參數資料
型號: 101-0525
廠商: Rabbit Semiconductor
文件頁數: 38/142頁
文件大小: 0K
描述: COMPUTER SINGLE-BOARD LP3500 FOX
標準包裝: 50
系列: SBC
模塊/板類型: 單板計算機模塊
適用于相關產品: LP3500
其它名稱: 316-1058
126
Fox (LP3500)
E.2.1 Replacing the Backup Battery
The battery is user-replaceable, and is fitted in a battery holder. To replace the battery, lift
up on the spring clip and slide out the old battery. Use only a Panasonic CR2330 or equiv-
alent replacement battery, and insert it into the battery holder with the + side facing up.
NOTE: The SRAM contents and the real-time clock settings will be lost if the battery is
replaced with no power applied to the LP3500. Exercise care if you replace the battery
while external power is applied to the LP3500.
NOTE: Should it be more convenient, it is also possible to install the onboard battery on
the other side of the LP3500 board.
CAUTION: There is an explosion danger if the battery is short-circuited, recharged, or
replaced incorrectly. Replace the battery only with the same type or an equivalent type
recommended by the battery manufacturer. Dispose of used batteries according to the
battery manufacturer’s instructions.
E.2.2 Power to VRAM Switch
The VRAM switch on the LP3500 module, shown in Figure E-3, allows the battery
backup to provide power when the external power goes off. The switch provides an isola-
tion between Vcc and the battery when Vcc goes low. This prevents the Vcc line from
draining the battery.
Figure E-3. VRAM Switch
Field-effect transistor Q12 provides a very small voltage drop between Vcc and VRAM
(<100 mV, typically 10 mV) so that the board components powered by Vcc will not have a
significantly different voltage than VRAM.
When the LP3500 is not in reset, the /RESOUT line will be high. This allows VRAM to
nearly equal Vcc.
When the LP3500 is in reset, the /RESOUT line will go low. This provides an isolation
between Vcc and VRAM.
RESOUT
Q12
R46
/CS
220 kW
Vcc
10 nF
C62
VRAM
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相關代理商/技術參數
參數描述
101-0526 功能描述:開發(fā)板和工具包 - 其他處理器 LP3510 RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101-0529 功能描述:開發(fā)板和工具包 - 其他處理器 LP3500 Tool Kit RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101053 制造商:RUKO 功能描述:Bulk
101-0530 功能描述:開發(fā)板和工具包 - 其他處理器 LP3500 TOOLKIT Univr RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101-0531 功能描述:單板計算機 BL2101 0-10V A/D RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm