参数资料
型号: 20-101-1197
厂商: Rabbit Semiconductor
文件页数: 70/168页
文件大小: 0K
描述: MODULE RABBITCORE RCM3910 ROHS
标准包装: 1
系列: RabbitCore®
模块/板类型: MPU 核心模块
适用于相关产品: RCM3910
RabbitCore RCM3900 User’s Manual
161
APPENDIX D. POWER SUPPLY
Appendix D provides information on the current requirements
of the RCM3900, and includes some background on the chip
select circuit used in power management.
D.1 Power Supplies
Power is supplied from the motherboard to which the RCM3900 is connected via header
J62. The RCM3900 requires a regulated 3.15 V to 3.45 V DC power source. An RCM3900
with no loading at the outputs operating at 44.2 MHz typically draws 350 mA.
D.1.1 Battery Backup
The RCM3900 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 3000 real-time clock running.
Header J62, 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 RCM3900 powered down.
Figure D-1. External Battery Connections
at Header J62
VRAM
+3.3 VIN
30
31
29
32
VBAT_EXT
GND
External
Battery
J62
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20-101-1198 功能描述:程序设计器配件 Programmers, Development Systems Accessories - CARD EXPANSION RN1400 ROHS RoHS:否 制造商:Lattice 产品:ispDOWNLOAD Cables 用于:In-system Programming
20-101-1200 功能描述:子卡和OEM板 UNIVERSAL RELAY EXP BOARD RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
20-101-1201 功能描述:程序设计器配件 USB PROG CBL WITH 2MM CONN RoHS:否 制造商:Lattice 产品:ispDOWNLOAD Cables 用于:In-system Programming
20-101-1202 功能描述:WiFi/802.11模块 RCM4400W CORE MODULE Wi-Fi/802.11 RoHS:否 制造商:Taiyo Yuden 支持协议:802.11 b/g/n 频带: 数据速率:150 Mbps 接口类型:SDIO 传输功率(最大): 天线连接器类型: 工作电源电压:3.4 V to 5.5 V 传输供电电流: 接收供电电流: 最大工作温度:+ 80 C 尺寸:35 mm x 15 mm x 2.9 mm
20-101-1207 功能描述:Zigbee/802.15.4模块 RF/IF and RFID RF Evaluation & Development Kits & Boards - RCM4510W FCC CERTIFIED RoHS:否 制造商:Digi International 频带:902 MHz to 928 MHz 视线范围: 数据速率: 灵敏度: 工作电源电压:2.4 V to 3.6 V 传输供电电流:215 mA 接收供电电流:26 mA 输出功率:250 mW 天线连接器类型:Wire 最大工作温度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm