Details

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BUY SN74LS164N https://www.utsource.net/itm/p/11246475.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	4.75	5.0	5.25	V
Input Voltage (High)	VIH	-	2.0	-	VCC	V
Input Voltage (Low)	VIL	-	0	0.8	-	V
Output Voltage (High)	VOH	IO = -0.4 mA	2.7	-	VCC - 0.5	V
Output Voltage (Low)	VOL	IO = 16 mA	0	-	0.5	V
Input Current (High)	IIH	VI = VCC	-	40	-	渭A
Input Current (Low)	IIL	VI = 0 V	-	0.4	-	mA
Output Current (Source)	IOH	VOH = 2.4 V	-	0.4	-	mA
Output Current (Sink)	IOL	VOL = 0.4 V	-	-	16	mA
Propagation Delay Time	tpd	VCC = 5 V, TA = 25掳C	-	35	-	ns
Power Dissipation	PD	Maximum	-	-	100	mW

Instructions for Using SN74LS164N:

1. Power Supply:

   • Connect V_CC to +5V and GND to 0V.
   • Ensure the power supply is stable and within the operating range (4.75V to 5.25V).

2. Input Connections:

   • Connect the serial data input (SER) to the source of your data.
   • Connect the shift register clock (SRCLK) to the clock signal.
   • Connect the shift register clear (SRCLR) to a control signal that can reset the register.

3. Output Connections:

   • The outputs (Q0 to Q7) will provide the parallel data after the shift register has been loaded.
   • Ensure that the load on each output does not exceed the maximum current ratings (source: 0.4 mA, sink: 16 mA).

4. Operation:

   • When SRCLR is high, the shift register operates normally.
   • On each rising edge of SRCLK, the data at SER is shifted into the register.
   • After 8 clock pulses, the 8-bit data will be available at the parallel outputs (Q0 to Q7).
   • Setting SRCLR low will clear all the outputs to low.

5. Propagation Delay:

   • The propagation delay time (t_pd) is the time it takes for the data to appear at the output after the clock edge. It is typically around 35 ns at 25掳C.

6. Power Dissipation:

   • The device should not dissipate more than 100 mW to avoid overheating. Ensure proper heat dissipation if the device is used in high-frequency or high-power applications.

7. Handling:

   • Handle the device with care to avoid static damage. Use proper ESD protection when handling the IC.
   • Store the device in a dry environment to prevent moisture damage.

By following these instructions, you can effectively use the SN74LS164N shift register in your digital circuits.

(For reference only)