16 Mbit Concurrent SuperFlash + 2 / 4 Mbit SRAM ComboMemory
SST34HF1621 / SST34HF1641
Data Sheet
THREE-BYTE SEQUENCE FOR
SOFTWARE ID ENTRY
ADDRESS A
5555
2AAA
5555
0000
0001
14-0
BEF#
OE#
T
IDA
T
WP
WE#
T
WPH
T
AA
DQ
15-0
Device ID
XXAA
SW0
XX55
SW1
XX90
SW2
00BF
523 ILL F12.5
Device ID = 2761H for SST34HF1621 and 2761H for SST34HF1641
Note: X can be V or V , but no other value
IL IH
FIGURE 14: FLASH SOFTWARE ID ENTRY AND READ
THREE-BYTE SEQUENCE FOR
CFI QUERY ENTRY
ADDRESS A
5555
2AAA
5555
14-0
BEF#
OE#
T
IDA
T
WP
WE#
T
WPH
T
AA
DQ
15-0
XXAA
SW0
XX55
SW1
XX98
SW2
523 ILL F13.1
Note: X can be V or V , but no other value.
IL IH
FIGURE 15: FLASH CFI ENTRY AND READ
©2001 Silicon Storage Technology, Inc.
S71172-05-000 10/01 523
22