
84
Preliminary Specifications
FlashFlex51 MCU
SST89E52RD2 / SST89E54RD2 / SST89E58RD2 / SST89E516RD2
SST89V52RD2 / SST89V54RD2 / SST89V58RD2 / SST89V516RD2
2004 Silicon Storage Technology, Inc.
S71255-00-000
3/04
FIGURE 14-18: B
LOCK
-E
RASE
FOR
SST89E5
X
RD2/SST89V5
X
RD2
Erases one of the flash memory blocks, if the security lock is not activated on that flash memory block.
FIGURE 14-19: S
ECTOR
-E
RASE
Erases the addressed sector if the security lock is not activated on that flash memory block.
RST
PSEN#
ALE/PROG#
P3[3]
P3[7:6], P2[7:6]
P3[5:4], P2[5:0]
1101b
AH
TBE
TPROG
TSU
TADS
1255 F50.0
TES
TDH
EA#
RST
PSEN#
ALE/PROG#
P3[3]
P3[7:6], P2[7:6]
P3[5:4], P2[5:0]
1011b
AH
TSE
TPROG
TADS
1255 F51.0
P1
AL
TDH
TSU
TES
EA#