Техническая Спецификация для Freescale Semiconductor Accelerometer Cube Demo MMA9559LKUBE MMA9559LKUBE

Sensors
Freescale Semiconductor, Inc.

21

The MMA955xL platform has 16 KB of internal flash memory. There are ROM functions that allow erase and programming of that 
memory. Chip supply voltage of 1.8 V is sufficient for the flash programming voltage.

The lower portion of the flash memory is occupied by Freescale factory firmware and is protected so that a user cannot erase it.

The size of the available flash memory varies between the different devices in the MMA955xL product family, as shown in the 
following figure.

The smallest block of memory that can be written is 4 bytes and those 4 bytes must be aligned on a 4-byte boundary. The largest 
block of memory that can be programmed is 128 bytes and the block must start at a 128-byte boundary.

Flash programming blocks must start on a 4-byte boundary and cannot cross a 128-byte page boundary.

Word depth

4096

Row size

128 bytes

Page erase size (Erase block size)

4 rows = 512 bytes

Maximum page programming size

1 row = 128 bytes

Minimum word programming size

4 bytes

Memory organization

4096 x 32 bits = 16 KB total

Endurance

20,000 cycles minimum

Data retention

> 100 years, at room temperature

  .%

8VHUILUPZDUH

*HVWXUHILUPZDUH

3HGRPHWHUILUPZDUH

)DFWRU\ILUPZDUH

%DVHILUPZDUH

)RXQGDWLRQILUPZDUH

  .%

   .%

 .%

MMA9550L

Motion-sensing

platform

MMA9551L

Gesture-sensing

platform

MMA9553L

Pedometer

platform

MMA9559L

High-flexibility

platform