CXP973F064 View Datasheet(PDF) - Sony Semiconductor
Part Name
Description
MFG CO.
'CXP973F064' PDF : 42 Pages View PDF
CXP973F064
Notes on PK6 Usage
FLASH EEPROM incorporated PK6 is also used as flash mode setting function. Note the followings:
1. "H" is output to PK6 during a reset. That is driven at comparatively high impedance (approximately 150kΩ),
and take care that VOH should not fall under 0.7VDD by the partial pressure with external circuit load
impedance.
2. When using software reset functions, PK6 may not rise enough during a reset. Switching PK6 to "H" output
prior to software reset execution or connecting pull-up resistor is recommended.
RST
PK6
Keep PK6 above 0.7VDD
during this period.
Normal operation
Flash mode
Mask ROM and piggy/evaluation chip do not have flash mode setting function. Considering that FLASH
EEPROM incorporated type is used, above countermeasure should be performed.
Limits on Usage of FLASH EEPROM incorporated Type
The main clock doubler circuit is not guaranteed to operate.
– 38 –
Share Link: 
