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参数资料
| 型号： | A28F400BR-T |
| 英文描述： | 4-MBIT (256K X 16. 512K X 8) SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY |
| 中文描述： | 4兆位（256 × 16。为512k × 8）SmartVoltage启动块闪存系列 |
| 文件页数： | 20/36页 |
| 文件大小： | 457K |
| 代理商： | A28F400BR-T |
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A28F400BR-T/B
E
20
ADVANCE INFORMATION
SR.7 =
0
1
Start
Write B0H
Read
Status Register
Write D0H
Erase Resumed
Bus
Operation
Command
Comments
Write
Erase
Suspend
Read
Data = B0H
Addr = X
Check SR.7
1 = WSM Ready
0 = WSM Busy
Status Register Data
Toggle CE# or OE# to Update SRD
Addr = X
Standby
CSR.6 =
Write FFH
Read Array Data
Done
Reading
Erase Completed
Write FFH
Read Array Data
YES
NO
0
1
Check SR.6
1 = Erase Suspended
0 = Erase Completed
Standby
Data = FFH
Addr = X
Write
Read array data from block
other than the one being erased.
Read
Data = D0H
Addr = X
Write
Read Array
Erase Resume
0538_06
Figure 6. Erase Suspend/Resume Flowchart
3.4
Boot Block Locking
The boot block family architecture features a
hardware-lockable boot block so that the kernel
code for the system can be kept secure while the
parameter and main blocks are programmed and
erased independently as necessary. Only the boot
block can be locked independently from the other
blocks.
3.4.1
V
= V
FOR COMPLETE
PROTECTION
For complete write protection of all blocks in the
flash device, the V
PP
programming voltage can be
held low. When V
is below V
, any program or
erase operation will result in a error in the Status
Register.
相关PDF资料 |
PDF描述 |
|---|---|
| A28F400BX-B | 4-MBIT (256K x16. 512K x8) BOOT BLOCK FLASH MEMORY FAMILY |
| A28F400BR-TB | Toggle Switch; Circuitry:DPDT; Switch Operation:On-On; Contact Current Max:6A; Actuator Style:Bat; Switch Terminals:Through Hole; Current Rating:3A; Leaded Process Compatible:Yes; Mounting Type:PCB; Features:Standard Actuator RoHS Compliant: Yes |
| A28F400BX-T | 4-MBIT 256K x16, 512K x8 BOOT BLOCK FLASH MEMORY FAMILY |
| A29-1 | 10 TO 1500 MHz CASCADABLE AMPLIFIER |
| A290011SERIES | 128K X 8 Bit CMOS 5.0 Volt-only. Boot Sector Flash Memory |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A28F400BR-T/B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:A28F400BR-T/B |
| A28F400BR-TB | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:4-MBIT (256K X 16, 512K X 8) SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY |
| A28F400BX-B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:4-MBIT (256K x16. 512K x8) BOOT BLOCK FLASH MEMORY FAMILY |
| A28F400BX-T | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:4-MBIT 256K x16, 512K x8 BOOT BLOCK FLASH MEMORY FAMILY |
| A28F400BX-T/B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:A28F400BX-T/B |
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