CD4585B - CMOS 4 位幅度比较器

CD4585B是TI德州仪器公司的一款数字比较器产品，CD4585B是CMOS 4 位幅度比较器，本站介绍了CD4585B的封装应用图解、特点和优点、功能等，并给出了与CD4585B相关的TI元器件型号供参考。

CD4585B - CMOS 4 位幅度比较器 - 数字比较器 - 特殊逻辑 - 德州仪器

产品描述

CD4585B is a 4-bit magnitude comparator designed for use in computer and logic applications that require the comparison of two 4-bit words. This logic circuit determines whether one 4-bit word (Binary or BCD) is "less than", "equal to", or "greater than" a second 4-bit word.

The CD4585B has eight comparing inputs (A3, B3, through A0, B0), three outputs (A<B,A = B,A>B) and three cascading inputs (A<B,A=B,A>B) that permit systems designers to expand the comparator function to 8, 12, 16.....4N bits. When a single CD4585B is used, the cascading inputs are connected as follows: (A<B) = low, (A=B) = high, (A>B) = high.

Cascading these units for comparison of more than 4 bits is accomplished as shown in Fig. 13.

The CD4585B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

产品特性

Expansion to 8, 12, 16.....4N bits by cascading units
Medium-speed operation: compares two 4-bit words in 180 ns (typ.) at 10 V
100% tested for quiescent current at 20 V
Standardized symmetrical output characteristics
5-V, 10-V, and 15-V parametric ratings
Maximum input current of 1 µA at 18 V over full package temperature range; 100 nA at 18 V and 25°C
Noise margin (full package temperature range) = 1 V at VDD = 5 V 2 V at VDD = 10 V 2.5 V at VDD = 15 V
Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
Applications:
- Servo motor controls
- Process controllers

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