hn58x2502fpie Renesas Electronics Corporation., hn58x2502fpie Datasheet - Page 18

• Manufacturer Part Number: hn58x2502fpie
• Description: Serial Peripheral Interface Electrically Erasable And Programmable Read Only Memory
• Manufacturer: Renesas Electronics Corporation.

HN58X2502I/HN58X2504I
Notes
Data Protection at V
When V
the EEPROM to unintentional program mode. To prevent this unintentional programming, this EEPROM have a power
on reset function. Be careful of the notices described below in order for the power on reset function to operate
correctly.
Rev.2.00, Jul.05.2005, page 18 of 20
• S should be fixed to V
• V
• V
• V
• When WRSR or WRITE instruction is executed before V
CC
cause the trigger for the unintentional programming.
programming mode.
write cycle time (t
CC
CC
CC
is turned on or off, noise on S inputs generated by external circuits (CPU, etc) may act as a trigger and turn
should be turned on/off after the EEPROM is placed in a standby state.
should be turned on from the ground level (V
turn on speed should be slower than 10 µs/V.
CC
On/Off
W
).
CC
during V
CC
on/off. Low to high or high to low transition during V
SS
) in order for the EEPROM not to enter the unintentional
CC
turns off, V
CC
should be turned off after waiting
CC
on/off may