參數(shù)資料
型號(hào): 20-101-1154
廠商: Rabbit Semiconductor
文件頁(yè)數(shù): 7/112頁(yè)
文件大小: 0K
描述: MODULE RCM4120 RABBITCORE
標(biāo)準(zhǔn)包裝: 1
系列: RabbitCore®
模塊/板類型: MPU 核心模塊
適用于相關(guān)產(chǎn)品: RCM4120
其它名稱: 316-1122
100
RabbitCore RCM4100
The drain on the battery by the RCM4110 is typically 7.5 A when no other power is sup-
plied. If a 165 mAh battery is used, the battery can last about 2.5 years:
The actual battery life in your application will depend on the current drawn by components
not on the RCM4100 series of modules and on the storage capacity of the battery. The
RCM4100 series of modules does not drain the battery while it is powered up normally.
Cycle the main power off/on after you install a backup battery for the first time, and when-
ever you replace the battery. This step will minimize the current drawn by the real-time
clock oscillator circuit from the backup battery should the RCM4100 experience a loss of
main power.
NOTE: Remember to cycle the main power off/on any time the RCM4100 is removed
from the Prototyping 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 real-time clock oscillator circuit.
C.1.2 Battery-Backup Circuit
Figure C-2 shows the battery-backup circuit.
Figure C-2. RCM4100 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 U6, which keeps the 32.768 kHz oscillator working
when the voltage begins to drop.
C.1.3 Reset Generator
The RCM4100 series of modules uses a reset generator to reset the Rabbit 4000 micropro-
cessor when the voltage drops below the voltage necessary for reliable operation. The
165 mAh
7.5 A
------------------------
2.5 years.
=
VRAM
47 kW
R16
VBAT-EXT
External Battery
R19
47 kW
VOSC
D1
47 kW
R17
C23
10 nF
相關(guān)PDF資料
PDF描述
20-101-1197 MODULE RABBITCORE RCM3910 ROHS
20-101-1215 MCU RCM4050 RABBITCORE
20-101-1246 CORE MODULE RCM5400W
20-101-1260 BL5S220 SBC (RCM5400-BASED)
20-101-1319 MINCORE MODULE RCM6710
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
20-101-1170 功能描述:Zigbee/802.15.4模塊 RCM4510W CORE MODULE RoHS:否 制造商:Digi International 頻帶:902 MHz to 928 MHz 視線范圍: 數(shù)據(jù)速率: 靈敏度: 工作電源電壓:2.4 V to 3.6 V 傳輸供電電流:215 mA 接收供電電流:26 mA 輸出功率:250 mW 天線連接器類型:Wire 最大工作溫度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm
20-101-1179 功能描述:模塊化系統(tǒng) - SOM RCM3209 RABBITCORE 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(chǔ)容量:8 MB, 16 MB 存儲(chǔ)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
20-101-1183 功能描述:程序設(shè)計(jì)器配件 USB PROGRAM CABLE RoHS:否 制造商:Lattice 產(chǎn)品:ispDOWNLOAD Cables 用于:In-system Programming
20-101-1184 功能描述:模塊化系統(tǒng) - SOM IC CPU RABBIT 2000 (2 pack) 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(chǔ)容量:8 MB, 16 MB 存儲(chǔ)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
20-101-1185 功能描述:微處理器 - MPU IC CPU RABBIT 3000A (2 pack) RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324