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| SPHE6300A资料 | |
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SPHE6300A PDF Download |
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File Size : 116 KB
Manufacturer:SUNPLUS Description:the specified tBP cycle time. The DATA polling feature or the toggle bit feature may be used to indicate the end of a program cycle. SECTOR PROGRAMMING LOCKOUT: Each sector has a programming lockout feature. This feature prevents pro- gramming of data in the designated sectors once the fea- ture has been enabled. These sectors can contain secure code that is used to bring up the system. Enabling the lock- out feature will allow the boot code to stay in the device while data in the rest of the device is updated. This feature does not have to be activated; any sectors usage as a write protected region is optional to the user. Once the feature is enabled, the data in the protected sec- tors can no longer be erased or programmed when input levels of 5.5V or less are used. Data in the remaining sec- tors can still be changed through the regular programming method. To activate the lockout feature, a series of six pro- gram commands to specific addresses with specific data must be performed. Please refer to the Command Defini- tions table. SECTOR PROGRAMMING LOCKOUT OVERRIDE: The user can override the sector programming lockout by taking the RESET pin to 12V 0.5V. By doing this protected data can be altered through a chip erase, sector erase or byte/word programming. When the RESET pin is brought back to TTL levels the sector programming lockout feature is again active. ERASE SUSPEND/ERASE RESUME: The erase suspend command allows the system to interrupt a sector erase operation and then program or read data from a different sector within the same plane. Since this device has a dual plane architecture, there is no need to use the erase sus- pend feature while erasing a sector when you want to read data from a sector in the other plane. After the erase sus- pend command is given, the device requires a maximum time of 15 µs to suspend the erase operation. After the erase operation has been suspended, the plane which con- tains the suspended sector enters the erase-suspend-read mode. The system can then read data or program data to any other sector within the device. An address is not required during the erase suspend command. During a sector erase suspend, another sector cannot be erased. To resume the sector erase operation, the system must write the erase resume command. The erase resume command is a one bus cycle command, which does require the plane address (determined by A18 and A19). The device also supports an erase suspend during a complete chip erase. While the chip erase is suspended, the user can read from any sector within the memory that is protected. The com- mand sequence for a chip erase suspend and a sector erase suspend are the same. PRODUCT IDENTIFICATION: The product identification mode identifies the device and manufacturer as Atmel. It |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：SPHE6300A 厂 家：SUNPLUS 封 装：QFP 批 号：08+ 数 量：110 说 明：绝对原厂原装现货热卖！！ |
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运 费： 所在地：深圳 新旧程度： |
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| 联系人：陈小姐 |
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| 公司地址： 广东深圳市福田区华强北（振华路）赛格高科德电子市场A1848室 |
