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参数资料
| 型号： | SST25LF020A-33-4I-SAE-T |
| 厂商： | Microchip Technology |
| 文件页数： | 10/27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
7. Block addresses for: use A MS -A 15 , remaining addresses can be V IL or V IH
8. To continue programming to the next sequential address location, enter the 8-bit command, AFH,
followed by the data to be programmed.
9. The Read-Status-Register is continuous with ongoing clock cycles until terminated by a low to high transition on CE#.
10. The Enable-Write-Status-Register (EWSR) instruction and the Write-Status-Register (WRSR) instruction must work in
conjunction of each other. The WRSR instruction must be executed immediately (very next bus cycle) after the EWSR
instruction to make both instructions effective.
11. Manufacturer’s ID is read with A 0 =0, and Device ID is read with A 0 =1. All other address bits are 00H. The Manufacturer
and Device ID output stream is continuous until terminated by a low to high transition on CE#
12. Device ID = 43H for SST25LF020A
Read (20 MHz)
The Read instruction supports up to 20 MHz, it outputs the data starting from the specified address
location. The data output stream is continuous through all addresses until terminated by a low to high
transition on CE#. The internal address pointer will automatically increment until the highest memory
address is reached. Once the highest memory address is reached, the address pointer will automati-
cally increment to the beginning (wrap-around) of the address space, i.e. for 2 Mbit density, once the
data from address location 3FFFFH had been read, the next output will be from address location
00000H.
The Read instruction is initiated by executing an 8-bit command, 03H, followed by address bits [A 23 -
A 0 ]. CE# must remain active low for the duration of the Read cycle. See Figure 5 for the Read
sequence.
CE#
MODE 3
0 1 2 3 4 5 6 7 8
15 16
23 24
31 32
39 40
47
48
55 56
63 64
70
SCK
MODE 0
SI
03
ADD.
ADD.
ADD.
SO
MSB
MSB
HIGH IMPEDANCE
N
D OUT
N+1
D OUT
N+2
D OUT
N+3
D OUT
N+4
D OUT
MSB
1242 F04.0
Figure 5: Read Sequence
?2011 Silicon Storage Technology, Inc.
10
DS25080A
11/11
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相关代理商/技术参数 |
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|---|---|
| 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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