Homedatasheet54F379FM

54F379FM Datasheet

Quad Parallel Register With Enable
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Description

Features, Applications

The a 4-bit register with buffered common Enable This device is similar to the 'F175 but features the common Enable rather than common Master Reset

Features

Edge triggered D-type inputs Buffered positive edge-triggered clock Buffered common enable input True and complement outputs Guaranteed 4000V minimum ESD protection

Package Description (0 300 Wide) Molded Dual-In-Line 16-Lead Ceramic Dual-In-Line (0 300 Wide) Molded Small Outline JEDEC (0 300 Wide) Molded Small Outline EIAJ 16-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C

Note 1 Devices also available in 13 reel Use suffix e SCX and SJX

TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation 9527 RRD-B30M115 Printed S A

Enable Input (Active LOW) Data Inputs Clock Pulse Input (Active Rising Edge) Flip-Flop Outputs Complement Outputs

The 'F379 consists of four edge-triggered D-Type flip-flops with individual D inputs and Q and Q outputs The Clock (CP) and Enable (E) inputs are common to all flip-flops When the E is input HIGH the register will retain the present data independent of the CP input The Dn and E inputs can change when the clock is in either state provided that the recommended setup and hold times are observed

H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial L e LOW-to-HIGH Transition e No Change

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays

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 Voltge (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 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 Short-Circuit Current Power Supply Current

Conditions Recognized as a HIGH Signal Recognized as a LOW Signal

IIN b18 mA IOH b1 mA IOH b1 mA IOH b1 mA IOL 20 mA IOL 20 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 0 5V VOUT VO e LOW


Features

Parameters

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Manufacturer information

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