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74F251PC
54F 74F251A 8-Input Multiplexer with TRI-STATE Outputs General Description Features The ’F251A is a high-speed 8-input digital multiplexer It provides in one package the ability to select one bit of data from up to eight sources It can be used as a universal function generator to generate any logic function of four variables Both assertion and negation outputs are provided Y Y Multifunctional capability On-chip select logic decoding Inverting and non-inverting TRI-STATE outputs Package Number Military 74F251APC Package Description e Commercial Y N16E 16-Lead (0 300 Wide) Molded Dual-In-Line J16A 16-Lead Ceramic Dual-In-Line 74F251ASC (Note 1) M16A 16-Lead (0 150 Wide) Molded Small Outline JEDEC 74F251ASJ (Note 1) M16D 16-Lead (0 300 Wide) Molded Small Outline EIAJ 54F251AFM (Note 2) W16A 16-Lead Cerpack 54F251ALL (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier Type C et 54F251ADM (Note 2) Note 1 Devices also available in 13 reel Use suffix e SCX and SJX bs ol Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB Logic Symbols Connection Diagrams Pin Assignment for DIP SOIC and Flatpak Pin Assignment for LCC TL F 9504–3 O IEEE IEC TL F 9504 – 1 TL F 9504 – 2 TL F 9504–5 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9504 RRD-B30M75 Printed in U S A 54F 74F251A 8-Input Multiplexer with TRI-STATE Outputs November 1994 Current Applied to Output in LOW State (Max) Absolute Maximum Ratings (Note 1) twice the rated IOL (mA) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications 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 Storage Temperature b 65 C to a 150 C Note 2 Either voltage limit or current limit is sufficient to protect inputs Ambient Temperature under Bias Junction Temperature under Bias Plastic b 55 C to a 125 C b 55 C to a 175 C b 55 C to a 150 C Recommended Operating Conditions VCC Pin Potential to Ground Pin Free Air Ambient Temperature Military Commercial b 0 5V to a 7 0V b 0 5V to a 7 0V Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC e 0V) Standard Output TRI-STATE Output b 55 C to a 125 C 0 C to a 70 C Supply Voltage Military Commercial b 30 mA to a 5 0 mA a 4 5V to a 5 5V a 4 5V to a 5 5V b 0 5V to VCC b 0 5V to a 5 5V Symbol 54F 74F Parameter Min VIH Input HIGH Voltage VIL Input LOW Voltage VCD Input Clamp Diode Voltage VOH Output HIGH Voltage Typ IIH IBVI ICEX VID V Conditions Recognized as a HIGH Signal V Recognized as a LOW Signal et 08 54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 74F 5% VCC 74F 5% VCC VCC b1 2 25 24 25 24 27 27 V V Min IIN e b18 mA Min IOH IOH IOH IOH IOH IOH e e e e e e b 1 mA b 3 mA b 1 mA b 3 mA b 1 mA b 3 mA Output LOW Voltage 54F 10% VCC 74F 10% VCC 05 05 V Min Input HIGH Current 54F 74F 20 0 50 mA Max VIN e 2 7V Input HIGH Current Breakdown Test 54F 74F 100 70 mA Max VIN e 7 0V Output HIGH Leakage Current 54F 74F 250 50 mA Max VOUT e VCC Input Leakage Test 74F V 00 IID e 1 9 mA All Other Pins Grounded Output Leakage Circuit Current 74F 3 75 mA 00 VIOD e 150 mV All Other Pins Grounded VIN e 0 5V O IOD Units Max bs ol VOL 20 e DC Electrical Characteristics 4 75 IOL e 20 mA IOL e 24 mA IIL Input LOW Current b0 6 mA Max IOZH Output Leakage Current 50 mA Max VOUT e 2 7V IOZL Output Leakage Current b 50 mA Max VOUT e 0 5V IOS Output Short-Circuit Current b 150 mA Max VOUT e 0V IZZ Bus Drainage Test 500 mA 0 0V VOUT e 5 25V ICCL Power Supply Current 15 22 mA Max VO e LOW ICCZ Power Supply Current 16 24 mA Max VO e HIGH Z b 60 3
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