- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄203632 > W78M64VP120SBM (MICROSEMI CORP-PMG MICROELECTRONICS) SPECIALTY MEMORY CIRCUIT, PBGA156 PDF資料下載
參數(shù)資料
| 型號： | W78M64VP120SBM |
| 廠商： | MICROSEMI CORP-PMG MICROELECTRONICS |
| 元件分類： | 存儲器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA156 |
| 封裝： | 13 X 22 MM, PLASTIC, BGA-156 |
| 文件頁數(shù)： | 7/48頁 |
| 文件大?。?/td> | 1548K |
| 代理商： | W78M64VP120SBM |
第1頁第2頁第3頁第4頁第5頁第6頁當前第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁
15
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
W78M64VP-XSBX
October 2008
Rev. 2
ADVANCED
White Electronic Designs Corp. reserves the right to change products or specications without notice.
Power Conservation Modes
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# inputs are both held at VCC ±
0.3 V. The device requires standard access time (tCE) for
read access, 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. ICC4
in “DC Characteristics” represents the standby current
specication
AUTOMATIC SLEEP MODE
The automatic sleep mode minimizes Flash device energy
consumption. The device automatically 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. ICC6 represents the automatic sleep mode
current specication.
HARDWARE RESET# INPUT
OPERATION
The RESET# input provides a hardware method of resetting
the device to reading array data. When RESET# is driven
low for at least a period of tRP, the device immediately
terminates any operation in progress, tristates all outputs,
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.
When RESET# is held at VSS ± 0.3 V, the device draws ICC
reset current (ICC5). If RESET# is held at VIL but not within
VSS ± 0.3 V, the standby current is greater.
RESET# may be tied to the system reset circuitry and thus,
a system reset would also reset the Flash
memory, enabling the system to read the boot-up rmware
from the Flash memory.
OUTPUT DISABLE (OE#)
When the OE# input is at VIH, output from the device is
disabled. The outputs are placed in the high impedance
state. (With the exception of RY/BY#.)
SECURED SILICON SECTOR FLASH
MEMORY REGION
Secured Silicon Sector Flash Memory Region The Secured
Silicon Sector provides an extra Flash memory region that
enables permanent part identication through an Electronic
Serial Number (ESN). The Secured Silicon Sector is 128
words in length and all Secured Silicon reads outside of the
128-word address range returns invalid data. The Secured
Silicon Sector Indicator Bit, DQ7, (at Autoselect address
03h) is used to indicate whether or not the Secured Silicon
Sector is locked when shipped from the factory.
Please note the following general conditions:
On power-up, or following a hardware reset, the
device reverts to sending commands to the normal
address space.
Reads outside of sector SA0 return memory array
data.
Sector SA0 is remapped from memory array to
Secured Silicon Sector array.
Once the Secured Silicon Sector Entry Command
is issued, the Secured Silicon Sector Exit command
must be issued to exit Secured Silicon Sector Mode.
The Secured Silicon Sector is not accessible when
the device is executing an Embedded Program or
Embedded Erase algorithm.
The ACC function and unlock bypass modes are
not available when the Secured Silicon Sector is
enabled.
FACTORY LOCKED SECURED SILICON
SECTOR
The Factory Locked Secured Silicon Sector is always
protected when shipped from the factory and has the
Secured Silicon Sector Indicator Bit (DQ7) permanently set
to a “1”. This prevents cloning of a factory locked part and
ensures the security of the ESN and customer code once
the product is shipped to the eld.
These devices are available pre-programmed with one of
the following:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78M64VP120SBI | SPECIALTY MEMORY CIRCUIT, PBGA156 |
| W83L761G | DIGITAL TEMP SENSOR-SERIAL |
| W8D-PF29062 | 36 CONTACT(S), FEMALE, STRAIGHT SINGLE PART CARD EDGE CONN, PRESS FIT |
| W8D-PF29063 | 36 CONTACT(S), FEMALE, STRAIGHT SINGLE PART CARD EDGE CONN, PRESS FIT |
| W8D-PF29 | 36 CONTACT(S), FEMALE, STRAIGHT SINGLE PART CARD EDGE CONN, PRESS FIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78M64V-XSBX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Flash MCP |
| W78NCSX-23 | 功能描述:低信號繼電器 - PCB 4PDT 3A 24VDC IND RoHS:否 制造商:NEC 觸點形式:2 Form C (DPDT-BM) 觸點電流額定值: 線圈電壓:5 V 最大開關(guān)電流:1 A 線圈電流:1 A 線圈類型:Non-Latching 功耗:140 mW 端接類型:SMT 絕緣: 介入損耗: |
| W78PCX-1 | 制造商:Magnecraft 功能描述: |
| W78PCX-2 | 制造商:Magnecraft 功能描述: |
| W78PCX-4 | 制造商:Magnecraft 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。