54F521 General Description
The 'F521 is an expandable 8-bit comparator It compares wo words of up to eight bits each and provides a LOW output when the two words match bit for bit The expansion nput IA=B also serves as an active LOW enable input
54F521 Maximum Ratings
If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications
StorageTemperature -65to 150
AmbientTemperatureunderBias -55to 125
JunctionTemperatureunderBias -55to 175
Plastic -55to 150
VCC Pin Potential to Ground Pin -0.5Vto 70V
InputVoltage(Note2) -0.5Vto 70V
InputCurrent(Note2) -30mAto 50mA
Voltage Applied to Output in HIGH State (with VCC 0V)
StandardOutput -0.5VtoVCC
TRI-STATE®Output -0.5Vto5.5V
Current Applied to Output inLOWState(Max) twice the rated IOL (mA)
54F521 Features
Compares two 8-bit words in 65 ns typ
Expandable to any word length
20-pin package
54F521 Connection Diagram
Map list: ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789All