74LS243: 马来西亚的首选 Utsource Holding Company Limited

详情

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	V_CC	4.75	5.0	5.25	V
Input Low Voltage	V_IL	0.0	-	0.8	V
Input High Voltage	V_IH	2.0	-	V_CC	V
Output Low Voltage	V_OL	0.0	-	0.4	V
Output High Voltage	V_OH	2.4	-	V_CC - 0.1	V
Propagation Delay Time	t_pd	-	10	25	ns
Power Dissipation	P_D	-	-	100	mW
Operating Temperature Range	T_A	-40	-	85	°C

Supply Voltage:
- Ensure the supply voltage (V_CC) is within the range of 4.75V to 5.25V. The typical operating voltage is 5.0V.
Input Levels:
- For a logic low input, the voltage should be between 0.0V and 0.8V.
- For a logic high input, the voltage should be between 2.0V and V_CC.
Output Levels:
- When the output is low, the voltage will be between 0.0V and 0.4V.
- When the output is high, the voltage will be between 2.4V and V_CC - 0.1V.
Propagation Delay:
- The propagation delay time (t_pd) is typically 10ns and can be up to 25ns. This is the time it takes for a change in the input signal to affect the output.
Power Dissipation:
- The maximum power dissipation (P_D) is 100mW. Ensure that the device does not exceed this limit to avoid damage.
Operating Temperature:
- The device is designed to operate within a temperature range of -40°C to 85°C.
Handling:
- Handle the 74LS243 with care to avoid static damage. Use proper ESD protection when handling the device.
Mounting:
- Ensure proper mounting on the PCB to maintain good thermal performance and mechanical stability.
Testing:
- Before integrating the 74LS243 into your circuit, test it using a known good setup to ensure it functions correctly.
Storage:
- Store the device in a dry, cool place to prevent moisture damage and ensure long-term reliability.

(For reference only)