MAS6512 datasheet(16/32 Pages) MAS

16 / 32 page

DA6512.003

2 December, 2016

16 (32)

EEPROM WRITE PROCEDURE

Figure 3. Flow chart for MAS6512 EEPROM write

Important note: Before EEPROM programming make sure that in the Test register (E1/61HEX) the SOSC=00 is

selected. That selects 200 kHz system clock frequency which is required for the proper EEPROM programming

pulses. This condition is guaranteed by making device reset either using the reset register (E0/60HEX) or the

XCLR pin.

Note: In the “VERIFY WRITTEN DATA” step it could be also additionally checked that the EEPROM status

START

INITIAL CONDITIONS

Reset device by XCLR or

by writing any data to the reset register E0/60HEX

POWER UP DEVICE

Connect supply voltage VDD

ENABLE EEPROM WRITE

Write 04HEX to the EEPROM write enable register E9/69HEX

WAIT

Wait minimum 16ms after writing byte (8-bit) to EEPROM

STOP

DISABLE EEPROM WRITE

Write 00HEX to the EEPROM write enable register E9/69HEX

WRITE DATA TO EEPROM

Write data byte (8-bit) to selected EEPROM memory address

Write more data?

yes

VERIFY WRITTEN DATA

Read the written data byte (8-bit) from the EEPROM memory address

MAS6512 数据表(PDF) 16 Page - Micro Analog systems