參數(shù)資料
型號: 101-0530
廠商: Rabbit Semiconductor
文件頁數(shù): 39/142頁
文件大小: 0K
描述: KIT TOOL FOR LP3500 INTL
標(biāo)準(zhǔn)包裝: 1
系列: RabbitCore 3000
類型: 單板計算機(SBC)
適用于相關(guān)產(chǎn)品: 基于 Rabbit 3000 的產(chǎn)品,不包括 RCM30/3100、LP3500
所含物品: 演示板,串行線纜,軟件和文檔
User’s Manual
127
E.2.3 Reset Generator
The LP3500 module uses a reset generator on the module, U11, to reset the Rabbit 3000
microprocessor when the voltage drops below the voltage necessary for reliable operation.
The reset occurs between 2.55 V and 2.75 V, typically 2.63 V.
E.3 Chip Select Circuit
The current drain on the battery in a battery-backed circuit must be kept at a minimum.
When the LP3500 is not powered, the battery keeps the SRAM memory contents and the
real-time clock (RTC) going. The SRAM has a powerdown mode that greatly reduces
power consumption. This powerdown mode is activated by raising the chip select (CS)
signal line. Normally the SRAM requires Vcc to operate. However, only 2 V is required
for data retention in powerdown mode. Thus, when power is removed from the circuit, the
battery voltage needs to be provided to both the SRAM power pin and to the CS signal
line. The CS control circuit accomplishes this task for the SRAM’s chip select signal line.
In a powered-up condition, the CS control circuit must allow the processor’s chip select
signal /CS1 to control the SRAM’s CS signal /CSRAM. So, with power applied, /CSRAM
must be the same signal as /CS1, and with power removed, /CSRAM must be held high
(but only needs to be battery voltage high).The isolated /CSRAM line has a 220 k
pullup
resistor to VRAM (R46). This pullup resistor keeps /CSRAM at the VRAM voltage level
(which under no power condition is the backup battery’s regulated voltage at a little more
than 2 V).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
10-105310-02P 制造商:Amphenol Aerospace 功能描述:RECEPT
10-105310-02S 制造商:Amphenol Aerospace 功能描述:RECEPT
10-105318-11P 制造商:Amphenol Aerospace 功能描述:RECEPT
10-105318-11S 制造商:Amphenol Aerospace 功能描述:RECEPT