Details

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BUY MB90F394H https://www.utsource.net/itm/p/12620625.html

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VCC)	Operating voltage range	2.0	-	5.5	V
Operating Temperature	Temperature range for operation	-40	-	85	°C
Storage Temperature	Temperature range for storage	-65	-	150	°C
Maximum Current per I/O Pin	Maximum current that can be sourced or sunk by each I/O pin	-	-	20	mA
Maximum Current for VCC and GND Pins	Total current that can be drawn from VCC and GND pins	-	-	100	mA
Digital Input Voltage (VIH)	High-level input voltage	0.7 * VCC	-	VCC	V
Digital Input Voltage (VIL)	Low-level input voltage	0	-	0.3 * VCC	V
Digital Output High Voltage (VOH)	High-level output voltage	0.9 * VCC	-	VCC - 0.4	V
Digital Output Low Voltage (VOL)	Low-level output voltage	0	-	0.4	V
Clock Frequency (fOSC)	Maximum clock frequency	-	-	20	MHz
Flash Memory Size	Size of flash memory	-	32	-	KB
RAM Size	Size of RAM	-	2	-	KB
Number of I/O Pins	Total number of I/O pins available	-	20	-	-
Package Type	Available package types	-	DIP-20, QFP-20	-	-

Instructions for Using MB90F394H:

1. Power Supply:

   • Ensure the supply voltage (VCC) is within the specified range (2.0V to 5.5V).
   • Connect the VCC pin to the positive power supply and the GND pin to ground.

2. Temperature Considerations:

   • Operate the device within the temperature range of -40°C to 85°C.
   • Store the device within the temperature range of -65°C to 150°C.

3. Current Limits:

   • Do not exceed 20mA per I/O pin.
   • The total current drawn from VCC and GND should not exceed 100mA.

4. Digital Inputs:

   • For a high-level input, ensure the voltage is between 0.7 * VCC and VCC.
   • For a low-level input, ensure the voltage is between 0 and 0.3 * VCC.

5. Digital Outputs:

   • The high-level output voltage (VOH) will be between 0.9 * VCC and VCC - 0.4V.
   • The low-level output voltage (VOL) will be between 0 and 0.4V.

6. Clock Configuration:

   • Set the clock frequency (fOSC) to a maximum of 20MHz.
   • Use an appropriate external oscillator or internal clock source as needed.

7. Memory Usage:

   • Utilize the 32KB of flash memory for program storage.
   • Use the 2KB of RAM for data storage and variables.

8. I/O Pin Configuration:

   • Configure the I/O pins as inputs or outputs as required by your application.
   • Use the available 20 I/O pins for interfacing with other components.

9. Package Selection:

   • Choose the appropriate package type (DIP-20 or QFP-20) based on your design requirements.

10. Programming and Debugging:

    • Use a suitable programming tool to upload code to the flash memory.
    • Utilize debugging features to test and verify the functionality of your application.

For detailed programming and specific application notes, refer to the datasheet and application notes provided by the manufacturer.

(For reference only)