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參數(shù)資料
| 型號： | SST55LD019A-45-C-TQP |
| 廠商： | SILICON STORAGE TECHNOLOGY INC |
| 元件分類： | 存儲控制器/管理單元 |
| 英文描述： | FLASH MEMORY DRIVE CONTROLLER, PQFP64 |
| 封裝： | MS-026ADC, TQFP-64 |
| 文件頁數(shù)： | 7/76頁 |
| 文件大?。?/td> | 711K |
| 代理商： | SST55LD019A-45-C-TQP |
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Advance Information
ATA Flash Disk Controller
SST55LD019A / SST55LD019B / SST55LD019C
2004 Silicon Storage Technology, Inc.
S71241-02-000
4/04
15
7.0 SECURITY FEATURES
The SST55LD019A/B/C ATA Flash Disk Controller offers added data protection for applications where data security
is of the utmost importance. The secure features are:
1. Protection zones - Customer can enable up to 4 independent protection zones, with two options: Read-only or
Hidden (Read and Write protected) within each protected zone. If protection zones are not enabled the data is
unprotected (default configuration).
2. Password protection - Accessing information within the protected zones can be only achieved through a
customer-unique password.
3. Purge command - The system can issue a Purge command to erase all information stored in the flash media.
8.0 CONFIGURABLE WRITE PROTECT/POWER-DOWN MODES
The WP_PD# pin can be used for either Write Protect mode or Power-down mode, but only one mode is active at
any time. Either mode can be selected through the host command, Set-WP_PD#-Mode, explained in Section
Once the mode is set with this command, the device will stay in the configured mode until the next time this com-
mand is issued. Power-off or reset will not change the configured mode.
8.1 Write Protect Mode
When the device is configured in the Write Protect mode, the WP_PD# pin offers extended data protection. This fea-
ture can be either selected through a jumper or host logic to protect the stored data from inadvertent system writes or
erases, and viruses. The Write Protect feature protects the full address space of the data stored on the flash media.
In the Write Protect mode, the WP_PD# pin should be asserted prior to issuing the destructive commands: Erase-
Sector, Format-Track, Write-DMA, Write-Long-Sector, Write-Multiple, Write-Multiple-without-Erase, Write-Sector(s),
Write-Sector-without-Erase, or Write-Verify. This will force the ATA Flash Disk Controller to reject any destructive com-
mands from the ATA interface. All destructive commands will return 51H in the Status register and 04H in the Error
register signifying an invalid command. All non-destructive commands will be executed normally.
8.2 Power-down Mode
When the device is configured in the Power-down mode, if the WP_PD# pin is asserted during a command, the ATA
disk controller completes the current command and returns to the standby mode immediately to save power. After-
wards, the device will not accept any other commands. Only a Power-on Reset (POR) or hardware reset will bring the
device to normal operation with the WP_PD# pin de-asserted.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SST55LD019A-45-C-TQWE | 功能描述:總線收發(fā)器 ATA Media 45MHz 3.3V Commercial RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SST55LD019A-45-I-BWE | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:ATA Flash Disk Controller |
| SST55LD019A-45-I-MVWE | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:ATA Flash Disk Controller |
| SST55LD019A-45-I-TQWE | 制造商:Silicon Storage Technology (SST) 功能描述:IC CONTROLLER ATA FLASH DISK SMD 制造商:Silicon Storage Technology (SST) 功能描述:IC, CONTROLLER, ATA FLASH DISK, SMD |
| SST55LD019B | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:ATA Flash Disk Controller |
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