1.2 LITTLE BOARD/286 FEATURES A Complete AT Compatible System on One Board n All the functions of a motherboard and 4 expansion cards in the space of a half-height 5-1/4" disk drive! n Runs standard IBM PC and PC/AT software, including: -- Disk Operating Systems -- Languages (C, Pascal, Fortran, Basic,...) -- Industrial and commercial applications software n Powerful 12 MHz or 16 MHz 80286 CPU n Standard AT DMA, timers, and interrupt controllers n Complete onboard system memory: 512K, 1M, 2M, or 4M bytes onboard DRAM, and up to 320K bytes EPROM n Complete set of AT-compatible peripheral ports and controllers: -- Mini/Micro floppy controller -- 2 RS232C serial ports, parallel printer port, keyboard port, and speaker port -- Optional multi-mode video controller modules -- Battery-backed real time clock n Onboard expansion module option: -- Three choices of onboard display controllers (EGA/CGA/MDA/Hercules CRT, CGA/MDA/Hercules CRT, CGA compatible LCD) -- Future onboard modules available (contact factory) n Industrialized ROM-BIOS, with support for a wide variety of SCSI devices (hard disk, tape, bubble memory,...) as well as on- and off-board bootable Solid State Disk Ideal for Embedded Applications n Low power (mostly CMOS): -- Uses less than 9 watts of power! -- Single supply operation (+5V only) o n Wide operating temperature range (0-70 C) n Reliable: -- Low component count (30 active components, plus RAM) -- No backplanes or edgecard connectors required n Onboard bootable Solid State Disk drive (EPROM/NOVRAM) option allows diskless DOS operation n Same form factor and mounting dimensions as a 5-1/4" disk drive Two Industry Standard Expansion Buses n AT bus (header) for connection of standard IBM PC and PC/AT expansion cards n SCSI bus for addition of Disk/Tape/Optical/Bubble drives, Scanners, and other peripheral devices 1 - 3 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: o -- 0-70 C (assuming adequate airflow) -- 5-95% relative humidity (non-condensing) o o n Storage temperature: -55 to +85 C 1 - 4