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參數(shù)資料
| 型號(hào)： | S71PL191HB0BFI100 |
| 廠商： | SPANSION LLC |
| 元件分類： | 存儲(chǔ)器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA73 |
| 封裝： | 9 X 13 MM, LEAD FREE, FBGA-73 |
| 文件頁(yè)數(shù)： | 23/172頁(yè) |
| 文件大?。?/td> | 4662K |
| 代理商： | S71PL191HB0BFI100 |
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May 7, 2004 S29JL064HA1
S29JL064H
23
Pre l i m i n a r y
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.
Write Pulse “Glitch” Protection
Noise pulses of less than 5 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 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
must write the reset command.The CFI Query mode is not accessible when the
device is executing an Embedded Program or embedded Erase algorithm.
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
command to reading array data.
For further information, please refer to the CFI Specification and CFI Publication
100. Contact your local sales office for copies of these documents.
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