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參數資料
| 型號： | SST26WF032-80-4I-QAE |
| 廠商： | SILICON STORAGE TECHNOLOGY INC |
| 元件分類： | PROM |
| 英文描述： | 32M X 1 SPI BUS SERIAL EEPROM, PDSO8 |
| 封裝： | 6 X 5 MM, ROHS COMPLIANT, WSON-8 |
| 文件頁數： | 33/36頁 |
| 文件大?。?/td> | 1339K |
| 代理商： | SST26WF032-80-4I-QAE |
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2010 Silicon Storage Technology, Inc.
S71409-01-000
01/10
6
1.8V Serial Quad I/O (SQI) Flash Memory
SST26WF032
Advance Information
Device Operation
The SST26WF032 supports both Serial Peripheral Interface (SPI) bus protocol and the new 4-bit mul-
tiplexed Serial Quad I/O (SQI) bus protocol. To provide backward compatibility to traditional SPI Serial
Flash devices, the device’s initial state after a power-on reset is SPI bus protocol supporting only
Read, High Speed Read, and JEDEC-ID Read instructions. A command instruction configures the
device to Serial Quad I/O bus protocol. The dataflow in this bus protocol is controlled with four multi-
plexed I/O signals, a chip enable (CE#), and serial clock (SCK).
SQI Flash Memory protocol supports both Mode 0 (0,0) and Mode 3 (1,1) bus operations. The differ-
bus master is in Stand-by mode and no data is being transferred. The SCK signal is low for Mode 0
and SCK signal is high for Mode 3. For both modes, the Serial Data I/O (SIO[3:0]) is sampled at the ris-
ing edge of the SCK clock signal for input, and driven after the falling edge of the SCK clock signal for
output. The traditional SPI protocol uses separate input (SI) and output (SO) data signals as shown in
Figure 4. The SST26WF032 uses four multiplexed signals, SIO[3:0], for both data in and data out, as
shown in Figure 5. This quadruples the traditional bus transfer speed at the same clock frequency,
without the need for more pins on the package.
Figure 4: SPI Protocol (Traditional 25 Serial SPI Device)
Figure 5: SQI Serial Quad I/O Protocol
1409 F03.0
MODE 3
SCK
SI
SO
CE#
MODE 3
DON'T CARE
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
MODE 0
HIGH IMPEDANCE
MSB
1409 F04.1
MODE 3
CLK
SIO(3:0)
CE#
MODE 3
C1
C0
A5
A4
A3
A2
A1
A0
H0
L0
H1
L1
H2
L2
H3
L3
MODE 0
MSB
X = Don’t Care or High Impediance
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SST26WF032-80-4I-QAE-T | 制造商:Microchip Technology Inc 功能描述:1.65 TO 1.95V 32MBIT SERIAL QUAD I/O FLASH - Tape and Reel |
| SST26WF032-80-4I-S2AE | 功能描述:閃存 1.65 to 1.95V 32Mbit Serial Quad I/O Flsh RoHS:否 制造商:ON Semiconductor 數據總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結構:256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| SST26WF032-80-4I-S2AE-T | 制造商:Microchip Technology Inc 功能描述:1.65 TO 1.95V 32MBIT SERIAL QUAD I/O FLASH - Tape and Reel |
| SST270 | 功能描述:JFET 45V 2mA RoHS:否 制造商:ON Semiconductor 晶體管極性:N-Channel 漏極電流（Vgs=0 時的 Idss）:50 mA 漏源電壓 VDS:15 V 閘/源擊穿電壓: 漏極連續(xù)電流:50 mA 配置: 安裝風格: 封裝 / 箱體:SC-59 封裝:Reel |
| SST270-E3 | 功能描述:JFET 45V 2mA RoHS:否 制造商:ON Semiconductor 晶體管極性:N-Channel 漏極電流（Vgs=0 時的 Idss）:50 mA 漏源電壓 VDS:15 V 閘/源擊穿電壓: 漏極連續(xù)電流:50 mA 配置: 安裝風格: 封裝 / 箱體:SC-59 封裝:Reel |
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