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DM74ALS646NT 数据表(PDF) 3 Page - Fairchild Semiconductor |
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DM74ALS646NT 数据表(HTML) 3 Page - Fairchild Semiconductor |
3 / 6 page 3 www.fairchildsemi.com Absolute Maximum Ratings(Note 2) Note 2: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions Note 3: ↑ = With reference to the LOW-to-HIGH transition of the respective clock. Electrical Characteristics over recommended free air temperature range Note 4: For I/O ports the 3-STATE output currents (IOZH and IOZL) are included in the IIH and IIL parameters. Supply Voltage 7V Input Voltage Control Inputs 7V I/O Ports 5.5V Operating Free-Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Typical θ JA N Package 44.5 °C/W M Package 80.5 °C/W Symbol Parameter Min Nom Max Units VCC Supply Voltage 5 5.5 V VIH HIGH Level Input Voltage V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −15 mA IOL LOW Level Output Current 24 mA fCLK Clock Frequency 40 MHz tW Pulse Duration, Clocks LOW or HIGH ns tSU Data Setup Time, A before CAB or B before CBA (Note 3) 10 ↑ ns tH Data Hold Time, A after CAB or B after CBA (Note 3) 0 ↑ ns TA Free Air Operating Temperature 70 °C Symbol Parameter Test Conditions Min Typ Max Units VIC Input Clamp Voltage VCC = Min, II = −18 mA −1.2 V VOH HIGH Level VCC = 4.5V to 5.5V IOH = −0.4 mA VCC − 2 Output Voltage VCC = Min IOH = −3 mA 2.4 3.2 V IOH = Max 2 VOL LOW Level VCC = Min IOL = 12 mA 0.25 0.4 Output Voltage IOL = 24 mA 0.35 0.5 V IOL = 48 mA 0.35 0.5 II Input Current at Maximum VCC = Max I/O Ports, VI = 5.5V 100 µA Input Voltage Control Inputs, VI = 7V 100 IIH HIGH Level Input Current VCC = Max, VI = 2.7V (Note 4) 20 µA IIL LOW Level VCC = Max, Control Inputs −200 µA Input Current VI = 0.4V, (Note 4) I/O Ports −200 IO Output Drive Current VCC = Max, VO = 2.25V −30 −112 mA ICC Supply Current VCC = Max Outputs HIGH 47 76 Outputs LOW 55 88 mA Outputs Disabled 55 88 |
类似零件编号 - DM74ALS646NT |
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类似说明 - DM74ALS646NT |
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