K9F5608U0A-YCB0,K9F5608U0A-YIB0
FLASH MEMORY
Data Protection & Powerup sequence
The device is designed to offer protection from any involuntary program/erase during power-transitions. An internal voltage detector
disables all functions whenever Vcc is below about 2V. WP pin provides hardware protection and is recommended to be kept at VIL
during power-up and power-down and recovery time of minimum 1ms is required before internal circuit gets ready for any command
sequences as shown in Figure 13. The two step command sequence for program/erase provides additional software protection.
Figure 13. AC Waveforms for Power Transition
~ 2.5V
~ 2.5V
VCC
High
WP
WE
10ms
28
SAMSUNG [ SAMSUNG ]
