2 Mbit Flash + 1 Mbit SRAM ComboMemory
SST31LF021 / SST31LF021E
EOL Data Sheet
ADDRESS A17-0
BES#
BEF#
OE#
WE#
DQ7-0
VIH
HIGH-Z
TRC
TAA
TBE
TOE
TOLZ
TBLZ
TOH
DATA VALID
FIGURE 4: FLASH READ CYCLE TIMING DIAGRAM
TOHZ
TBHZ
DATA VALID
HIGH-Z
1137 F18.0
ADDRESS A17-0
WE#
TAS
OE#
BEF#
BES#
5555
TAH
TWP
2AAA
TWPH
5555
TCH
TCS
ADDR
INTERNAL PROGRAM OPERATION STARTS
TBP
TDH
TDS
DQ7-0
AA
SW0
55
SW1
A0
SW2
DATA
BYTE
(ADDR/DATA)
FIGURE 5: FLASH WE# CONTROLLED PROGRAM CYCLE TIMING DIAGRAM
1137 F04.0
©2007 Silicon Storage Technology, Inc.
13
S71137-06-EOL
05/07