參數(shù)資料
型號： S29CD016J0JQFM002
廠商： SPANSION LLC
元件分類： DRAM
英文描述： 32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O
中文描述： 512K X 32 FLASH 2.7V PROM, 54 ns, PQFP80
封裝： LEAD FREE, PLASTIC, MO-108CB-1, QFP-80
文件頁數(shù)： 68/76頁
文件大?。?/td> 1245K
代理商： S29CD016J0JQFM002
66
S29CD-J & S29CL-J Flash Family
S29CD-J_CL-J_00_B1 September27,2006
D a t a
S h e e t
( P r e l i m i n a r y )
19. Appendix 1
19.1
Common Flash Memory Interface (CFI)
The Common Flash Interface (CFI) specification outlines device and host system software interrogation
handshake, which allows specific vendor-specified software algorithms to be used for entire families of
devices. Software support can then be device-independent, JEDEC ID-independent, and forward- and
backward-compatible for the specified flash device families. Flash vendors can standardize existing
interfaces for long-term compatibility.
This device enters the CFI Query mode when the system writes the CFI Query command, 98h, to address
55h in word mode (or address AAh in byte mode), any time the device is ready to read array data. The system
can read CFI information at the addresses given in
Table 19.1
-
Table 19.3
. In order to terminate reading CFI
data, the system must write the reset command.
The system can also write the CFI query command when the device is in the autoselect mode. The device
enters the CFI query mode, and the system can read CFI data at the addresses given in
Table 19.1
-
Table
19.3
. The system must write the reset command to return the device to the autoselect mode.
For further information, please refer to the CFI Specification and CFI Publication 100. Contact a Spansion
representative for copies of these documents.
Table 19.1
CFI Query Identification String
Addresses
Data
Description
10h
11h
12h
0051h
0052h
0059h
Query Unique ASCII string
QRY
13h
14h
0002h
0000h
Primary OEM Command Set
15h
16h
0040h
0000h
Address for Primary Extended Table
17h
18h
0000h
0000h
Alternate OEM Command Set (00h = none exists)
19h
1Ah
0000h
0000h
Address for Alternate OEM Extended Table (00h = none exists)
Table 19.2
CFI System Interface String
Addresses
Data
Description
1Bh
(see description)
V
CC
Min. (write/erase)
DQ7–DQ4: volts, DQ3–DQ0: 100 millivolt
0023h = S29CD-J devices
0030h = S29CL-J devices
1Ch
(see description)
V
CC
Max. (write/erase)
DQ7–DQ4: volts, DQ3–DQ0: 100 millivolt
0027h = S29CD-J devices
0036h = S29CL-J devices
1Dh
0000h
V
PP
Min. voltage (00h = no V
PP
pin present)
V
PP
Max. voltage (00h = no V
PP
pin present)
Typical timeout per single word/doubleword program 2
N
μs
1Eh
0000h
1Fh
0004h
20h
0000h
Typical timeout for Min. size buffer program 2
N
μs (00h = not supported)
21h
0009h
Typical timeout per individual block erase 2
N
ms
22h
0000h
Typical timeout for full chip erase 2
N
ms (00h = not supported)
23h
0005h
Max. timeout for word/doubleword program 2
N
times typical
24h
0000h
Max. timeout for buffer write 2
N
times typical
25h
0007h
Max. timeout per individual block erase 2
N
times typical
26h
0000h
Max. timeout for full chip erase 2
N
times typical (00h = not supported)
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