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SN74HCS594 Datasheet(PDF) 14 Page - Texas Instruments |
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SN74HCS594 Datasheet(HTML) 14 Page - Texas Instruments |
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14 / 27 page ![]() 9.2 Typical Application QH¶ Seven Segment SRCLR QA QB QC QD QE QF QG QH g f a b DP c d e a b c d e f g DP GND VCC SER SRCLK RCLK RCLR QH¶ QA QB QC QD QE QF QG QH GND VCC SER SRCLK RCLK Seven Segment g f a b DP c d e a b c d e f g DP MCU R2 C2 R1 C1 VCC VCC SRCLR RCLR Figure 9-1. Typical application block diagram 9.2.1 Design Requirements 9.2.1.1 Power Considerations Ensure the desired supply voltage is within the range specified in the Recommended Operating Conditions. The supply voltage sets the device's electrical characteristics as described in the Electrical Characteristics. The positive voltage supply must be capable of sourcing current equal to the total current to be sourced by all outputs of the SN74HCS594 plus the maximum static supply current, ICC, listed in Electrical Characteristics and any transient current required for switching. The logic device can only source as much current as is provided by the positive supply source. Be sure not to exceed the maximum total current through VCC listed in the Absolute Maximum Ratings. The ground must be capable of sinking current equal to the total current to be sunk by all outputs of the SN74HCS594 plus the maximum supply current, ICC, listed in Electrical Characteristics, and any transient current required for switching. The logic device can only sink as much current as can be sunk into its ground SN74HCS594 SCLS839 – AUGUST 2020 www.ti.com 14 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: SN74HCS594 |
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