SN54S182 - 超前载波发生器

SN54S182是TI德州仪器公司的一款计数器/算术/奇偶校验功能产品，SN54S182是超前载波发生器，本站介绍了SN54S182的封装应用图解、特点和优点、功能等，并给出了与SN54S182相关的TI元器件型号供参考。

SN54S182 - 超前载波发生器 - 计数器/算术/奇偶校验功能 - 特殊逻辑 - 德州仪器

产品描述

The SN54S182 and SN74S182 are high-speed, look-ahead carry generators capable of anticipating a carry across four binary adders or group of adders. They are cascadable to perform full look-ahead across n-bit adders. Carry, generate-carry, and propagate-carry functions are provided as enumerated in the pin designation table above.

When used in conjunction with the 'LS181 or 'S181 arithmetic logic unit (ALU), these generators provide high-speed carry look-ahead capability for any word length. Each 'S182 generates the look-ahead (anticipated carry) across a group of four ALUs 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. The method of cascading 'S182 circuits to perform multilevel look-ahead is illustrated under typical application data.

The carry functions (inputs, outputs, generate, and propagate) of the look-ahead generators are implemented in the compatible forms for direct connection to the ALU. Reinterpretations of carry functions as explained on the 'LS181 and 'S181 data sheet are also applicable to and compatible with the look-ahead generator. Logic equations for the 'S182 are:

产品特性

Directly Compatible for Use With:
- SN54LS181/SN74LS181,
- SN54S281/SN74S281, SN54S381,
- SN74S381, SN54S481/SN74S481

Interpretations are illustrated in the 'LS181 , 'S181 data sheet.

logic symbol

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