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參數(shù)資料
| 型號： | S29GL256N10FAI010 |
| 廠商： | SPANSION LLC |
| 元件分類： | PROM |
| 英文描述： | MirrorBit Flash Family |
| 中文描述： | 16M X 16 FLASH 3V PROM, 100 ns, PBGA64 |
| 封裝： | 13 X 11 MM, FBGA-64 |
| 文件頁數(shù)： | 40/95頁 |
| 文件大?。?/td> | 3781K |
| 代理商： | S29GL256N10FAI010 |
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May 30, 2008 S29GL-N_00_B8
S29GL-N
45
Data
She e t
7.21.1
Low VCC Write Inhibit
When VCC is less than VLKO, the device does not accept any write cycles. This protects data during VCC
power-up and power-down. The command register and all internal program/erase circuits are disabled, and
the device resets to the read mode. Subsequent writes are ignored until VCC is greater than VLKO. The
system must provide the proper signals to the control pins to prevent unintentional writes when VCC is greater
than VLKO.
7.21.2
Write Pulse Glitch Protection
Noise pulses of less than 5 ns (typical) on OE#, CE# or WE# do not initiate a write cycle.
7.21.3
Logical Inhibit
Write cycles are inhibited by holding any one of OE# = VIL, CE# = VIH or WE# = VIH. To initiate a write cycle,
CE# and WE# must be a logical zero while OE# is a logical one.
7.21.4
Power-Up Write Inhibit
If WE# = CE# = VIL and OE# = VIH during power up, the device does not accept commands on the rising
edge of WE#. The internal state machine is automatically reset to the read mode on power-up.
8.
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 their 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, any time the device is ready to read array data. The system can read CFI information at the addresses
given in Table 8.1, Table 8.2 on page 46, and Table 8.3 on page 46. 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 8.1, Table 8.2,
Table 8.3, and Table 8.4 on page 47. The system must write the reset command to return the device to
reading array data.
For further information, please refer to the CFI Specification and CFI Publication 100, available via the World
Wide Web at http://www.amd.com/flash/cfi. Alternatively, contact your sales representative for copies of
these documents.
Table 8.1 CFI Query Identification String
Addresses (x16)
Addresses (x8)
Data
Description
10h
11h
12h
20h
22h
24h
0051h
0052h
0059h
Query Unique ASCII string “QRY”
13h
14h
26h
28h
0002h
0000h
Primary OEM Command Set
15h
16h
2Ah
2Ch
0040h
0000h
Address for Primary Extended Table
17h
18h
2Eh
30h
0000h
Alternate OEM Command Set (00h = none exists)
19h
1Ah
32h
34h
0000h
Address for Alternate OEM Extended Table (00h = none exists)
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