APPENDIX C. POWER S
參數資料
型號： 20-101-0494
廠商： Rabbit Semiconductor
文件頁數： 75/90頁
文件大?。?/td> 0K
描述： MODULE RABBITCORE RCM2250
標準包裝： 1
系列： RabbitCore®
模塊/板類型： MPU 核心模塊
適用于相關產品： RCM2250
產品目錄頁面： 620 (CN2011-ZH PDF)
其它名稱： 316-1092
User’s Manual
71
APPENDIX C. POWER SUPPLY
Appendix C provides information on the current requirements of
the RCM2200, and includes some background on the chip select
circuit used in power management.
C.1 Power Supplies
The RCM2200 requires a regulated 5 V ± 0.25 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 RabbitCore board through headers J4 and J5.
An RCM2200 with no loading at the outputs operating at 22.1 MHz typically draws 134 mA.
The RCM2200 will consume an additional 10 mA when the programming cable is used to
connect the programming header, J1, to a PC.
C.1.1 Battery-Backup Circuits
The RCM2200 does not have a battery, but there is provision for a customer-supplied bat-
tery to back up SRAM and keep the internal Rabbit 2000 real-time clock running.
Header J5, 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 2000 real-time clock to retain data with the RCM2200 powered down.
Figure C-1. External Battery Connections
at Header J5
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.
D0
VCC
24
25
23
26
VBAT
GND
External
Battery
相關PDF資料
PDF描述
AT25020N-10SI-2.7 IC EEPROM 2KBIT 2.1MHZ 8SOIC
345-030-521-801 CARDEDGE 30POS DUAL .100 GREEN
12FMN-BMTTN-A-TF CONN FMN HSNG 12POS STAG NOR SMD
AT25020-10PI-2.7 IC EEPROM 2KBIT 2.1MHZ 8DIP
345-030-521-204 CARDEDGE 30POS DUAL .100 GREEN
相關代理商/技術參數
參數描述
20-101-0495 功能描述:處理器配件 BASEPLATE RoHS:否 制造商:Olimex Ltd. 產品:Cable 用于:
20-101-0497 功能描述:單板計算機 OP6810 RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
201-01050 功能描述:鋁質電解電容器 - 帶引線 1 uF Electrolytic Capacitor RoHS:否 制造商:Kemet 引線類型: 電容:220 uF 容差:20 % 電壓額定值:25 V 工作溫度范圍: 端接類型:Radial 外殼直徑:8 mm 外殼長度:11 mm 引線間隔:5 mm 產品:General Purpose Electrolytic Capacitors 封裝:Bulk
201-0105-01 功能描述:印刷電路板和試驗板 JTAG 20 Pin Connector RoHS:否 制造商:3M Electronic Solutions Division 產品:Jumper & Insulated Wires 描述/功能:Jumper wire, 22 AWG 0.1 inch 長度:0.1 in 寬度:
20-101-0502 功能描述:處理器配件 Keypad/Display Unit 5V Panle Mount RoHS:否 制造商:Olimex Ltd. 產品:Cable 用于:
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