參數(shù)資料
型號(hào)： M29W640GB70ZA6F
廠商： STMICROELECTRONICS
元件分類： PROM
英文描述： 4M X 16 FLASH 3V PROM, 70 ns, PBGA48
封裝： 6 X 8 MM, 0.80 MM PITCH, ROHS COMPLIANT, TFBGA-48
文件頁數(shù)： 72/90頁
文件大?。?/td> 849K
代理商： M29W640GB70ZA6F
Common Flash Interface (CFI)
M29W640GH, M29W640GL, M29W640GT, M29W640GB
Appendix B
Common Flash Interface (CFI)
The Common Flash Interface is a JEDEC approved, standardized data structure that can be
read from the Flash memory device. It allows a system software to query the device to
determine various electrical and timing parameters, density information and functions
supported by the memory. The system can interface easily with the device, enabling the
software to upgrade itself when necessary.
When the CFI Query Command is issued the device enters CFI Query mode and the data
structure is read from the memory. Tables 30, 31, 32, 33, 34, and 35, show the addresses
used to retrieve the data. The CFI data structure also contains a security area where a 64 bit
unique security number is written (see Table 35: Security code area). This area can be
accessed only in Read mode by the final user. It is impossible to change the security
number after it has been written by ST.
Table 30.
Query structure overview(1)
1.
Query data are always presented on the lowest order data outputs.
Address
Sub-section Name
Description
x16
x8
10h
20h
CFI Query Identification String
Command set ID and algorithm data offset
1Bh
36h
System Interface Information
Device timing & voltage information
27h
4Eh
Device Geometry Definition
Flash device layout
40h
80h
Primary Algorithm-specific Extended
Query table
Additional information specific to the
Primary Algorithm (optional)
61h
C2h
Security Code Area
64 bit unique device number
Table 31.
CFI query identification string(1)
1.
Query data are always presented on the lowest order data outputs (DQ7-DQ0) only. DQ8-DQ15 are ‘0’.
Address
Data
Description
Value
x16
x8
10h
20h
0051h
“Q”
11h
22h
0052h Query Unique ASCII String "QRY"
"R"
12h
24h
0059h
"Y"
13h
26h
0002h Primary Algorithm Command Set and Control Interface ID code
16 bit ID code defining a specific algorithm
AMD
Compatible
14h
28h
0000h
15h
2Ah
P = 40h
16h
2Ch
0000h
17h
2Eh
0000h Alternate Vendor Command Set and Control Interface ID Code
second vendor - specified algorithm supported
NA
18h
30h
0000h
19h
32h
0000h
Address for Alternate Algorithm extended Query table
NA
1Ah
34h
0000h
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M29W640GB70ZF3F 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Tape and Reel
M29W640GB70ZF3F TR 制造商:Micron Technology Inc 功能描述:IC FLASH 64MBIT 70NS 64TBGA
M29W640GB70ZF6E 功能描述:IC FLASH 64MBIT 70NS 64TBGA RoHS:是 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:Axcell™ 標(biāo)準(zhǔn)包裝:2,000 系列:- 格式 - 存儲(chǔ)器:RAM 存儲(chǔ)器類型:SRAM - 異步 存儲(chǔ)容量:256K (32K x 8) 速度:15ns 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:28-TSSOP（0.465"，11.8mm 寬） 供應(yīng)商設(shè)備封裝:28-TSOP 包裝:帶卷 (TR) 其它名稱:71V256SA15PZGI8
M29W640GB70ZS6E 制造商:Micron Technology Inc 功能描述:PARALLEL NOR - Trays 制造商:Micron Technology Inc 功能描述:64MBIT PARALLEL NOR FLASH 制造商:Micron Technology Inc 功能描述:IC FLASH 64MBIT 70NS 64FBGA
M29W640GB70ZS6F 制造商:Micron Technology Inc 功能描述:PARALLEL NOR - Tape and Reel
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