K524G2GACB-A050 Datasheet, PDF (42/94 Pages) Samsung semiconductor – MCP MEMORY

K524G2GACB-A050
MCP MEMORY
5.0 DATA PROTECTION & POWER UP 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 1.1V. WP pin provides hardware protection and is recommended to be kept at VIL during power-up
and power-down. A recovery time of minimum 1ms is required before internal circuit gets ready for any command sequences as shown in Fig-
ure 17. The two step command sequence for program/erase provides additional software protection.
Figure 17. AC Waveforms for Power Transition
~ 1.5V
VCC
High
WP
~ 1.5V
WE
Don’t care
Ready/Busy
5 ms max
1ms
Operation
Invalid
Don’t care
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Revision 1.3
November 2009