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E28F200CVT80 参数 Datasheet PDF下载

E28F200CVT80图片预览
型号: E28F200CVT80
PDF下载: 下载PDF文件 查看货源
内容描述: 2兆位SmartVoltage引导块闪存系列 [2-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY]
分类和应用: 闪存
文件页数/大小: 55 页 / 633 K
品牌: INTEL [ INTEL ]
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2-MBIT SmartVoltage BOOT BLOCK FAMILY  
E
Table 2. 28F200/002 Pin Descriptions  
Name and Function  
Symbol  
WP#  
Type  
INPUT  
WRITE PROTECT: Provides a method for unlocking the boot block in a system  
without a 12 V supply.  
When WP# is at logic low, the boot block is locked, preventing program and  
erase operations to the boot block. If a program or erase operation is attempted  
on the boot block when WP# is low, the corresponding status bit (bit 4 for  
program, bit 5 for erase) will be set in the status register to indicate the operation  
failed.  
When WP# is at logic high, the boot block is unlocked and can be  
programmed or erased.  
NOTE: This feature is overridden and the boot block unlocked when RP# is at  
V
HH. See Section 3.4 for details on write protection.  
BYTE#  
INPUT  
BYTE# ENABLE: Not available on 28F002B. Controls whether the device  
operates in the byte-wide mode (x8) or the word-wide mode (x16). BYTE# pin  
must be controlled at CMOS levels to meet the CMOS current specification in the  
standby mode.  
When BYTE# is at logic low, the byte-wide mode is enabled, where data is  
read and programmed on DQ0–DQ7 and DQ15/A–1 becomes the lowest order  
address that decodes between the upper and lower byte. DQ8–DQ14 are tri-stated  
during the byte-wide mode.  
When BYTE# is at logic high, the word-wide mode is enabled, where data is  
read and programmed on DQ0–DQ15  
.
VCC  
VPP  
DEVICE POWER SUPPLY: 5.0 V ± 10%, 3.3 V ± 0.3 V, 2.7 V–3.6 V (BE/CE  
only)  
PROGRAM/ERASE POWER SUPPLY: For erasing memory array blocks or  
programming data in each block, a voltage either of 5 V ± 10% or 12 V ± 5% must  
be applied to this pin. When VPP < VPPLK all blocks are locked and protected  
against Program and Erase commands.  
GND  
NC  
GROUND: For all internal circuitry.  
NO CONNECT: Pin may be driven or left floating.  
12  
SEE NEW DESIGN RECOMMENDATIONS  
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