SST25LF020A-33-4I-SA Microchip Technology, SST25LF020A-33-4I-SA Datasheet - Page 12
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SST25LF020A-33-4I-SA
Manufacturer Part Number
SST25LF020A-33-4I-SA
Description
Flash RO 804-25LF020AESA
Manufacturer
Microchip Technology
Datasheet
1.SST25LF020A-33-4E-SAE.pdf
(25 pages)
Specifications of SST25LF020A-33-4I-SA
Product Category
Flash
Memory Type
NAND Flash
Memory Size
2 Mbit
Architecture
Sectored
Interface Type
SPI
Access Time
33 ns
Supply Voltage - Max
3.6 V
Supply Voltage - Min
3 V
Maximum Operating Current
10 mA
Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOIC-8
Organization
32 KB
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Data Sheet
Auto Address Increment (AAI) Program
The AAI program instruction allows multiple bytes of data to
be programmed without re-issuing the next sequential
address location. This feature decreases total program-
ming time when the entire memory array is to be pro-
grammed. An AAI program instruction pointing to a
protected memory area will be ignored. The selected
address range must be in the erased state (FFH) when ini-
tiating an AAI program instruction.
Prior to any write operation, the Write-Enable (WREN)
instruction must be executed. The AAI program instruction
is initiated by executing an 8-bit command, AFH, followed
by address bits [A
is input sequentially from MSB (bit 7) to LSB (bit 0). CE#
must be driven high before the AAI program instruction is
executed. The user must poll the BUSY bit in the software
©2010 Silicon Storage Technology, Inc.
SCK
SCK
CE#
CE#
FIGURE 8: Auto Address Increment (AAI) Program Sequence
SO
SI
SI
MODE 3
MODE 0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1 2 3 4 5 6 7 8
23
-A
AF
AF
0
]. Following the addresses, the data
A[23:16] A[15:8]
Last Data Byte
15 16
23 24
A[7:0]
31
T
32 33 34 35 36 37 38 39
BP
Data Byte 1
0 1 2 3 4 5 6 7
Write Disable (WRDI)
Instruction to terminate
AAI Operation
12
04
status register or wait T
nal self-timed Byte-Program cycle. Once the device com-
pletes programming byte, the next sequential address may
be program, enter the 8-bit command, AFH, followed by the
data to be programmed. When the last desired byte had
been programmed, execute the Write-Disable (WRDI)
instruction, 04H, to terminate AAI. After execution of the
WRDI command, the user must poll the Status register to
ensure the device completes programming. See Figure 8
for AAI programming sequence.
There is no wrap mode during AAI programming; once the
highest unprotected memory address is reached, the
device will exit AAI operation and reset the Write-Enable-
Latch bit (WEL = 0).
T
BP
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Read Status Register (RDSR)
Instruction to verify end of
AAI Operation
AF
05
BP
2 Mbit SPI Serial Flash
for the completion of each inter-
Data Byte 2
D
OUT
SST25LF020A
S71242-07-000
T BP
0 1
1242 F07.0
01/10