101-0954 Rabbit Semiconductor, 101-0954 Datasheet - Page 137

• Manufacturer Part Number: 101-0954
• Description: KIT DEV RABBIT RCM3360/3370 INTL
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 3000r

Specifications of 101-0954

• For Use With/related Products: RCM3360
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined

D.1 Power Supplies
Power is supplied from the motherboard to which the RCM3360/RCM3370 is connected
via header J4. The RCM3360/RCM3370 require a regulated 3.15 V to 3.45 V DC power
source. An RCM3360/RCM3370 with no loading at the outputs operating at 44.2 MHz
typically draws 350 mA.
D.1.1 Battery-Backup Circuits
The RCM3360/RCM3370 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 RCM3360/RCM3370 powered
down.
User’s Manual
Appendix D provides information on the current requirements of
the RCM3360/RCM3370 modules, and includes some background
on the reset generator.
Figure D-1. External Battery Connections
A
PPENDIX
at Header J4
D. P
OWER
S
UPPLY
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