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参数资料
| 型号： | SST38VF6404-90-5I-EKE |
| 厂商： | Microchip Technology |
| 文件页数： | 22/64页 |
| 文件大小： | 0K |
| 描述： | IC FLASH MPF 64MBIT 90NS 48TSOP |
| 特色产品： | SST Serial and Parallel Flash Memory |
| 标准包装： | 96 |
| 系列： | SST38 |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 64M（4M x 16） |
| 速度： | 90ns |
| 接口： | 并联 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 48-TFSOP（0.724"，18.40mm 宽） |
| 供应商设备封装： | 48-TSOP |
| 包装： | 托盘 |
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64 Mbit (x16) Advanced Multi-Purpose Flash Plus
A Microchip Technology Company
SST38VF6401 / SST38VF6402 / SST38VF6403 / SST38VF6404
Data Sheet
Irreversible Block Locking
The SST38VF6401/6402/6403/6404 provides Irreversible Block Locking, a feature that allows users to
customize the size of Read-Only Memory (ROM) on the device and provides more flexibility than One-
Time Programmable (OTP) memory.
Applying Irreversible Block Locking turns user-selected memory areas into ROM by permanently dis-
abling Program and Erase operations to these chosen areas. Any area that becomes ROM cannot be
changed back to Flash.
Any memory blocks in the main memory, including boot blocks, can be irreversibly locked. In non-uni-
form boot block devices (SST38VF6403 and SST38VF6404) each 4 KW sector in the boot area can be
irreversibly locked. If desired, all blocks in the main memory can be irreversibly locked.
To use Irreversible Block Locking do the following:
1.
2.
3.
4.
5.
Global Lock Bit should be ‘1’. The Irreversible Block Lock command is disabled when
Global Lock Bit is ‘0’.
Enter the Non-Volatile Block Protection mode.
Use the NVPB Program command to protect only the blocks that are to be changed into
ROM.
Exit the Non-Volatile Block Protection mode.
Issue the Irreversible Block Lock command (see Table 11 for details).
The Irreversible Block Lock command can only be used once. Issuing the command after the first time
has no effect on the device.
Important: Once the Irreversible Block Lock command is used, the state of the NVPBs can no longer
be changed or overridden. Therefore, the following features no longer have any effect on the device:
?
?
?
?
?
Global Lock of NVPBs feature
Password feature
NVPB Program command
NVPB Erase command
DQ2 and DQ1 of PSR
In addition, WP# has no effect on any memory in the boot block area that has been irreversibly locked.
To verify whether the Irreversible Block Lock command has already been issued, enter the Product ID
mode and read address 5FEH. If DQ 0 = 0, then Irreversible Block Lock has already been executed.
When using this feature to determine if a specific block is ROM, use the NVPB Status Read.
?2011 Silicon Storage Technology, Inc.
22
DS-25015A
04/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST38VF6404B | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64 Mbit (x16) Advanced Multi-Purpose Flash Plus |
| SST38VF6404B-70-5I-B3KE | 功能描述:闪存 2.7- 3.6V 64Mbit pm Parallel Advance MPF 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 |
| SST38VF6404B-70-5I-B3KE-T | 功能描述:闪存 2.7- 3.6V 64Mbit pm Parallel Advance MPF 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 |
| SST38VF6404B-70-5I-CD | 制造商:Microchip Technology Inc 功能描述:2.7 TO 3.6V 64MBIT PM PARALLEL ADVANCED MPF - Trays 制造商:Microchip Technology Inc 功能描述:IC FLASH 64MBIT 70NS 48TFBGA 制造商:Microchip Technology Inc 功能描述:2.7 - 3.6V 64Mbit pm Parallel Advance MPF |
| SST38VF6404B-70-5I-EKE | 功能描述:闪存 2.7- 3.6V 64Mbit pm Parallel Advance MPF 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 |
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