K522H1HACF-B050 Datasheet, PDF (42/94 Pages) Samsung semiconductor – MCP Specification

K522H1HACF-B050
datasheet
Rev. 1.0
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 100μs is required before internal circuit gets ready for any command sequences as shown in Figure 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
100μs
Operation
Invalid
Don’t care
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