Details

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BUY MM74C922WM https://www.utsource.net/itm/p/12404062.html

Parameter	Description	Value/Range
Device Type	Quad 2-line to 4-line decoder with strobe and latch inputs	MM74C922WM
Operating Voltage (Vcc)	Supply voltage range	4.5 V to 18 V
Input Voltage (VIH)	High-level input voltage	Min: 2 V, Max: Vcc
Input Voltage (VIL)	Low-level input voltage	Max: 0.8 V
Output Current	Continuous output current	±25 mA
Power Dissipation	Total power dissipation	360 mW
Operating Temperature	Junction temperature range	-40°C to +85°C
Storage Temperature	Storage temperature range	-65°C to +150°C
Package Type	Package style	DIP-16, SOIC-16

Instructions for Use:

1. Power Supply Connection:

   • Connect the Vcc pin to the positive supply voltage (4.5 V to 18 V).
   • Connect the GND pin to the ground.

2. Input Configuration:

   • The device has four inputs (A, B, C, D) that can be configured as either active high or active low depending on the application.
   • Ensure that the input voltages do not exceed the specified VIH and VIL levels to prevent damage.

3. Output Handling:

   • Outputs are active low and can sink up to 25 mA of current.
   • When using the outputs to drive LEDs or other devices, ensure that appropriate current-limiting resistors are used.

4. Strobe and Latch Inputs:

   • The strobe input (STB) must be pulsed low to enable the decoding process.
   • The latch input (LTCH) holds the last decoded output state when set high.

5. Temperature Considerations:

   • Ensure that the operating temperature does not exceed the specified range to maintain reliable operation.
   • For extended storage, keep the device within the storage temperature limits.

6. Decoding Logic:

   • Refer to the specific decoding logic table provided in the datasheet to understand how inputs translate to outputs based on the strobe and latch conditions.

7. Handling Precautions:

   • Handle the component carefully to avoid static damage.
   • Follow standard ESD handling procedures during installation and testing.

(For reference only)