +7.0 |
V | |
VIN |
Input voltage |
-0.5 to +7.0 |
V | |
IIN |
Input current |
-30 to +5 |
mA | |
VOUT |
Voltage applied to output in high output state |
-0.5 to VCC |
V | |
IOUT |
Current applied to output in low output state |
128 |
mA | |
Tamb |
Operating free air temperature range | Commercial range |
0 to +70 |
|
Industrial range (74F244 only) |
-40 to +85 |
|||
Tstg |
Storage temperature range |
-65 to +150 |
The 74F244B is an octal buffer that is ideal for driving bus lines of buffer memory address registers. The outputs are all capable of sinking 64mA and sourcing up to 15mA, producing very good capacitive drive characteristics. The device features two output enables, OEa and OEb, each controlling four of the 3-State outputs.
The 74F244B is functionally equivalent to the 74F244. It has been designed to reduce effects of ground noise. Other advantages are noted in the features.