54F2244 Datasheet



Features, Applications
54F 74F2244 Octal Buffer Line Driver with 25X Series Resistors in Outputs

The is an octal buffer line driver designed to drive the capacitive inputs of MOS memory drivers address drivers clock drivers and bus-oriented transmitters receivers The 25X series resistors in the outputs reduce ringing and eliminate the need for external resistors


TRI-STATE outputs drive bus lines or buffer memory address registers 12 mA source current 25X series resistors in outputs eliminate the need for external resistors Designed to drive the capacitive inputs of MOS devices Guaranteed 4000V minimum ESD protection

Package Description (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line (0 300 Wide) Molded Small Outline JEDEC 20-Lead Molded Shrink Small Outline EIAJ Type II 20-Lead Cerpak 20-Lead Ceramic Leadless Chip Carier Type C

Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB

TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation

TRI-STATE Output Enable Input (Active LOW) TRI-STATE Output Enable Input (Active HIGH) Inputs Outputs

H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance

If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias Plastic VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC e 0V) Standard Output TRI-STATE Output Current Applied to Output in LOW State (Max) ESD Last Passing Voltage (Min)

Free Air Ambient Temperature Military Commercial Supply Voltage Military Commercial

Note 1 Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired Functional operation under these conditions is not implied Note 2 Either voltage limit or current limit is sufficient to protect inputs

Symbol VIH VIL VCD VOH Parameter Min Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 74F 5% VCC 54F 74F

Conditions Recognized as a HIGH Signal Recognized as a LOW Signal

Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current Output Leakage Current Output Leakage Current Output Short-Circuit Current Power Supply Current Power Supply Current Power Supply Current

IOL 1 mA IOL 12 mA VIN 2 7V VIN 7 0V VOUT e VCC IID 9 mA All other pins grounded VIOD 150 mV All other pins grounded VIN OE2 OE2) VIN 0 5V (In) VOUT 2 7V VOUT 0 5V VOUT VO e HIGH VO e LOW VO e HIGH Z



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