DM7425 NSC | Alldatasheet
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a A National 5425/DM7425 Dual 4-Input NOR Gate (with Strobe) General Description This device contains two, 4-input gates that perform the log- ic NOR function. The output of each NOR gate is gated (strobed) by pin 3 and pin 11 by positive true logic i.e., logic “4” equals output on. Connection Diagram Dual-In-Line Package 1 wey 2 1s % 3 2 ry rm 3 fe iJ 9 7 8 ox: rus /ors-1 Order Number 5425DMQB, 5425FMQB, DM7425J or DM7425N: ‘See NS Package Number J14A, N14A and W148 4-36
R Absolute Maximum Ratings If Military/Aerospace specified devices are required, Note: The “Absolute Maximum Ratings” are those values please contact the National Semiconductor Sales beyond which the safety of the device cannot be guaran- Office/Distributors for availability and specifications. teed. The device should not be operated at these limits. The ‘Supply Voltage wv parametric values defined in the “Electrical Characteristics” Input Voltage 5.5V table are not guaranteed at the absolute maximum ratings. Jing Free Ar Te ature Range ° The “Recommended Operating Conditions” table will define Operating Free Air Temper the conditions f " device operation. 54 55°C to + 125°C for actual tion. DM74 OC to +70°C Storage Temperature Range 65°C to + 150°C Recommended Operating Conditions Symbol Prime BL tars nits | min [Nom [wax | min | Nom | Max | Veo Supply Voltage [as [os | os5 [ar [os | sa |v im High Level input Voltage pe [of pe TT Yiu Low Level input Voltage a ee lon HightovelOutputcurent | | | oe || 04 | ima or___| towtevetouiputcurent | | | we TT tema Ta Free ir Operating Temperature | -s5 | | ws | o | | 7m | Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Typ Symbol team | Conations [mn | (Note 1) oats Vou High Level Output Voltage Voc = Min, lon = Max v Vi, = Max Vou Low Level Output Voltage Voc = Min, Io, = Max Vv Vig = Min \\ Input Current @ Max Voc = Max, Vj = 5.5V 1 mA Input Voltage tne Highevelinputcurent | Voo=Max, | swobe [| seo |, tu LowLevelinputcurent | Voc=Max | swobe | | | -e4 | oy visoav | inputs [Ts | los Short Greuit Veo=mex | se | -20 | | 35 Ty up Cert wow Towne [=e [=a | locH ‘Supply Current with Vec = Max m™ Outputs High loot ‘Supply Current with Voc = Max mA Outputs Low Switching Characteristics at vcc = 5v, Ta = 25°C (See Section 1 for Test Waveforms and Output Load) symbol | Parameter | Conattions | win [Max | Unite 4 | tPLH Propagation Delay Time CL = 15 pF ns. Low to High Level Output RL = 4000 teHL Propagation Delay Time ns High to Low Level Output ‘Note t: All pica are at Vag = SV, Ta = 25° Note 2: Not mote than one ouput shouldbe shorted ata time. 4-37