MLX90255LUF-2 MELEXIS [Melexis Microelectronic Systems], MLX90255LUF-2 Datasheet - Page 7

• Manufacturer Part Number: MLX90255LUF-2
• Description: Relative Integrated Pressure Sensor
• Manufacturer: MELEXIS [Melexis Microelectronic Systems]

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Programming in Temporary Memory
The programming is done through the connector: only the application pins (supply, ground and output)
need to be used. The programming can be enabled by forcing the supply high enough (VCC_T). Through
the OUT pin one can input the data. The data is Pulse Width Modulated.
At the end of the programming, keep OUT high until VCC has reached its normal level (VCC_N).
Thereafter disconnect OUT. The time in between should be less than 100us.
Zapping of the Permanent Memory
Only 1 bit can be zapped at a time. First program 1 bit to ‘1’. A higher supply (VCC_Z) is needed to be
able to zap the bit. The zapping is done when OUT is high (OUT_Z).
A high current will flow during the zapping. It is recommended to limit this current to 200mA.
The memlock-bit should be zapped as last bit, as this disables programming function.
3901090257
Rev. 006
9. Die dimension and pad coordinates
10.
Calibration and Programming Procedure
Page 7 of 9
Relative Integrated Pressure Sensor
MLX90257
Data Sheet
Mar/08