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| 型號(hào)： | S71GL064A08BAW0F3 |
| 廠商： | SPANSION LLC |
| 元件分類： | 存儲(chǔ)器 |
| 英文描述： | Stacked Multi-Chip Product (MCP) Flash Memory and RAM |
| 中文描述： | SPECIALTY MEMORY CIRCUIT, PBGA56 |
| 封裝： | 7 X 9 MM, 1.20 MM HEIGHT, LEAD FREE, FBGA-56 |
| 文件頁(yè)數(shù)： | 51/134頁(yè) |
| 文件大?。?/td> | 2383K |
| 代理商： | S71GL064A08BAW0F3 |
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February 8, 2005 S71GL064A_00_A2
S71GL064A based MCPs
21
Advance
Informatio n
Autoselect Functions
If the system writes the autoselect command sequence, the device enters the autoselect
mode. The system can then read autoselect codes from the internal register (which is sepa-
rate from the memory array) on DQ7–DQ0. Standard read cycle timings apply in this mode.
Refer to the “Autoselect Mode” section on page 29 and “Autoselect Command Sequence” sec-
tion on page 41 sections for more information.
Standby Mode
When the system is not reading or writing to the device, it can place the device in the standby
mode. In this mode, current consumption is greatly reduced, and the outputs are placed in
the high impedance state, independent of the OE# input.
The device enters the CMOS standby mode when the CE# and RESET# pins are both held at
VIO ± 0.3 V. (Note that this is a more restricted voltage range than VIH.) If CE# and RESET#
are held at VIH, but not within VIO ± 0.3 V, the device will be in the standby mode, but the
standby current will be greater. The device requires standard access time (tCE) for read access
when the device is in either of these standby modes, before it is ready to read data.
If the device is deselected during erasure or programming, the device draws active current
until the operation is completed.
Refer to the “DC Characteristics” section on page 60 for the standby current specification.
Automatic Sleep Mode
The automatic sleep mode minimizes Flash device energy consumption. The device automat-
ically enables this mode when addresses remain stable for tACC + 30 ns. The automatic sleep
mode is independent of the CE#, WE#, and OE# control signals. Standard address access
timings provide new data when addresses are changed. While in sleep mode, output data is
latched and always available to the system. Refer to the “DC Characteristics” section on page
60 for the automatic sleep mode current specification.
RESET#: Hardware Reset Pin
The RESET# pin provides a hardware method of resetting the device to reading array data.
When the RESET# pin is driven low for at least a period of tRP, the device immediately termi-
nates any operation in progress, tristates all output pins, and ignores all read/write
commands for the duration of the RESET# pulse. The device also resets the internal state
machine to reading array data. The operation that was interrupted should be reinitiated once
the device is ready to accept another command sequence, to ensure data integrity.
Current is reduced for the duration of the RESET# pulse. When RESET# is held at VSS±0.3 V,
the device draws CMOS standby current (ICC5). If RESET# is held at VIL but not within
VSS±0.3 V, the standby current will be greater.
The RESET# pin may be tied to the system reset circuitry. A system reset would thus also
reset the Flash memory, enabling the system to read the boot-up firmware from the Flash
memory.
Refer to the AC Characteristics tables for RESET# parameters and to Figure 15 for the timing
diagram.
Output Disable Mode
When the OE# input is at VIH, output from the device is disabled. The output pins are placed
in the high impedance state.
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相關(guān)代理商/技術(shù)參數(shù) |
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| S71GL064A08BFI0B0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and RAM |
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| S71GL064A08BFI0B3 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and RAM |
| S71GL064A08BFI0F0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and RAM |
| S71GL064A08BFI0F2 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and RAM |
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