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參數(shù)資料
| 型號： | AM29LV008BB-90ED |
| 廠商： | SPANSION LLC |
| 元件分類： | PROM |
| 英文描述： | Flash Memory IC; Interface Type:Parallel; Memory Size:8Mbit; Memory Configuration:1M x 8; Package/Case:40-TSOP; Supply Voltage:3V; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes; Supply Voltage Max:3.6V RoHS Compliant: Yes |
| 中文描述： | 1M X 8 FLASH 3V PROM, 90 ns, PDSO40 |
| 封裝： | LEAD FREE, MO-142BCD, TSOP-40 |
| 文件頁數(shù)： | 6/41頁 |
| 文件大?。?/td> | 738K |
| 代理商： | AM29LV008BB-90ED |
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14
Am29LV008B
21524D7 February 24, 2009
D A TA SH EET
Temporary Sector Unprotect
This feature allows temporary unprotection of previ-
ously protected sectors to change data in-system. The
Sector Unprotect mode is activated by setting the
RESET# pin to VID. During this mode, formerly pro-
tected sectors can be programmed or erased by
selecting the sector addresses. Once VID is removed
from the RESET# pin, all the previously protected
sectors are protected again. Figure 2 shows the algo-
rithm, and Figure 20 shows the timing diagrams, for this
feature.
Figure 2.
Temporary Sector Unprotect Operation
Hardware Data Protection
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
against inadver tent writes (refer to Table 5 for
command definitions). In addition, the following hard-
ware data protection measures prevent accidental
erasure or programming, which might otherwise be
caused by spurious system level signals during VCC
power-up and power-down transitions, or from system
noise.
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. Subsequent writes are ignored until VCC
is greater than VLKO. The system must provide the
proper signals to the control pins to prevent uninten-
tional 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 reading array data on power-up.
START
Perform Erase or
Program Operations
RESET# = VIH
Temporary Sector
Unprotect Completed
(Note 2)
RESET# = VID
(Note 1)
Note:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once
again.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM29LV008BB-90EF | Flash Memory IC; Leaded Process Compatible:Yes; Memory Size:8Mbit; Package/Case:48-TSOP; Peak Reflow Compatible (260 C):Yes; Supply Voltage Max:3V; Access Time, Tacc:90ns; Series:AM29 RoHS Compliant: Yes |
| AM29LV008BT-120ED | Flash Memory IC; Leaded Process Compatible:Yes; Memory Size:8Mbit; Package/Case:48-TSOP; Peak Reflow Compatible (260 C):Yes; Supply Voltage Max:3V; Access Time, Tacc:120ns; Series:AM29 RoHS Compliant: Yes |
| AM29LV008BT-70RED | Flash Memory IC; Leaded Process Compatible:Yes; Memory Size:8Mbit; Package/Case:48-TSOP; Peak Reflow Compatible (260 C):Yes; Supply Voltage Max:3V; Access Time, Tacc:70ns; Series:AM29 RoHS Compliant: Yes |
| AM29LV008BT-70REF | Flash Memory IC; Leaded Process Compatible:Yes; Memory Size:8Mbit; Package/Case:48-TSOP; Peak Reflow Compatible (260 C):Yes; Supply Voltage Max:3V; Access Time, Tacc:70ns; Series:AM29 RoHS Compliant: Yes |
| AM29LV008BT-90ED | Flash Memory IC; Leaded Process Compatible:Yes; Memory Size:8Mbit; Package/Case:48-TSOP; Peak Reflow Compatible (260 C):Yes; Supply Voltage Max:3V; Access Time, Tacc:90ns; Series:AM29 RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| AM29LV008BT-120EC | 制造商:ADV-MICRO-DEV 功能描述: |
| AM29LV008BT-80EC | 制造商:Spansion 功能描述:IC 8 MEG X 8, 3 V FLASH TOP B - Bulk |
| AM29LV008DT-90EC | 制造商:Spansion 功能描述:8M (1MX8) 3V, BOOT BLOCK, TOP, TSOP40, COM - Trays |
| AM29LV010B-45JC | 制造商:Spansion 功能描述:1M (128KX8) 3V, UNIFORM SECTOR, PLCC32, COM - Rail/Tube |
| AM29LV010B-55JCT | 制造商:Spansion 功能描述:1M (128KX8) 3V, UNIFORM SECTOR, PLCC32, COM, T&R - Tape and Reel |
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