SST89E554 SST [Silicon Storage Technology, Inc], SST89E554 Datasheet - Page 32

• Manufacturer Part Number: SST89E554
• Description: FlashFlex51 MCU
• Manufacturer: SST [Silicon Storage Technology, Inc]

©2001 Silicon Storage Technology, Inc.
FIGURE 4-10: P
Programs the start-up configuration bit SC0/SC1. Only a Chip-Erase will erase a programmed SC0/SC1 bit.
Prog-SC1 applies to SST89E554/SST89V554 only.
FIGURE 4-11: B
Reads the code byte from the addressed flash memory location if the security lock is not activated on that flash
memory block.
P3[5:4], P2[5:0]
P3[7:6], P2[7:6]
ALE/PROG#
PSEN#
P3[7:6], P2[7:6]
P3[5:4], P2[5:0]
RST
P3[3]
EA#
ALE/PROG#
PSEN#
ROG
YTE
RST
EA#
P0
P1
-V
-SC0 / P
ERIFY
T SU
T SU
ROG
T ES
-SC1
T AHA
SST89E564 / SST89V564 / SST89E554 / SST89V554
T OA
AL
32
T ADS
T ES
DO
T PROG
1100b
AH
5AH / AAH
T ALA
1001b
T DH
T PS
Preliminary Specifications
FlashFlex51 MCU
384 ILL F08.1
S71181-03-000 9/01
384 ILL F52.5
384