74LS165: Pilihan Terbaik di United States (USA) Utsource Holding Company Limited

Deskripsi

BUY 74LS165 https://www.utsource.net/itm/p/14913.html
8-Bit Parallel In/Serial Output Shift Registers

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	V_CC	-	4.75	5.0	5.25	V
Input Voltage (High)	V_IH	I_IH = 20 μA	2.0	-	V_CC	V
Input Voltage (Low)	V_IL	I_IL = -0.4 mA	0	-	0.8	V
Output Voltage (High)	V_OH	I_OH = -0.4 mA	2.4	-	V_CC - 0.5	V
Output Voltage (Low)	V_OL	I_OL = 16 mA	0	-	0.5	V
Propagation Delay Time	t_pd	V_CC = 5V, T_A = 25°C	-	30	-	ns
Power Dissipation	P_D	Continuous	-	-	100	mW
Operating Temperature	T_A	-	-40	-	85	°C
Storage Temperature	T_STG	-	-65	-	150	°C

Power Supply:
- Connect the V_CC pin to a 5V power supply.
- Ground the GND pin.
Input and Output Pins:
- Connect the parallel input pins (P0-P7) to your data source.
- The serial output pin (Q7) can be connected to another 74LS165 or to a microcontroller for further processing.
Control Signals:
- Load/Shift (LS): This pin controls whether the device is in load mode (parallel input) or shift mode (serial output).
  - High (1): Load mode (parallel input)
  - Low (0): Shift mode (serial output)
- Clock (CLK): This pin receives the clock signal for shifting data.
- Clock Inhibit (CLKINH): This pin can be used to inhibit the clock signal.
  - High (1): Clock is inhibited
  - Low (0): Clock is active
Operation Modes:
- Parallel Load Mode:
  - Set LS high.
  - Apply the parallel data to P0-P7.
  - Set LS low to start the shift operation.
- Shift Mode:
  - Set LS low.
  - Apply clock pulses to CLK to shift the data out of Q7.
Timing Considerations:
- Ensure that the propagation delay time (t_pd) is accounted for in your design to avoid timing issues.
- Use appropriate pull-up or pull-down resistors on input and output lines if necessary.
Temperature and Power:
- Operate the device within the specified temperature range to ensure reliable performance.
- Do not exceed the maximum power dissipation to prevent damage to the device.
Storage:
- Store the device in a dry environment within the specified storage temperature range to prevent damage.

By following these instructions, you can effectively use the 74LS165 parallel-to-serial shift register in your circuits.

(For reference only)