參數(shù)資料
型號： 20-101-0542
廠商： Rabbit Semiconductor
文件頁數(shù)： 25/138頁
文件大?。?/td> 0K
描述： CABLE 1.27MM FOR RCM3200
標(biāo)準(zhǔn)包裝： 1
附件類型： 編程纜線
適用于相關(guān)產(chǎn)品： 基于 Rabbit 3000 的產(chǎn)品，不包括 RCM30/3100、LP3500
產(chǎn)品目錄頁面： 620 (CN2011-ZH PDF)
其它名稱： 20-101-0542-ND
316-1180
114
RabbitCore RCM3200
The drain on the battery by the RCM3200 is typically 12 A when no other power is sup-
plied. If a 165 mAh battery is used, the battery can last almost 2 years:
The actual life in your application will depend on the current drawn by components, not
on the RCM3200 and the storage capacity of the battery. The RCM3200 does not drain the
battery while it is powered up normally.
Cycle the main power off/on on the RCM3200 after you install a backup battery for the
first time, and whenever you replace the battery. This step will minimize the current drawn
by the real-time clock oscillator circuit from the backup battery should the RCM3200
experience a loss of main power.
NOTE: Remember to cycle the main power off/on any time the RCM3200 is removed
from the Protoyping Board or motherboard since that is where the backup battery
would be located.
Rabbit’s Technical Note TN235, External 32.768 kHz Oscillator Circuits, provides addi-
tional information about the current draw by the the real-time clock oscillator circuit.
D.1.2 Battery-Backup Circuit
Figure D-2 shows the battery-backup circuit.
Figure D-2. RCM3200 Backup Battery Circuit
The battery-backup circuit serves three purposes:
It reduces the battery voltage to the SRAM and to the real-time clock, thereby limiting
the current consumed by the real-time clock and lengthening the battery life.
It ensures that current can flow only out of the battery to prevent charging the battery.
A voltage, VOSC, is supplied to U5, which keeps the 32.768 kHz oscillator working
when the voltage begins to drop.
165 mAh
12 A
------------------------
1.6 years.
=
VRAM
150 kW
R34
VBAT-EXT
External Battery
R33
47 kW
VOSC
D1
R32
100 W
C38
100 nF
C41
2.2 nF
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
20-101-0545 制造商:Digi International 功能描述:LP3500 PROTO BOARD - Boxed Product (Development Kits) 制造商:Digi International Inc 功能描述:PROTOTYPING BOARD FOR LP3500
20-101-0546 功能描述:單板計算機(jī) BL2130 Btm Mnt 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
20-101-0551 功能描述:模塊化系統(tǒng) - SOM BL2110 W/IDCHEADERS RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲容量:8 MB, 16 MB 存儲類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
20-101-0554 功能描述:模塊化系統(tǒng) - SOM BL2000 Btm Mnt RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲容量:8 MB, 16 MB 存儲類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
20-101-0555 功能描述:單板計算機(jī) BL2000 Friction Lock 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
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