深圳市太航半导体有限公司

SN74HC595N SN74HC595N SN74HC595N SN74HC595N

FEATURES• 8-Bit Serial-In, Parallel-Out Shift• Wide Operating Voltage Range of 2 V to 6 V• High-Current 3-State Outputs Can Drive Up To15 LSTTL Loads• Low Power Consumption: 80-μA (Max) ICC• tpd = 13 ns (Typ)• ±6-mA Output Drive at 5 V• Low Input Current: 1 μA (Max)• Shift Register Has Direct ClearDESCRIPTIONThe 'HC595 devices contain an 8-bit serial-in,parallel-out shift register that feeds an 8-bit D-typestorage register. The storage register has parallel3-state outputs. Separate clocks are provided for boththe shift and storage register. The shift register has adirect overriding clear (SRCLR) input, serial (SER)input, and serial outputs for cascading. When theoutput-enable (OE) input is high, the outputs are inthe high-impedance state.Both the shift register clock (SRCLK) and storageregister clock (RCLK) are positive-edge triggered. Ifboth clocks are connected together, the shift registeralways is one clock pulse ahead of the storageregister

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