Details

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BUY DM74S157N https://www.utsource.net/itm/p/12611868.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	4.75	5.0	5.25	V
Input High Voltage	VIH	IIH = 20 渭A	2.0	-	VCC	V
Input Low Voltage	VIL	IIL = -0.4 mA	0	-	0.8	V
Output High Voltage	VOH	IOH = -0.4 mA	2.4	-	VCC - 0.5	V
Output Low Voltage	VOL	IOL = 16 mA	0	-	0.5	V
Propagation Delay Time	tpd	VCC = 5V, TA = 25掳C	-	12	18	ns
Power Dissipation	PD	Maximum at TA = 25掳C	-	-	100	mW
Operating Temperature Range	TA	Commercial	0	-	70	掳C
Storage Temperature Range	TSTG	-	-55	-	150	掳C

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the specified range of 4.75V to 5.25V.
   • Connect the ground (GND) pin to a stable ground reference.

2. Input Signals:

   • Apply input signals (S0, S1, A, B, C, D, E, F, G, H) that meet the input high (V_IH) and input low (V_IL) voltage levels.
   • Avoid exceeding the maximum input current ratings.

3. Output Signals:

   • The output signals (Y, Y) will be driven according to the propagation delay time (t_pd).
   • Ensure the load connected to the outputs does not exceed the maximum output current ratings.

4. Temperature Considerations:

   • Operate the device within the commercial temperature range (0掳C to 70掳C) for reliable performance.
   • Store the device within the storage temperature range (-55掳C to 150掳C).

5. Handling and Storage:

   • Handle the device with care to avoid static damage.
   • Store the device in a dry, cool environment to prevent moisture damage.

6. Testing and Troubleshooting:

   • Use a multimeter to verify the supply voltage and ground connections.
   • Check the input and output signals using an oscilloscope to ensure they meet the specified levels.
   • If the device does not function as expected, refer to the datasheet for additional troubleshooting tips or contact the manufacturer for support.

(For reference only)