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SN54LS164

ACTIVE

8-Bit Parallel-Out Serial Shift Registers

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Data sheet

SN54LS164

ACTIVE
Data sheet Order now

Product details

Configuration Serial-in, Parallel-out Bits (#) 8 Technology family LS Input type Bipolar Output type Push-Pull Clock frequency (MHz) 25 IOL (max) (mA) 8 IOH (max) (mA) -0.4 Supply current (max) (µA) 27000 Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
Configuration Serial-in, Parallel-out Bits (#) 8 Technology family LS Input type Bipolar Output type Push-Pull Clock frequency (MHz) 25 IOL (max) (mA) 8 IOH (max) (mA) -0.4 Supply current (max) (µA) 27000 Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
LCCC (FK) 20 79.0321 mm² (— mm × — mm) CFP (W) 14 58.023 mm² (— mm × — mm) CDIP (J) 14 130.4652 mm² (— mm × — mm)
  • Gated Serial Inputs
  • Fully Buffered Clock and Serial Inputs
  • Asynchronous Clear

 
  • Gated Serial Inputs
  • Fully Buffered Clock and Serial Inputs
  • Asynchronous Clear

 

These 8-bit shift registers feature gated serial inputs and an asynchronous clear. The gated serial inputs (A and B) permit complete control over incoming data as a low at either input inhibits entry of the new data and resets the first flip-flop to the low level at the next clock pulse. A high-level input enables the other input which will then determine the state of the first flip-flop. Data at the serial inputs may be changed while the clock is high or low, but only information meeting the setup-time requirements will be entered. Clocking occurs on the low-to-high-level transition of the clock input. All inputs are diode-clamped to minimize transmission-line effects.

The SN54164 and SN54LS164 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74164 and SN74LS164 are characterized for operation from 0°C to 70°C.

 

These 8-bit shift registers feature gated serial inputs and an asynchronous clear. The gated serial inputs (A and B) permit complete control over incoming data as a low at either input inhibits entry of the new data and resets the first flip-flop to the low level at the next clock pulse. A high-level input enables the other input which will then determine the state of the first flip-flop. Data at the serial inputs may be changed while the clock is high or low, but only information meeting the setup-time requirements will be entered. Clocking occurs on the low-to-high-level transition of the clock input. All inputs are diode-clamped to minimize transmission-line effects.

The SN54164 and SN54LS164 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74164 and SN74LS164 are characterized for operation from 0°C to 70°C.

 
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* Data sheet 8-Bit Parallel-Out Serial Shift Registers datasheet Mar 1, 1988

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