User`s manual

User’s Manual 29
Table A-2 lists the electrical, mechanical, and environmental specifications for the Rabbit-
Core 2000.
Table A-2. RCM2000 Specifications
Parameter Specification
Board Size
1.90" × 2.30" × 0.50"
(48.3 mm × 58.4 mm × 12.7 mm)
Operating Temperature –40°C to +85°C
Storage Temperature –55°C to +125°C
Humidity 5% to 95%, noncondensing
Input Voltage 4.75 V to 5.25 V DC
Current
58 mA at 9.216 MHz, 5 V DC
74 mA at 12.9024 MHz, 5 V DC
98 mA at 18.432 MHz, 5 V DC
130 mA at 25.8048 MHz, 5 V DC
Standby Current 16 µA (typical), 50 µA (maximum)
General-Purpose I/O
40 parallel I/0 lines grouped in five 8-bit ports:
24 bidirectional, 10 inputs only, 6 outputs only
Memory, I/O Interface
13 address lines, 8 data lines, I/O read/write, buffer
enable, status, clock
Additional Digital Inputs 2 startup mode (for master/slave), reset in
Additional Digital Outputs Watchdog output, reset out
Microprocessor Rabbit 2000
Clock 25.8048 MHz (18.432 MHz option)
SRAM 512K (supports 32K–512K)
Flash EPROM 256K (supports 128K–512K)
Timers
Five 8-bit timers cascadable in pairs, one 10-bit timer
with 2 match registers that each have an interrupt
Serial Ports
Four CMOS-compatible ports. Two ports are
configurable as clocked ports, one is configurable as
RS-232 programming port.
Serial Rate
CMOS
maximum asynchronous 806,400 bps
maximum synchronous 6.45 Mbps
Watchdog/Supervisor Yes
Time/Date Clock Yes