参数资料
型号: S29GL032M10TAIR02
厂商: SPANSION LLC
元件分类: PROM
英文描述: MirrorBit Flash Family
中文描述: 4M X 8 FLASH 3V PROM, 100 ns, PDSO40
封装: MO-142-EC, TSOP-40
文件页数: 159/160页
文件大小: 4727K
代理商: S29GL032M10TAIR02
98
S29GLxxxM MirrorBitTM Flash Family
S29GLxxxM_00A5 April 30, 2004
Pr 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# = 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.
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.
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.
相关PDF资料
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