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====== lamaPLC: CJMCU-164; SN74HC164D 8-bit Shift Register Module ======
{{ :sensor:cjmcu-164.png?200|CJMCU-164; SN74HC164D 8-bit Shift Register Module}}
The CJMCU164 8-bit shift register board is based on the SN74HC164D IC. The SN74HC164D is an 8-bit serial-in parallel-out shift register.

**SN74HC164D**

These 8-bit shift registers feature AND-gated serial inputs and an asynchronous clear (CLR) input. The gated serial (A and B) inputs permit complete control over incoming data; a low level at either input inhibits the entry of new data and resets the first flip-flop to the low level at the next clock (CLK) pulse. A high-level input enables the other input, which then determines the state of the first flip-flop.  Data at the serial inputs can be changed while  CLK  is high or low,  provided the minimum setup time requirements are met. Clocking occurs on the low-to-high transition of CLK.

{{ :sensor:cjmcu-164_5.png?400 |}}

**Technical data**
  * Supply voltage range, Vcc: –0.5 V .. 7 V
  * Input clamp current, IiK (Vi < 0 or Vi > Vcc): ±20 mA
  * Output clamp current, IoK (Vo < 0 or Vo > Vcc): ±20 mA
  * Continuous output current, Io (VO = 0 to Vcc): ±25 mA
  * Continuous current through Vcc or GND: ±50 mA

|{{ :sensor:cjmcu-164_2.png?400 |}}|{{ :sensor:cjmcu-164_3.png?400 |}}|
====== Source ======

https://docs.arduino.cc/tutorials/communication/guide-to-shift-out/ \\

===== Communication topics on lamaPLC =====
{{topic>communication}}

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{{tag>CJMCU-164 SN74HC164D 8-bit_Shift_Register SN74HC164D communication 7-segment}}
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