FlashFlex51 MCU
SST89C54 / SST89C58
Preliminary Specifications
TSU
RST
TES
PSEN#
TADS
ALE/PROG#
TPROG
EA#
P3[3]
TBUP1
row address
byte address
P0
P3[7:6], P2[7:6]
16K/32K Block
4K Block
row address
byte address
DI
0110b
row address = A15: A6; byte address = A5:A0
row address = A15: A5; byte address = A4:A0
344 ILL F07.4
1
2
TDH
TDH
TDH
3
TBUPRCV
TBUP
TBUP
4
5
6
7
8
9
row address
byte address
DI
byte address
DI
F
IGURE
15: B
URST
-P
ROGRAM
Program the entire addressed row by burst programming each byte sequentially within the row if the byte location
has been successfully erased and not yet programmed. This operation is only allowed when the security lock is
not activated on that flash memory block.
TSU
RST
PSEN#
ALE/PROG#
EA#
TES
10
11
12
TOA
1100b
TAHA
P3[7:6], P2[7:6]
13
14
P0
P1
P3[5:4], P2[5:0]
F
IGURE
16: B
YTE
-V
ERIFY
AL
DO
TALA
15
AH
344 ILL F08.3
16
Read the code byte from the addressed flash memory location if the security lock is not activated on that flash
memory block.
漏 2000 Silicon Storage Technology, Inc.
344-2 8/00
25