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参数资料
| 型号： | SST25LF020A-33-4I-SAE-T |
| 厂商： | Microchip Technology |
| 文件页数： | 9/27页 |
| 文件大小： | 0K |
| 描述： | IC FLASH SER 2MB 33HZ SPI 8SOIC |
| 标准包装： | 2,000 |
| 系列： | SST25 |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 2M (256K x 8) |
| 速度： | 33MHz |
| 接口： | SPI 串行 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
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2 Mbit SPI Serial Flash
A Microchip Technology Company
SST25LF020A
Not Recommended for New Designs
Instructions
Instructions are used to Read, Write (Erase and Program), and configure the SST25LF020A. The
instruction bus cycles are 8 bits each for commands (Op Code), data, and addresses. Prior to execut-
ing any Byte-Program, Auto Address Increment (AAI) programming, Sector-Erase, Block-Erase, or
Chip-Erase instructions, the Write-Enable (WREN) instruction must be executed first. The complete list
of the instructions is provided in Table 5. All instructions are synchronized off a high to low transition of
CE#. Inputs will be accepted on the rising edge of SCK starting with the most significant bit. CE# must
be driven low before an instruction is entered and must be driven high after the last bit of the instruction
has been shifted in (except for Read, Read-ID and Read-Status-Register instructions). Any low to high
transition on CE#, before receiving the last bit of an instruction bus cycle, will terminate the instruction
in progress and return the device to the standby mode. Instruction commands (Op Code), addresses,
and data are all input from the most significant bit (MSB) first.
Table 5: Device Operation Instructions 1
Cycle Type/
Max
Freq
1
2
Bus Cycle 4
3
4
5
6
Operation 2,3
MHz
S IN
S OUT
S IN
S OUT
S IN
S OUT
S IN
S OUT S IN
S OUT
S IN S OUT
Read
20
03H
Hi-Z
A 23 -
Hi-Z
A 15 -
Hi-Z
A 7 -A 0
Hi-Z
X
D OUT
A 16
A 8
High-Speed-Read
0BH
Hi-Z
A 23 -
Hi-Z
A 15 -
Hi-Z
A 7 -A 0
Hi-Z
X
X
X
D OUT
A 16
A 8
Sector-Erase 5,6
20H
Hi-Z
A 23 -
Hi-Z
A 15 -
Hi-Z
A 7 -A 0
Hi-Z
-
-
A 16
A 8
Block-Erase 5,7
52H
Hi-Z
A 23 -
Hi-Z
A 15 -
Hi-Z
A 7 -A 0
Hi-Z
-
-
A 16
A 8
Chip-Erase 6
Byte-Program 6
60H
02H
Hi-Z
Hi-Z
-
A 23 -
-
Hi-Z
-
A 15 -
-
Hi-Z
-
A 7 -A 0
-
Hi-Z
-
D IN
-
Hi-Z
A 16
A 8
Auto Address Increment
AFH
Hi-Z
A 23 -
Hi-Z
A 15 -
Hi-Z
A 7 -A 0
Hi-Z
D IN
Hi-Z
(AAI) Single-Byte
Program 6,8
Read-Status-Register
(RDSR)
Enable-Write-Status-
33
05H
50H
Hi-Z
Hi-Z
A 16
X
-
D OUT
-
A 8
-
-
Note
9
-
-
-
Note
9
-
-
-
Note 9
-
Register
(EWSR) 10
Write-Status-Register
01H
Hi-Z
Data
Hi-Z
-
-
-.
-
-
-
(WRSR) 10
Write-Enable (WREN)
Write-Disable (WRDI)
Read-ID
06H
04H
90H
or
Hi-Z
Hi-Z
Hi-Z
-
-
00H
-
-
Hi-Z
-
-
00H
-
-
Hi-Z
-
-
ID
Addr
-
-
Hi-Z
-
-
X
-
-
D OUT
12
ABH
11
T5.0 25080
1. A MS = Most Significant Address
A MS = A 17 for SST25LF020A
Address bits above the most significant bit of each density can be V IL or V IH
2. Operation: S IN = Serial In, S OUT = Serial Out
3. X = Dummy Input Cycles (V IL or V IH ); - = Non-Applicable Cycles (Cycles are not necessary)
4. One bus cycle is eight clock periods.
5. Sector addresses: use A MS -A 12 , remaining addresses can be V IL or V IH
6. Prior to any Byte-Program, AAI-Program, Sector-Erase, Block-Erase, or Chip-Erase operation, the Write-Enable
(WREN) instruction must be executed.
?2011 Silicon Storage Technology, Inc.
9
DS25080A
11/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST25LF040A | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:2 Mbit / 4 Mbit SPI Serial Flash |
| SST25LF040A-33-4C-QAE | 功能描述:闪存 4Mbit 33MHz RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| SST25LF040A-33-4C-S2AE | 功能描述:闪存 4Mbit 33MHz RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| SST25LF040A-33-4C-SAE | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:2 Mbit / 4 Mbit SPI Serial Flash |
| SST25LF040A-33-4E-QAE | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:2 Mbit / 4 Mbit SPI Serial Flash |
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