101-1156 Rabbit Semiconductor, 101-1156 Datasheet - Page 125
![no-image](/images/no-image-200.jpg)
101-1156
Manufacturer Part Number
101-1156
Description
KIT DEVELOPMENT INT'L RCM4200
Manufacturer
Rabbit Semiconductor
Series
RabbitCore 4000r
Type
MPU Moduler
Specifications of 101-1156
Contents
RabbitCore Module, Dev. Board, AC Adapter, Cable and Dynamic C® CD-Rom
Processor To Be Evaluated
Rabbit 4000
Data Bus Width
8 bit
Interface Type
Ethernet
Silicon Manufacturer
Rabbit Semiconductor
Core Architecture
Rabbit 4000
Kit Contents
RCM4200 Module, Prototyping Board, AC Adapter, Cable, Dynamic C CD-ROM, Getting Started Instructions
For Use With/related Products
RCM4200
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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C.1 Power Supplies
The RCM4200 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 RCM4200 board through header J2.
An RCM4200 with no loading at the outputs operating at 58.98 MHz typically draws
240 mA, and may draw up to 275 mA at 3.6 V and 85°C; the corresponding current draw
for the RCM4210 is typically 200 mA, and up to 225 mA at 3.6 V and 85°C.
C.1.1 Battery Backup
The RCM4200 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 RCM4200 powered down.
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
Appendix C provides information on the current requirements of
the RCM4200, and includes some background on the chip select
circuit used in power management.
Figure C-1. External Battery Connections
A
PPENDIX
at Header J2
C. P
OWER
S
UPPLY
119
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