onsemi MM74HC688N

Magnitude Comparator, HC/UH Series, 8-Bit, Inverted Output, CMOS, PDIP20

FAIRCHILD SEMICONDUCTOR MM74HC688N IC, 74HC CMOS, 74HC688, DIP20, 6V

Identity Comparator 8-Bit 20-Pin PDIP Rail

High Speed CMOS HC/HCT Logic 8-Bit Mag Comparator

8-Bit Magnitude Comparator (Equality Detector)

IC COMPARATOR MAGNITUDE 8B 20DIP

IDENTITY COMPARATOR 8BIT 20PDIP

IC, 74HC CMOS, 74HC688, DIP20, 6V; Comparator Type:Magnitude; No. of Channels:8; Supply Voltage Range:2V to 6V; Logic Case Style:DIP; No. of Pins:20; Operating Temperature Range:-40°C to +85°C; SVHC:No SVHC (15-Dec-2010); Base Number:74; Device Marking:74HC688; IC Generic Number:74HC688; Logic Function Number:688; Logic IC Base Number:74688; Logic IC Family:HC; Logic IC Function:8bit Magnitude Comparator; No. of Gates:8; No. of Inputs:2; Operating Temperature Max:85°C; Operating Temperature Min:-40°C; Package / Case:DIP; Supply Voltage:6V; Supply Voltage Max:6V; Supply Voltage Min:2V; Termination Type:Through Hole

The MM74HC688 equality detector utilizes advanced silicon-gate CMOS technology to compare bit for bit two 8-bit words and indicates whether or not they are equal. The P#=Q# output indicates equality when it is LOW. A single active low enable is provided to facilitate cascading of several packages and enable comparison of words greater than 8 bits. This device is useful in memory block decoding applications, where memory block enable signals must be generated from computer address information. The comparator's output can drive 10 low power Schottky equivalent loads. This comparator is functionally and pin compatible to the 74LS688. All inputs are protected from damage due to static discharge by diodes to VCC and ground. Product Highlights: Typical propagation delay: 20 ns Wide power supply range: 2-6V Low quiescent current: 80 A (74 Series) Large output current: 4 mA (74 Series) Same as HC521