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DM74AS646 Folha de dados(PDF) 4 Page - Fairchild Semiconductor |
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DM74AS646 Folha de dados(HTML) 4 Page - Fairchild Semiconductor |
4 / 8 page www.fairchildsemi.com 4 Absolute Maximum Ratings(Note 3) Note 3: 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 4: The ( ↑) arrow indicates the positive edge of the Clock is used for reference. Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Note 5: For I/O ports, the parameters IIH and IIL include the OFF-State current, IOZH and IOZL. 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 41.1 °C/W M Package 81.5 °C/W Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.5 5 5.5 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −15 mA IOL LOW Level Output Current 48 mA fCLK Clock Frequency 0 90 MHz tW Width of Clock Pulse HIGH 5 ns LOW 6 ns tSU Data Setup Time (Note 4) 6 ↑ ns tH Data Hold Time (Note 4) 0 ↑ ns TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units VIK Input Clamp Voltage VCC = 4.5V, II = −18 mA −1.2 V VOH HIGH Level VCC = 4.5V, VIL = Max IOH = Max 2 Output Voltage VIH = Min IOH = −3 mA 2.4 3.2 V VCC = 4.5V to 5.5V, IOH = −2 mA VCC − 2 VOL LOW Level VCC = 4.5V, VIL = Min 0.35 0.5 V Output Voltage VIH = 2V, IOL = Max II Input Current @ Max VCC = 5.5V VI = 7V Control Inputs 0.1 mA Input Voltage VI = 5.5V A or B Ports 0.1 IIH HIGH Level Input Current VCC = 5.5V, VIH = 2.7V Control Inputs 20 µA (Note 5) A or B Ports 70 IIL LOW Level Input Current VCC = 5.5V, VIL = 0.4V Control Inputs −0.5 mA (Note 5) A or B Ports −0.75 IO Output Drive Current VCC = 5.5V, VO = 2.25V −30 −112 mA ICC Supply Current VCC = 5.5V Outputs HIGH 120 195 DM74AS646 Outputs LOW 130 211 Outputs Disabled 130 211 mA Outputs HIGH 110 185 DM74AS648 Outputs LOW 120 195 Outputs Disabled 120 195 |
Nº de peça semelhante - DM74AS646 |
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Descrição semelhante - DM74AS646 |
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