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16 Mbit LPC Flash
SST49LF160C
Advance Information
DEVICE COMMANDS
Device operation is controlled by commands written to the
Command User Interface (CUI). Execution of a specific
command is handled by internal functions after a CUI
receives and processes the command. After power-up or a
TABLE 8: Software Command Sequence
Reset operation the device enters Read mode. Commands
consist of one or two sequential Bus-Write operations. The
commands are summarized in Table 8, “Software Com-
mand Sequence”.
Bus Cycles
First Bus Cycle
Second Bus Cycle
Command
Required
Oper
Addr 1
Data
Oper
Addr 1
Data
Read-Array/Reset
1
Write
X
FFH
Read-Software-ID 2 /
≥ 2
Write
X
90H
Read
IA 4
ID 5
Read-Security-ID 3
Read-Status-Register 3
2
Write
X
70H
Read
X
SRD 6
Clear-Status-Register
1
Write
X
50H
Sector-Erase 7
Block-Erase 7
Program 7 , 9
2
2
2
Write
Write
Write
X
X
X
30H
20H
40H
Write
Write
Write
SAx 8
BAx
WA 10
D0H
D0H
WD 11
or
10H
Program-/Erase-Suspend
Program-/Erase-Resume
1
1
Write
Write
X
X
B0H
D0H
User-Security-ID-Program 12
User-Security-ID-Program-Lockout
2
2
Write
Write
X
X
A5H
85H
Write
Write
WA 10
X
Data
00H
T8.0 1315
1. This value must be a valid address within the device Memory Address Space. X can be V IH or V IL, but no other value.
2. SST Manufacturer’s ID = BFH, is read with A 20 -A 0 = 0.
SST49LF160C Device ID = 4CH, is read with A 20 -A 1 = 0, A 0 = 1.
Following the Read-Software-ID/Read-Security-ID command,
Read operations access Manufacturer’s ID and Device ID or Security ID.
3. Following the Read-Software-ID/Read-Security-ID command, Read operations access manufacturer’s ID and Device ID or Security
ID. Read-Software-ID/Read-Security-ID and Read-Status-Register will return register data until another valid command is written.
4. IA = Device Identification Address/Security ID Address.
5. ID = Data read from identifier codes/Data read from Security ID
6. SRD = Data read from Status register
7. The sector or block must not be write-locked when attempting Erase or Program operations.
Attempts to issue an Erase or Program command to a write-locked sector/block will fail.
8. SA X for Sector-Erase Address
BA X for Block-Erase Address
9. The Program command operates on one byte at a time.
10. WA = Address of memory location to be written
11. WD = Data to be written at location WA
12. Valid addresses for the User Security ID space are from FFFC 0188H to FFFC 019FH.
?2006 Silicon Storage Technology, Inc.
16
S71315-00-000
4/06
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SST49LF160C-33-4C-NHE_
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