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74AHC594 Datasheet(PDF) 3 Page - Diodes Incorporated |
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74AHC594 Datasheet(HTML) 3 Page - Diodes Incorporated |
3 / 11 page 74AHC594 Document number: DS35484 Rev. 3 - 2 3 of 11 www.diodes.com June 2013 © Diodes Incorporated 74AHC594 Functional Description and Timing Diagram Control Input Output Function SHR STR SHCP STCP DS Q7S Qn L X X X X L NC Clear Shift Register X L X X X NC L Clear Storage Register H X L H or L Q6S NC Loads DS into shift register stage 0. All QS shifted H H X X NC Qs Contents of shift register moved to starge register all QS -> QN H H H or L Q6S QnS Shift Register one pulse count ahead of storage register. H=HIGH voltage state L=LOW voltage state ↑=LOW to HIGH transition X= don’t care – high or low (not floating) NC= No change SHCP DS STCP SHR STR Q0 Q1 Q6 Q7 Q7S Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.) Symbol Parameter Rating Unit ESD HBM Human Body Model ESD Protection 2 kV ESD CDM Charged Device Model ESD Protection 1 kV ESD MM Machine Model ESD Protection 200 V VCC Supply Voltage Range -0.5 to +7.0 V VI Input Voltage Range -0.5 to +7.0 V Vo Voltage applied to output in high or low state -0.3 to VCC +0.5 V IIK Input Clamp Current VI< -0.5V -20 mA IOK Output Clamp Current VO<-0.5V -20 mA IOK Output Clamp Current VO> VCC +0.5V 20 mA IO Continuous output current ±25 mA ICC Continuous current through Vcc 75 mA IGND Continuous current through GND -75 mA TJ Operating Junction Temperature -40 to +150 °C TSTG Storage Temperature -65 to +150 °C PTOT Total Power Dissipation 500 mW Notes: 4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should be within recommend values. |
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