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參數(shù)資料
型號： W39V040FA
廠商： WINBOND ELECTRONICS CORP
英文描述： 512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
中文描述： 為512k × 8的CMOS固件樞紐INERFACE閃存
文件頁數(shù)： 6/36頁
文件大小： 518K
代理商： W39V040FA
W39V040FA
- 6 -
Block Locking Registers
This part provides 8 even 64Kbytes blocks, and each block can be locked by register control. These
control registers can be set or clear through memory address. Below is the detail description.
Block Locking Registers type and access memory map Table
REGISTERS
REGISTERS
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
CONTROL
BLOCK
7
6
5
4
3
2
1
0
DEVICE PHYSICAL
ADDRESS
7FFFFh – 70000h
6FFFFh – 60000h
5FFFFh – 50000h
4FFFFh – 40000h
3FFFFh – 30000h
2FFFFh – 20000h
1FFFFh – 10000h
0FFFFh – 00000h
4GBYTES SYSTEM
MEMORY ADDRESS
FFBF0002h
FFBE0002h
FFBD0002h
FFBC0002h
FFBB0002h
FFBA0002h
FFB90002h
FFB80002h
BLR7
BLR6
BLR5
BLR4
BLR3
BLR2
BLR1
BLR0
Block Locking Register Bits Function Table
BIT
7 – 3
FUNCTION
Reserved
Read Lock
1: Prohibit to read in the block where set
0: Normal read operation in the block where clear. This is default state.
Lock Down
1: Prohibit further to set or clear the Read Lock or Write Lock bits. This Lock Down
Bit can only be set not clear. Only the device is reset or re-powered, the Lock
Down Bit is cleared.
0: Normal operation for Read Lock or Write Lock. This is the default state.
Write Lock
1: Prohibited to write in the block where set. This is default state.
0: Normal programming/erase operation in the block where clear.
2
1
0
Register Based Block Locking Value Definitions Table
BIT [7:3]
00000
00000
00000
00000
00000
00000
00000
00000
BIT 2
0
0
0
0
1
1
1
1
BIT 1
0
0
1
1
0
0
1
1
BIT 0
0
1
0
1
0
1
0
1
RESULT
Full Access.
Write Lock. Default State.
Locked Open (Full Access, Lock Down).
Write Locked, Locked Down.
Read Locked.
Read & Write Locked.
Read Locked, Locked Down.
Read & Write Locked, Locked Down.
相關(guān)PDF資料
PDF描述
W39V040FAP 512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
W39V040FAQ 512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
W39V040FAT 512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
W39V040FB 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBP 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W39V040FAP 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
W39V040FAPZ 功能描述:IC FLASH 4MBIT 11NS 32PLCC RoHS:是 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:1,000 系列:- 格式 - 存儲器:RAM 存儲器類型:移動 SDRAM 存儲容量:256M（8Mx32） 速度:133MHz 接口:并聯(lián) 電源電壓:1.7 V ~ 1.95 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA（8x13） 包裝:帶卷 (TR) 其它名稱:557-1327-2
W39V040FAQ 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
W39V040FAT 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
W39V040FB 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
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