mx25l12855e Macronix International Co., mx25l12855e Datasheet - Page 37

• Manufacturer Part Number: mx25l12855e
• Description: Secured Serial Flash
• Manufacturer: Macronix International Co.

P/N: PM1466
POWER-ON STATE
The device is at below states when power-up:
The device must not be selected during power-up and power-down stage unless the VCC achieves below correct
level:
Please note that a pull-up resistor on CS# may ensure a safe and proper power-up/down level.
An internal Power-on Reset (POR) circuit may protect the device from data corruption and inadvertent data change
during power up state.
For further protection on the device, if the VCC does not reach the VCC minimum level, the correct operation is not
guaranteed. The read, write, erase, and program command should be sent after the below time delay:
The device can accept read command after VCC reached VCC minimum and a time delay of tVSL.
Please refer to the figure of "Power-up Timing".
Note:
- To stabilize the VCC level, the VCC rail decoupled by a suitable capacitor close to package pins is recommended.
(generally around 0.1uF)
- Standby mode ( please note it is not Deep Power-down mode)
- Write Enable Latch (WEL) bit is reset
- VCC minimum at power-up stage and then after a delay of tVSL
- GND at power-down
- tVSL after VCC reached VCC minimum level
37
MX25L12855E
REV. 0.05, MAR. 05, 2009