N74F182N

The N74F182N is a kind of high speed carry look-ahead generator. N74F182N accepts up to four pairs of active-Low Carry Propagate (P0, P1, P2, P3) and Carry Generate (G0, G1, G2, G3) signals and an active-High Carry input (Cn) and provides anticipated active-High carries (Cn+x, Cn+y, Cn+z) across four groups of binary adders. The N74F182N also has active-Low Carry Propagate (P) Carry Generate (G) outputs which may be used for further levels of look-ahead. In addition, it can be used with binary ALUs in an active-Low or active-High input operand mode. The connections to and from the ALU to the carry look-ahead generator are identical in both cases.

There are some features of N74F182N as follows: (1)Provides carry look-ahead across a group of four ALUs; (2)Multi-level look-ahead for high speed arithmetic operation over long word lengths.

Then is about the absolute maximum ratings of N74F182N: (1)VCC, Supply voltage: 0.5 to +7.0 V; (2)VIN, Input voltage: 0.5 to +7.0 V; (3)IIN, Input current: 30 to +5 mA; (4)VOUT, Voltage applied to output in high output state: 0.5 to VCC V; (5)IOUT, Current applied to output in low output state: 48 mA; (6)Tamb, Operating free air temperature range: 0 to +70; (7)Tstg, Storage temperature range: 65 to +150.

The last one is about the recommended operating conditions of N74F182N: (1)VCC, Supply voltage: 4.5 V min, 5.0 V typ and 5.5 V max; (2)IIK, Input clamp current: 18 mA max; (3)IOH, High-level output current: 1 mA max; (4)IOL, Low-level output current: 20 mA max; (5)VIH, high level input voltage: 2.0 V min; (6)VIL, low level input voltage: 0.8 V max; (5)Tamb, Operating free-air temperature range: 0 to +70.