參數(shù)資料
型號: S29GL128M90TFIR20
廠商: SPANSION LLC
元件分類: DRAM
英文描述: 3.0 Volt-only Page Mode Flash Memory featuring 0.23 um MirrorBit process technology
中文描述: 8M X 16 FLASH 3V PROM, 90 ns, PDSO56
封裝: LEAD FREE, MO-142EC, TSOP-56
文件頁數(shù): 98/160頁
文件大?。?/td> 2142K
代理商: S29GL128M90TFIR20
98
S29GLxxxM MirrorBit
TM
Flash Family
S29GLxxxM_00A5 April 30, 2004
P r e l i m i n a r y
Write Pulse “Glitch” Protection
Noise pulses of less than 3 ns (typical) on OE#, CE# or WE# do not initiate a write
cycle.
Logical Inhibit
Write cycles are inhibited by holding any one of OE# = V
IL
, CE# = V
IH
or WE# =
V
IH
. To initiate a write cycle, CE# and WE# must be a logical zero while OE# is a
logical one.
Power-Up Write Inhibit
If WE# = CE# = V
IL
and OE# = V
IH
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.
Common Flash Memory Interface (CFI)
The Common Flash Interface (CFI) specification outlines device and host system
software interrogation handshake, which allows specific vendor-specified soft-
ware algorithms to be used for entire families of devices. Software support can
then be device-independent, JEDEC ID-independent, and forward- and back-
ward-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 Tables 27-30. 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 au-
toselect mode. The device enters the CFI query mode, and the system can read
CFI data at the addresses given in Tables 27-30. 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. Alter-
natively, contact your sales representative for copies of these documents.
相關(guān)PDF資料
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