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HD74LS166AP - 8-bit Shift Register

Download the HD74LS166AP datasheet PDF. This datasheet also covers the HD74LS166A variant, as both devices belong to the same 8-bit shift register family and are provided as variant models within a single manufacturer datasheet.

Features

  • gated clock inputs and an overriding clear input. The parallel-in or serial-in modes are established by the shift / load input. When high, this input enables the serial data input and couples the eight flip-flops for serial shifting with each clock pulse. When low, the parallel (broadside) data inputs are enabled and synchronous loading occurs on the next clock pulse, during parallel loading, serial data flow is inhibited. This, of course, allows the system clock to be free running and the re.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HD74LS166A-Renesas.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
HD74LS166A 8-bit Shift Registers Hitachi Semiconductor
HD74LS160A Synchronous Decade Counters Hitachi Semiconductor
HD74LS161A Synchronous 4-bit Binary Counters Hitachi Semiconductor
HD74LS162A Synchronous Decade Counters Hitachi Semiconductor
HD74LS163A Synchronous 4-bit Binary Counters Hitachi Semiconductor

Other Datasheets by Renesas

Part Number Description
HD74LS166A 8-bit Shift Register
HD74LS160A Synchronous Decade Counter
HD74LS160AP Synchronous Decade Counter
HD74LS161A Synchronous 4-bit Binary Counter
HD74LS161AP Synchronous 4-bit Binary Counter

Full PDF Text Transcription

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HD74LS166A 8-bit Shift Register REJ03D0450-0400 Rev.4.00 May 10, 2006 The inputs are buffered to lower the drive requirements to one series 74 or 74LS standard load, respectively. Input clamping diodes minimize switching transients and simplify system design. This parallel in or serial-in, serial-out shift register has a complexity of 77 equivalent gates on a monolithic chip. This device features gated clock inputs and an overriding clear input. The parallel-in or serial-in modes are established by the shift / load input. When high, this input enables the serial data input and couples the eight flip-flops for serial shifting with each clock pulse.
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