参数资料
型号: 101-0523
厂商: Rabbit Semiconductor
文件页数: 111/128页
文件大小: 0K
描述: KIT DEV RABBIT3000/RCM3000
标准包装: 1
系列: RabbitCore 3000
类型: MPU 模块
适用于相关产品: RCM3000
所含物品: RabbitCore 模块、开发板、交流适配器、缆线和 Dynamic C? 光盘
其它名称: 316-1017
A PPENDIX D. P OWER S UPPLY
Appendix D provides information on the current requirements
of the RCM3000, and includes some background on the chip
select circuit used in power management.
D.1 Power Supplies
The RCM3000 requires a regulated 3.3 V ± 0.15 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 RCM3000 board through header J2.
An RCM3000 with no loading at the outputs operating at 29.4 MHz typically draws 145 mA.
The RCM3000 will consume an additional 10 mA when the programming cable is used to
connect the programming header, J3, to a PC.
D.1.1 Battery-Backup Circuits
The RCM3000 does not have a battery, but there is provision for a customer-supplied bat-
tery to back up SRAM and keep the internal Rabbit 3000 real-time clock running.
Header J2, shown in Figure D-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 3000 real-time clock to retain data with the RCM3000 powered down.
J2
External
Battery
VRAM 29
30
VBAT_EXT
+3.3V
31
32
GND
Figure D-1. External Battery Connections
at Header J5
A lithium battery with a nominal voltage of 3 V and a minimum capacity of 165 mA·h is
recommended. A lithium battery is strongly recommended because of its nearly constant
nominal voltage over most of its life.
User ’s Manual
103
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相关代理商/技术参数
参数描述
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101-0525 功能描述:开发板和工具包 - 其他处理器 LP3500 RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
101-0526 功能描述:开发板和工具包 - 其他处理器 LP3510 RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
101-0529 功能描述:开发板和工具包 - 其他处理器 LP3500 Tool Kit RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
101053 制造商:RUKO 功能描述:Bulk