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W39L020T-90B

W39L020T-90B首页预览图
型号: W39L020T-90B
PDF文件:
  • W39L020T-90B PDF文件
  • W39L020T-90B PDF在线浏览
功能描述: 128K X 8 CMOS FLASH MEMORY
PDF文件大小: 242.15 Kbytes
PDF页数: 共19页
制造商: WINBOND[Winbond]
制造商LOGO: WINBOND[Winbond] LOGO
制造商网址: http://www.winbond.com
捡单宝W39L020T-90B
PDF页面索引
120%
W29EE012
- 8 -
Command Codes for Product Identification
BYTE SEQUENCE SOFTWARE PRODUCT
IDENTIFICATION ENTRY
SOFTWARE PRODUCT
IDENTIFICATION EXIT
ADDRESS DATA ADDRESS DATA
0 Write 5555H AAH 5555H AAH
1 Write 2AAAH 55H 2AAAH 55H
2 Write 5555H 80H 5555H F0H
3 Write 5555H AAH - -
4 Write 2AAAH 55H - -
5 Write 5555H 60H - -
Pause 10 µS Pause 10 µS
Software Product Identification Acquisition Flow
Product Identification Entry(1)
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data 80
to
address 5555
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data 60
to
address 5555
Pause 10 S
Product Identification Mode(2,3)
Read address = 0
data = DA
Read address = 1
data = C1
Product Identification
Exit(1)
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data FO
to
address 5555
Pause 10
m
µ
S
Normal Mode
(4)
µ
Notes for software product identification:
(1) Data format: DQ7 DQ0 (Hex); address format: A14 A0 (Hex).
(2) A1 A16 = VIL; manufacture code is read for A0 = VIL; device code is read for A0 = VIH.
(3) The device does not remain in identification mode if power down.
(4) The device returns to standard operation mode.
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