74LS109: Pilihan Utama di United States (USA) Utsource Holding Company Limited

Penerangan

Parameter	Symbol	Min	Typical	Max	Unit
Supply Voltage	V_CC	4.75	5.0	5.25	V
Output High Voltage	V_OH	-	2.4	3.4	V
Output Low Voltage	V_OL	0.0	0.4	0.5	V
Input High Voltage	V_IH	2.0	3.5	-	V
Input Low Voltage	V_IL	0.8	1.5	-	V
Propagation Delay Time (Typical)	t_pd	-	16	-	ns
Power Dissipation	P_D	-	100	-	mW
Operating Temperature Range	T_A	-40	-	85	°C

Power Supply:
- Connect the V_CC pin to +5V and GND to 0V.
- Ensure stable power supply to avoid voltage fluctuations.
Input Signals:
- Apply logic high (V_IH) or low (V_IL) signals to the input pins as per the specified voltage levels.
- Avoid applying voltages outside the specified range to prevent damage.
Output Handling:
- The output pins can drive up to 10 standard TTL loads.
- Ensure that the load impedance is appropriate to avoid excessive current draw.
Propagation Delay:
- The typical propagation delay time (t_pd) is 16 ns. This should be considered in timing-sensitive applications.
Temperature Considerations:
- Operate the device within the temperature range of -40°C to 85°C to ensure reliable performance.
- Avoid exposing the device to extreme temperatures outside this range.
Storage and Handling:
- Store the device in a dry, cool environment to prevent moisture damage.
- Handle with care to avoid static discharge, which can damage the device.
Schematic Integration:
- When integrating the 74LS109 into a circuit, ensure proper decoupling capacitors are placed close to the V_CC and GND pins to filter out noise and stabilize the power supply.
Testing:
- Before finalizing the design, test the device under various conditions to ensure it meets the required specifications and performs reliably.

(For reference only)