101-1285 Rabbit Semiconductor, 101-1285 Datasheet - Page 124

• Manufacturer Part Number: 101-1285
• Description: DEV KIT DELUXE MINICORE RCM5600W
• Manufacturer: Rabbit Semiconductor
• Series: MiniCore™r
• Type: Transceiver, 802.11 b/gr

Specifications of 101-1285

• Frequency: 2.4GHz
• Processor To Be Evaluated: Rabbit 5000
• Processor Series: RCM5600W
• Interface Type: RS-232, USB, PCI
• Maximum Operating Temperature: + 55 C
• Minimum Operating Temperature: - 30 C
• Operating Supply Voltage: 3.15 V to 3.45 V
• Silicon Manufacturer: Rabbit Semiconductor
• Silicon Family Name: RabbitCore
• Kit Contents: Board
• Features: On-board Single-Chip 802.11b/g Transceiver, Built-In Web Server
• Development Tool Type: Hardware /
• Rohs Compliant: Yes
• For Use With/related Products: RCM5600W
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 316-1161

F.1.1 Battery Backup
The RCM5600W does not have a battery, but there is provision for a customer-supplied
battery to keep the Rabbit 5000 real-time clock running.
The edge connector, shown in Figure F-1, allows access to the external battery. This
makes it possible to connect an external 3 V power supply. This allows the internal Rabbit
5000 real-time clock to retain data with the RCM5600W 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.
The drain on the battery by the RCM5600W is typically 5 µA when no other power is
supplied. If a 165 mA·h battery is used, the battery can last about 3.75 years:
118
165 mA·h
----------------------- -
5 µA
=
3.75 years.
Figure F-1. External Battery Connections
MiniCore RCM5600W