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HCF4055BF Scheda tecnica(PDF) 4 Page - STMicroelectronics |
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HCF4055BF Scheda tecnica(HTML) 4 Page - STMicroelectronics |
4 / 15 page ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V DD* Supply Voltage : HC C Types HCF Types – 0.5 to + 20 – 0.5 to + 18 V V Vi Input Voltage – 0.5 to VDD + 0.5 V I I DC Input Current (any one input) ± 10 mA Pto t Total Power Dissipation (per package) Dissipation per Output Transistor for Top = Full Package-temperature Range 200 100 mW mW T op Operating Temperature : HCC Types HCF Types – 55 to + 125 –40 to + 85 °C °C T stg Storage Temperature – 65 to + 150 °C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Val ue Unit VDD Supply Voltage : HCC Types HCF Types 3to18 3to15 V V V I Input Voltage 0 to VDD V T op Operating Temperature : HCC Types HC F Types –55 to 125 –40 to 85 °C °C Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for external periods may affect device reliability. * All voltage values are referred to VSS pin voltage. TRUTH TABLE 4055 B and 4056 B Input Code Output State 23 22 21 20 ab cd e f g Display Character 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 0 1 1 0 1 1 1 1 1 0 0 1 1 0 0 1 1 1 1 1 0 0 1 1 1 0 1 1 1 0 0 1 1 0 1 1 1 1 1 1 1 0 1 0 1 0 0 1 0 1 1 0 1 1 0 1 1 1 0 0 0 0 0 1 0 1 0 0 0 1 0 1 0 1 1 1 1 0 0 1 0 0 0 1 1 1 0 1 1 1 1 1 1 0 0 0 0 1 1 1 1 1 0 1 1 0 1 1 1 1 0 0 1 2 3 4 5 6 7 8 9 L H P A – BLANK Data Setup Time and Strobe Pulse Duration. HCC/HCF4054B/55B/56B 4/15 |
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