参数资料
型号: 20-101-1067
厂商: Rabbit Semiconductor
文件页数: 48/160页
文件大小: 0K
描述: MODULE RABBITCORE RCM3305
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: RCM3305
其它名称: 316-1113
User’s Manual
135
APPENDIX D. POWER SUPPLY
Appendix D provides information on the current requirements
of the RCM3305/RCM3315, and includes some background on
the reset generator.
D.1 Power Supplies
Power is supplied from the motherboard to which the RCM3305/RCM3315 is connected
via header J4. The RCM3305/RCM3315 requires a regulated 3.15 V to 3.45 V DC power
source. An RCM3305/RCM3315 with no loading at the outputs operating at 44.2 MHz
typically draws 350 mA.
D.1.1 Battery Backup
The RCM3305/RCM3315 does not have a battery, but there is provision for a customer-
supplied battery to back up the data SRAM and keep the internal Rabbit 3000 real-time
clock running.
Header J4, 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 RCM3305/RCM3315 powered
down.
Figure D-1. External Battery Connections
at Header J4
VRAM
+3.3 VIN
30
31
29
32
VBAT_EXT
GND
External
Battery
J4
相关PDF资料
PDF描述
046232116015800+ CONN FFC/FPC 16POS 1MM VERT SMD
046232108103800+ CONN FFC/FPC 8POS 1MM R/A SMD
345-030-521-202 CARDEDGE 30POS DUAL .100 GREEN
345-030-521-201 CARDEDGE 30POS DUAL .100 GREEN
345-030-520-804 CARDEDGE 30POS DUAL .100 GREEN
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