SST89E554 SST [Silicon Storage Technology, Inc], SST89E554 Datasheet - Page 28

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

4.1.7 Flash Memory Programming Timing Diagrams with External Host Mode
©2001 Silicon Storage Technology, Inc.
FIGURE
Reads chip signature and identification registers at the addressed location.
FIGURE
Enables the selection of either of the flash memory blocks prior to issuing a Byte-Verify, Block-Erase, Sector-
Erase, or Byte-Program. These commands apply to SST89E564/SST89V564 only.
P3[5:4], P2[5:0]
P3[7:6], P2[7:6]
ALE/PROG#
P3[5:4] ,P2[5:0] ,P1
PSEN#
RST
P3[3]
EA#
4-2: R
4-3: S
P2[7:6] ,P3[7:6]
ALE/PROG#
ELECT
EAD
PSEN#
-ID
RST
EA#
-B
P0
LOCK
Device ID = 93H for SST89E564
T SU
1 / S
T SU
ELECT
92H for SST89V564
9BH for SST89E554
9AH for SST89V554
SST89E564 / SST89V564 / SST89E554 / SST89V554
-B
LOCK
T ES
0
T ADS
28
0030H
T ES
0000b
BFH
T RD
T PROG
A5H/55H
1001b
Device ID
0031H
0000b
T RD
T PSB
T DH
Preliminary Specifications
FlashFlex51 MCU
384 ILL F02.3
S71181-03-000 9/01
384 ILL F56.1
384