TE28F800C3BA90 데이터 시트보기 (PDF) - Intel

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TE28F800C3BA90

Intel Advanced+ Boot Block Flash Memory (C3)

Intel 

Intel£ Advanced+ Boot Block Flash Memory (C3)

5.6.1

Program Protection

In addition to the flexible block locking, the VPP programming voltage can be held low for absolute

hardware write protection of all blocks in the flash device. When VPP is below or equal to VPPLK,

any Program or Erase operation will result in an error, prompting the corresponding status-register

bit (SR[3]) to be set.

Figure 7. Example Power Supply Configurations

System Supply

12 V Supply

VCC

VPP

10 ≤ KΩ

12 V Fast Programming

Absolute Write Protection With V PP ≤ VPPLK

System Supply

(Note 1)

VCC

VPP

12 V Supply

Low Voltage and 12 V Fast Programming

System Supply

VCC

Prot#

VPP

(Logic Signal)

Low-Voltage Programming

Absolute Write Protection via Logic Signal

System Supply

VCC

VPP

Low-Voltage Programming

NOTE:

0645_06

1. A resistor can be used if the VCC supply can sink adequate current based on resistor value. See AP-657

Designing with the Advanced+ Boot Block Flash Memory Architecture for details.

Datasheet

31

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