Specifications

1 - 4
1.3 LITTLE BOARD/286 SPECIFICATIONS
CPU
n 80286 microprocessor
n CPU clock rate: 12 or 16 MHz
n Half speed option for CPU and/or expansion bus
Onboard Memory
n 512K, 1M, 2M, or 4M bytes DRAM with parity
n Award ROM-BIOS with Ampro extensions
n Two spare 28-pin byte-wide sockets, located at D0000h and
D8000h, usable with:
-- 27256 32K byte EPROM's
-- Intel 27011 128K byte page-addressed EPROM's
-- 62256 32k byte static RAM's
-- Dallas DS1230 32K byte nonvolatile RAM's
-- Dallas DS1217 series NOVRAM cartridges
n 1K bit serial EEPROM, with 512 bits for OEM use
AT-Compatible Controllers
n 2 fully compatible RS232C serial ports
n Parallel printer port with bidirectional data lines
n Standard AT keyboard port
n Speaker port with 0.1 watt output drive
n Standard battery-backed real time clock with 10 year internal lithium battery
n AT-compatible mini (5-1/4") and micro (3-1/2") floppy controller:
-- 2 drive selects, 1-2 sided, 250/500K bps data rates
-- BIOS supports all standard formats (360K/720K/1.2M/1.44M)
-- Reliable all-digital phase-locked loop & write precompensation
-- Disk change sense line support
n Provision for 80287 math coprocessor option
SCSI Interface
n Full ANSI X3.131 (SCSI) compatible
n Uses high performance Adaptec AIC6250 SCSI controller
n Usable as general purpose programmed I/O lines (48 mA sink)
n Over 1.5 megabyte/sec data throughput
Physical
n 8.0 x 5.75 x 1.1 inches (5-1/4 disk drive form factor)
n Mounting slots match 5-1/4" disk drive bottom holes
n Provision for one onboard Ampro MiniModule
n Same DC connector as 5-1/4" disk drives
n Power requirement (with 512K bytes RAM):
-- 80C286 CPU: +5V +/- 5% at 1.6 A (typ.)
-- 80L286 CPU: +5V +/- 5% at 1.8 A (typ.)
n 8-layer PCB, with 2 ground layers for low noise
n Uses latest surface mount technology
n Operating environment:
-- 0-70
o
C (assuming adequate airflow)
-- 5-95% relative humidity (non-condensing)
n Storage temperature: -55
o
to +85
o
C