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MC74AC646DW データシート(PDF) 3 Page - ON Semiconductor |
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MC74AC646DW データシート(HTML) 3 Page - ON Semiconductor |
3 / 11 page MC74AC646, MC74ACT646 http://onsemi.com 3 FUNCTION TABLE Inputs Data I/O* Operation or Function G DIR CAB CBA SAB SBA A0−A7 B0−B7 H H X X H or L H or L X X X X Input Input Isolation Store A and B Data L L L L X X X X X X L H Output Input Real Time B Data to A Bus Stored B Data to A Bus L L H H X H or L X X L H X X Input Output Real Time A Data to B Bus Stored A Data to B Bus *The data output functions may be enabled or disabled by various signals at the G and DIR inputs. Data input functions are always enabled; i.e., data at the bus pins will be stored on every LOW−to−HIGH transition of the appropriate clock inputs. NOTE: H = HIGH Voltage Level; L = LOW Voltage Level; X = Immaterial; = LOW−to−HIGH Transition MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) −0.5 to +7.0 V Vin DC Input Voltage (Referenced to GND) −0.5 to VCC +0.5 V Vout DC Output Voltage (Referenced to GND) −0.5 to VCC +0.5 V Iin DC Input Current, per Pin ±20 mA Iout DC Output Sink/Source Current, per Pin ±50 mA ICC DC VCC or GND Current per Output Pin ±50 mA Tstg Storage Temperature −65 to +150 °C *Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recom- mended Operating Conditions. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Typ Max Unit VCC Supply Voltage ′AC 2.0 5.0 6.0 V ′ACT 4.5 5.0 5.5 Vin, Vout DC Input Voltage, Output Voltage (Ref. to GND) 0 − VCC V tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs VCC @ 3.0 V − 150 − VCC @ 4.5 V − 40 − ns/V VCC @ 5.5 V − 25 − tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs VCC @ 4.5 V − 10 − ns/V VCC @ 5.5 V − 8.0 − TJ Junction Temperature (PDIP) − − 140 °C TA Operating Ambient Temperature Range −40 25 85 °C IOH Output Current − High − − −24 mA IOL Output Current − Low − − 24 mA 1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times. 2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. |
同様の部品番号 - MC74AC646DW |
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同様の説明 - MC74AC646DW |
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