APPENDIX C. POWER S
參數(shù)資料
型號： 101-1155
廠商： Rabbit Semiconductor
文件頁數(shù)： 30/134頁
文件大?。?/td> 0K
描述： KIT DEVELOPMENT USA RCM4200
標準包裝： 1
系列： RabbitCore 4000
類型： MPU 核心模塊
適用于相關(guān)產(chǎn)品： RCM4200
所含物品： RabbitCore 模塊、開發(fā)板、交流適配器、纜線和 Dynamic C? 光盤
其它名稱： 316-1126
User’s Manual
119
APPENDIX C. POWER SUPPLY
Appendix C provides information on the current requirements of
the RCM4200, and includes some background on the chip select
circuit used in power management.
C.1 Power Supplies
The RCM4200 requires a regulated 3.0 V – 3.6 V DC power source. The RabbitCore
design presumes that the voltage regulator is on the user board, and that the power is made
available to the RCM4200 board through header J2.
An RCM4200 with no loading at the outputs operating at 58.98 MHz typically draws
240 mA, and may draw up to 275 mA at 3.6 V and 85°C; the corresponding current draw
for the RCM4210 is typically 200 mA, and up to 225 mA at 3.6 V and 85°C.
C.1.1 Battery Backup
The RCM4200 does not have a battery, but there is provision for a customer-supplied bat-
tery to back up the data SRAM and keep the internal Rabbit 4000 real-time clock running.
Header J2, shown in Figure C-1, allows access to the external battery. This header makes
it possible to connect an external 3 V power supply. This allows the SRAM and the inter-
nal Rabbit 4000 real-time clock to retain data with the RCM4200 powered down.
Figure C-1. External Battery Connections
at Header J2
A lithium battery with a nominal voltage of 3 V and a minimum capacity of 165 mAh is
recommended. A lithium battery is strongly recommended because of its nearly constant
nominal voltage over most of its life.
1
8
2
7
VBAT_EXT
GND
External
Battery
J2
+3.3 V_IN
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
101-1156 功能描述:開發(fā)板和工具包 - 其他處理器 RCM4200 Dev Kit (Intl) RoHS:否 制造商:Freescale Semiconductor 產(chǎn)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:
101-115-6110-EV 功能描述:編碼器 1mA PUSH 220gf 12 PULSE 24 DETENTS RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動器數(shù)量: 通道數(shù)量:2 安裝風格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
101-115-6191-EV 功能描述:編碼器 1mA PUSH 220gf 12 PULSE 24 DETENTS RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動器數(shù)量: 通道數(shù)量:2 安裝風格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
101-1157 功能描述:開發(fā)板和工具包 - 其他處理器 RCM4100 Analog Dev Kit (US) RoHS:否 制造商:Freescale Semiconductor 產(chǎn)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:
101-1158 功能描述:開發(fā)板和工具包 - 其他處理器 RCM4100 Analog Dev Kit (Intl) RoHS:否 制造商:Freescale Semiconductor 產(chǎn)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:
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