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MC74AC534DW Datasheet(PDF) 2 Page - Motorola, Inc |
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MC74AC534DW Datasheet(HTML) 2 Page - Motorola, Inc |
2 / 7 page MC74AC534 MC74ACT534 5-2 FACT DATA FUNCTIONAL DESCRIPTION The MC74AC534/74ACT534 consists of eight edge-triggered flip-flops with individual D-type inputs and 3-state true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold times requirements on the LOW-to-HIGH Clock (CP) transition. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops. CP D Q CP D Q CP D Q CP D Q CP D Q CP D Q CP D Q CP D Q LOGIC DIAGRAM D0 D1 D2 D3 D4 D5 D6 D7 O0 O1 O2 O3 O4 O5 O6 O7 OE CP Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 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 Recommended Operating Conditions. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Typ Max 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. |
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