APPENDIX C. POWER S
參數(shù)資料
型號： 101-1218
廠商： Rabbit Semiconductor
文件頁數(shù)： 26/130頁
文件大?。?/td> 0K
描述： KIT APPLCTN RABBITCORE RCM4010
標(biāo)準(zhǔn)包裝： 1
系列： RabbitCore®
主要目的： *
嵌入式： *
已用 IC / 零件： RCM4010
主要屬性： *
次要屬性： *
已供物品： 板，模塊，250GB 網(wǎng)絡(luò)驅(qū)動器，線纜，CD，電源
其它名稱： 316-1156
User’s Manual
115
APPENDIX C. POWER SUPPLY
Appendix C provides information on the current requirements of
the RCM4000, and includes some background on the chip select
circuit used in power management.
C.1 Power Supplies
The RCM4000 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 RCM4000 board through header J2.
An RCM4000 with no loading at the outputs operating at 58.98 MHz typically draws
110 mA.
C.1.1 Battery Backup
The RCM4000 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 RCM4000 powered down.
Figure C-1. External Battery Connections
at Header J2
A lithium battery with a nominal voltage of 3 Vand 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. A minimum battery voltage of 2.5 V is required for
proper operation.
1
8
2
7
VBAT_EXT
GND
External
Battery
J2
+3.3 V_IN
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10-11-2183 功能描述:集管和線殼 18P CRIMP RAMP HSNG RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector
10-11-2184 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:2.54mm (.100") Pitch KK?? Crimp Terminal Housing, High Pressure, 1 Circuits
10-11-2193 功能描述:集管和線殼 KK 100 Housing Crimp Ramp 19 Ckt RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector
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