20-101-0525 Rabbit Semiconductor, 20-101-0525 Datasheet - Page 130

• Manufacturer Part Number: 20-101-0525
• Description: COMPUTER SINGLE-BOARD LP3500 FOX
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0525

• Module/board Type: Single Board Computer Module
• Product: Modules
• Processor Type: Rabbit 3000
• Sram: 512 KB
• Flash: 512 KB
• Timers: 8 bit, 10 bit
• Number Of I/os: 26
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 3 V to 30 V
• Board Size: 93 mm x 66 mm x 11 mm
• Description/function: Computer Module
• For Use With/related Products: LP3500
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1115

The linear regulator maintains its output voltage to within ±5% as long as the linear regula-
tor is dissipating less than 0.75 W. Thermal shutdown turns the regulator off when it over-
heats. Figure E-1 shows the power operating curves for the specified VIN range of 3–30 V
DC. Note that while a VIN range of 3–30 V is possible, 3–15 V is recommended to allow
reasonable current.
The LP3500 can operate at various different power levels, depending on which sections of
the board are turned off using the
124
RS-232
RS-485
A/D Converter
(LP3500 model only)
Relay
(LP3500 model only)
LCD/Keypad Module
LP3500 Section
NOTE: RxE always remains active to allow the LP3500 to “listen” while it is in the
power-save mode.
Table E-1. LP3500 Sections That Can Be Turned Off
Figure E-2. Linear Regulator Power Operating Curve
200
180
160
140
120
100
80
60
40
20
0
0
8 mA with load
0.1 mA with no load
0.45 mA at 1.5 ksample/s sampling rate
120 mA for 10 ms per switch
5 mA without backlight, 50 mA for back-
light, 5 mA for each LED (max. 7 LEDs)
5
devPowerSet
Power Consumption
10
VIN (V)
15
function. Table E-1 lists the sections.
20
25
Rabbit 3000 Port
Controlled by
30
PG4, PG5
PG1
PG0
PB6
PB0
Fox (LP3500)