- 您现在的位置：买卖IC网 > PDF目录4234 > SST39WF800B-70-4I-B3KE-T (Microchip Technology)IC FLASH MPF 8MBIT 70NS 48TFBGA PDF资料下载
参数资料
| 型号： | SST39WF800B-70-4I-B3KE-T |
| 厂商： | Microchip Technology |
| 文件页数： | 7/33页 |
| 文件大小： | 0K |
| 描述： | IC FLASH MPF 8MBIT 70NS 48TFBGA |
| 标准包装： | 2,500 |
| 系列： | SST39 MPF™ |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 8M（512K x 16） |
| 速度： | 70ns |
| 接口： | 并联 |
| 电源电压： | 1.65 V ~ 1.95 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 48-TFBGA |
| 供应商设备封装： | 48-TFBGA |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页当前第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
8 Mbit (x16) Multi-Purpose Flash
A Microchip Technology Company
SST39WF800B
Data Sheet
Sector-/Block-Erase Operation
The SST39WF800B offers both Sector-Erase and Block-Erase modes which allow the system to erase
the device on a sector-by-sector, or block-by-block, basis.
The sector architecture is based on uniform sector size of 2 KWord. Initiate the Sector-Erase operation
by executing a six-byte command sequence with Sector-Erase command (30H) and sector address
(SA) in the last bus cycle.
The Block-Erase mode is based on uniform block size of 32 KWord. Initiate the Block-Erase operation
by executing a six-byte command sequence with Block-Erase command (50H) and block address (BA)
in the last bus cycle.
The sector or block address is latched on the falling edge of the sixth WE# pulse, while the command
(30H or 50H) is latched on the rising edge of the sixth WE# pulse. The internal Erase operation begins
after the sixth WE# pulse.
The End-of-Erase operation can be determined using either Data# Polling or Toggle Bit methods. See
Figures 10 and 11 for timing waveforms. Any commands issued during the Sector- or Block-Erase
operation are ignored.
Chip-Erase Operation
The SST39WF800B provides a Chip-Erase operation, which allows the user to erase the entire mem-
ory array to the ‘1’ state. This is useful when the entire device must be quickly erased.
Initiate the Chip-Erase operation by executing a six-byte command sequence with Chip-Erase com-
mand (10H) at address 5555H in the last byte sequence.
The Erase operation begins with the rising edge of the sixth WE# or CE#, whichever occurs first. Dur-
ing the Erase operation, the only valid read is Toggle Bit or Data# Polling. See Table 4 for the command
sequence, Figure 9 for the timing diagram, and Figure 20 for the flowchart. Any commands issued dur-
ing the Chip-Erase operation are ignored.
Write Operation Status Detection
To optimize the system write cycle time, the SST39WF800B provides two software means to detect the
completion of a Program or Erase write cycle. The software detection includes two status bits—Data#
Polling (DQ 7 ) and Toggle Bit (DQ 6 ). The End-of-Write detection mode is enabled after the rising edge
of WE#, which initiates the internal Program or Erase operation.
The completion of the nonvolatile Write is asynchronous with the system; therefore, either a Data#
Polling or Toggle Bit read may occur simultaneously with the completion of the Write cycle. If this
occurs, the system may get an erroneous result, i.e., valid data may appear to conflict with either DQ 7
or DQ 6 . To prevent spurious rejection in the event of an erroneous result, the software routine must
include a loop to read the accessed location an additional two (2) times. If both Reads are valid, then
the device has completed the Write cycle, otherwise the rejection is valid.
?2011 Silicon Storage Technology, Inc.
7
DS25031A
08/11
相关PDF资料 |
PDF描述 |
|---|---|
| XC4VLX15-12FFG668C | IC FPGA VIRTEX-4 LX 15K 668FCBGA |
| SST39WF400B-70-4I-B3KE | IC FLASH MPF 4MBIT 70NS 48TFBGA |
| XC4VLX25-10SF363I | IC FPGA VIRTEX-4LX 363FCBGA |
| XC4VLX25-11SFG363C | IC FPGA VIRTEX-4 LX 25K 363FCBGA |
| 25LC512T-I/MF | IC EEPROM 512KBIT 20MHZ 8DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SST39WF800B-70-4I-C2QE | 功能描述:闪存 1.65 to 1.95V 8Mbit Multi-Purpose 闪存 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 |
| SST39WF800B-70-4I-MAQE | 功能描述:闪存 1.65 to 1.95V 8Mbit Multi-Purpose 闪存 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 |
| SST3A(T/R) | 制造商:Bel Fuse 功能描述:FUSE SST SERIES |
| SST3I-C | 功能描述:电缆束带 Cable Tie 2-Piece 11.0"L (279mm) Inte RoHS:否 制造商:Phoenix Contact 产品:Cable Tie Mounts 类型:Adhesive 颜色:Black 材料:Acrylonitrile Butadiene Styrene (ABS) 长度:19 mm 宽度:19 mm 抗拉强度: |
| SST3I-C0 | 功能描述:电缆束带 Cable Tie, 2-Piece, 11.0"L (279mm), Inte RoHS:否 制造商:Phoenix Contact 产品:Cable Tie Mounts 类型:Adhesive 颜色:Black 材料:Acrylonitrile Butadiene Styrene (ABS) 长度:19 mm 宽度:19 mm 抗拉强度: |
发布紧急采购，3分钟左右您将得到回复。