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74F40 Scheda tecnica(PDF) 1 Page - NXP Semiconductors |
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74F40 Scheda tecnica(HTML) 1 Page - NXP Semiconductors |
1 / 3 page Philips Semiconductors FAST Products Product specification 74F40 Dual 4-input NAND buffer 1 April 11, 1989 853–0053 96314 TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F40 3.5ns 6mA ORDERING INFORMATION DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 14-pin plastic DIP N74F40N 14-pin plastic SO N74F40D PIN CONFIGURATION 14 13 12 11 10 9 8 7 6 5 4 3 2 1 GND VCC D1b D1a Q1 NC D1d D1c D0a D0b Q0 NC D0c D0d SF00065 INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW Dna, Dnb, Dnc, Dnd Data inputs 1.0/2.0 20 µA/1.2mA Q0, Q1 Data outputs 750/106.7 15mA/64mA NOTE: One (1.0) FAST unit load is defined as: 20 µA in the High state and 0.6mA in the Low state. LOGIC DIAGRAM VCC = Pin 14 GND = Pin 7 NC = Pin 3, 11 SF00081 Q0 6 1 2 4 D0a D0b D0c 5 D0d Q1 8 9 10 12 D1a D1b D1c 13 D1d FUNCTION TABLE INPUTS OUTPUT Dna Dnb Dnc Dnd Qn L X X X H X L X X H X X L X H X X X X H H H H H L NOTES: 1. H = High voltage level 2. L = Low voltage level 3. X = Don’t care LOGIC SYMBOL D1a D1b D0a D0b D0c D1c D1d D0d Q0 Q1 6 8 1 2 4 5 9 10 12 13 VCC = Pin 14 GND = Pin 7 NC = Pin 3, 11 SF00082 IEC/IEEE SYMBOL SF00083 & 6 8 1 2 4 5 9 10 12 13 |
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