مدار مجتمع (آی سی) آی‌سی منطقی (دیجیتال) مقایسه‌گر منطقی

Product Attributes

Introduction

Buffered inputs and outputs Typical propagation delay: 13ns (output data at V_CC = 5V, C_L = 15pF, T_A = 25°C)

Serial or parallel fan-out expansion without external strobe (over temperature range) – Standard outputs: 10 LSTTL loads – Bus driver outputs: 15 LSTTL loads Wide operating temperature range: -55°C to 125°C Balanced propagation delays and transition times Significantly reduced power consumption compared to LSTTL logic ICs

HC type operating voltage: 2V to 6V – High noise immunity: N_IL = 30%, N_IH = 30% of V_CC at V_CC = 5V

HCT type – Operating voltage: 4.5V to 5.5V – Direct LSTTL input logic compatibility, V_IL = 0.8V (max), V_IH = 2V (min) – CMOS input compatibility at V_OL, V_OH voltages, I_1 ≤ 1μA

The 'HC85 and 'HCT85 high speed magnitude comparators utilize silicon-gate CMOS technology to achieve operating speeds comparable to LSTTL with the low power consumption of standard CMOS ICs.

These 4-bit devices compare two binary BCD codes or other monotonic codes and present three possible magnitude comparison 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 '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.

Features

• Buffered inputs and outputs
• Typical propagation delay: 13ns (output data at V_CC = 5V, C_L = 15pF, T_A = 25°C)
• Serial or parallel fan-out expansion without external gating (over temperature range)
• Standard outputs: 10 LSTTL loads
• Bus driver outputs: 15 LSTTL loads
• Wide operating temperature range: -55°C to 125°C
• Balanced propagation delay and transition times
• Significantly reduced power consumption compared to LSTTL logic ICs
• HC type operating voltage: 2V to 6V
• High noise immunity: N_IL = 30%, N_IH = 30% of V_CC at V_CC = 5V
• HCT type operating voltage: 4.5V to 5.5V
• Direct LSTTL input logic compatibility, V_IL = 0.8V (max), V_IH = 2V (min)
• CMOS input compatibility, I_1 ≤ 1μA at V_OL and V_OH
• Silicon gate CMOS technology
• Low power consumption inherent to standard CMOS ICs
• Operating speed comparable to LSTTL
• Compares two sections of binary BCD or other monotonic codes
• Outputs three possible magnitude comparison results (A > B, A < B, and A = B)
• Weighted 4-bit input words (A0 to A3 and B0 to B3), with A3 and B3 as the most significant bits
• Serial or parallel expansion without external gating