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MC74AC652N 数据表(PDF) 3 Page - Motorola, Inc |
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MC74AC652N 数据表(HTML) 3 Page - Motorola, Inc |
3 / 8 page MC74AC652 MC74ACT652 5-3 FACT DATA FUNCTION TABLE Inputs Data I/O* Operation or Function GAB GBA CAB CBA SAB SBA A0 – A7 B0 – B7 Operation or Function L H H or L H or L X X Input Input Isolation L H ⇑ ⇑ X X Input Input Store A and B Data X H ⇑ H or L X X Input Unspecified* Store A, Hold B H H ⇑ ⇑ X** X Input Output Store A in Both Registers L X H or L ⇑ X X Unspecified* Input Hold A, Store B L L ⇑ ⇑ X X** Output Input Store B in Both Registers L L X X X L Output Input Real-Time B Data to A Bus L L X H or L X H Output Input Stored B Data to A Bus H H X X L X Input Output Real-Time A Data to B Bus H H H or L X H X Input Output Stored A Data to B Bus H L H or L H or L H H Output Output Stored A Data to B Bus and Stored B Data to A Bus H L H or L H or L H H Output Output Stored A Data to B Bus and Stored B Data to A Bus * The data output functions may be enabled or disabled by various signals at the GBA and GAB 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. ** Select control = L: clocks can occur simultaneously. H = HIGH Voltage Level; L = LOW Voltage Level; X = Immaterial; ⇑ = LOW-to-HIGH Transition RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Typ Min Unit VCC Supply Voltage ′AC 2.0 5.0 6.0 V VCC Supply Voltage ′ACT 4.5 5.0 5.5 V 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 tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs VCC @ 4.5 V 40 ns/V r, tf ′AC Devices except Schmitt Inputs 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 tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs VCC @ 5.5 V 8.0 ns/V 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. |
类似零件编号 - MC74AC652N |
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类似说明 - MC74AC652N |
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