SST89C54-33-I-PI View Datasheet(PDF) - Silicon Storage Technology
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Description
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SST89C54-33-I-PI Datasheet PDF : 50 Pages
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FlashFlex51 MCU
SST89C54 / SST89C58
Preliminary Specifications
RST
PSEN#
ALE/PROG#
EA#
P3[3]
P3[7:6], P2[7:6]
P3[5:4], P2[5:0]
P1
TSU
TES
TADS
TPROG
TDH
TSE
1011b
AH
AL
FIGURE 13: SECTOR-ERASE
Erase the addressed sector if the security lock is not activated on that flash memory block.
344 ILL F05.4
RST
TSU
TES
PSEN#
ALE/PROG#
EA#
P3[3]
P3[5:4], P2[5:0]
P1
TADS
TPROG
TDH
TPB
AH
AL
P0
DI
P3[7:6], P2[7:6]
* See Table 4 for control signal assignments for PROG-SBx and PROG-RBx.
1110b*
344 ILL F06.6
FIGURE 14: BYTE-PROGRAM; PROG-SB3, PROG-SB2, PROG-SB1, PROG-RB1 AND PROG-RB0
Program the addressed code byte if the byte location has been successfully erased and not yet programmed. Byte-
Program operation is only allowed when the security lock is not activated on that flash memory block.
© 2000 Silicon Storage Technology, Inc.
24
344-2 8/00
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