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The NTE74S182 is a high−speed, look−ahead carry generator in a 16−lead plastic DIP-type package capable of anticipating a carry across four binary adders or group of adders. It is capable of performing full look−ahead across n−bit adders. Carry, generate−carry and propagate−carry functions are provided as enumerated in the pin designation table. When used in conjunction with the NTE74181, NTE74LS181 or NTE74S181 arithmetic logic unit (ALU), this generator provides high−speed carry look−ahead capability for any word length. This device generates look−ahead (anticipated carry) across a group of four ALU's and, in addition, other carry look−ahead circuits may be employed to anticipate carry across sections of four look−ahead packages up to n−bits.
Directly compatible for use with: NTE74181, NTE74LS181
Absolute Maximum Ratings: (Note 1)
Supply voltage VCC: 7V
DC input voltage VIN: 5.5V
Interemitter voltage (Note 2): 5.5V
Operating temperature range TA: 0°C to +70°C
Storage temperature range Tstg: −65°C to +150°C
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Note 1. Voltage values, except interemitter voltage, are with respect to network ground terminal.
Note 2. This is the voltage between two emitters of a multiple−emitter input transistor. For this circuit, this rating applies to each G input in conjunction with any other G input or in conjunction with any P input.