高速 CMOS 逻辑 4 位幅度比较器
The HC85 and HCT85 are high speed magnitude comparators that use silicon-gate CMOS technology to achieve operating speeds similar to LSTTL with the low power consumption of standard CMOS integrated circuits.
These 4-bit devices compare two binary, BCD, or other monotonic codes and present the three possible magnitude results at the outputs A > B, A < B, and A = B. The 4-bit input words are weighted A0 to A3 and B0 to B3, where A3 and B3 are the most significant bits.
The devices are expandable without external gating, in both serial and parallel fashion. The upper part of the truth table indicates operation using a single device or devices in a serially expanded application. The parallel expansion scheme is described by the last three entries in the truth table.
Data sheet acquired from Harris Semiconductor
型号 | 品牌 | 下载 |
---|---|---|
CD54HC85 | TI 德州仪器 | 下载 |
CD54HC4049F3A | TI 德州仪器 | 下载 |
CD54HC245F | TI 德州仪器 | 下载 |
CD54ACT138F3A | TI 德州仪器 | 下载 |
CD54HC147F3A | TI 德州仪器 | 下载 |
CD54HC373F | TI 德州仪器 | 下载 |
CD54HCT688F | TI 德州仪器 | 下载 |
CD54ACT283F3A | TI 德州仪器 | 下载 |
CD54HCT688F3A | TI 德州仪器 | 下载 |
CD54HC283F3A | TI 德州仪器 | 下载 |
CD54HCT283F3A | TI 德州仪器 | 下载 |