SST49LF160C Datasheet, PDF (15/37 Pages) Silicon Storage Technology, Inc – 16 Mbit LPC Flash

16 Mbit LPC Flash
SST49LF160C
Device Commands
EOL Data Sheet
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 com-
mand. After power-up or a 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”.
Table 8: Software Command Sequence
Command
Bus Cycles
Required
First Bus Cycle
Oper Addr¹ Data
Second Bus Cycle
Oper Addr¹ Data
Read-Array/Reset
Read-Software-ID²/
Read-Security-ID³
Read-Status-Register³
1
Write
X
FFH
2
Write
X
90H Read
IA⁴
ID⁵
2
Write
X
70H Read
X
SRD⁶
Clear-Status-Register
Sector-Erase⁷
Block-Erase⁷
Program⁷,⁹
1
Write
X
50H
2
Write
X
30H Write SAx⁸ D0H
2
Write
X
20H Write BAx D0H
2
Write
X
40H
Write WA¹⁰ WD¹¹
or
10H
Program-/Erase-Suspend
1
Write
X
B0H
Program-/Erase-Resume
User-Security-ID-Program¹²
1
Write
X
D0H
2
Write
X
A5H Write WA¹⁰ Data
User-Security-ID-Program-Lockout
2
Write
X
85H Write
X
00H
T8.0 25099
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 A₂₀-A₀ = 0.
SST49LF160C Device ID = 4CH, is read with A₂₀-A₁ = 0, A₀ = 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.
© 2016
DS20005099B
02/16
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