Half Size ISA

ISA Bus 486DX4-100 CPU Card Single +5V Support




AT-4180 has 486DX4/100 CPU onboard, CPU is built in the ACC Maple Chipset. Up to 64MB of
RAM memory are supported by the two 72-pin SIMM sockets on board.

One DiskOnChip socket supports 2MB~72MB of flash disks. And One PC-104 expansion slot is
provided for add-on card.



  • Half-size, ISA Bus standard
  • 486DX4/100 CPU on board (Built-in ACC Maple Chipset)
  • Two 72-pin SIMM sockets support up to 64MB EDO RAM
  • Super I/O supports 1 x RS-232 port and 1 x RS-232/422/485 selectable port , and 1 x parallel port (support SPP/EPP/ECP mode )
  • AMI PnP Flash BIOS



Processor Socket 486DX4/100 CPU on board (Built-in ACC Maple Chipset)
Processor Speeds Intel / AMD / Cyrix / SGS / IBM... 486DX /5x86 CPU up to 133MHz
Chipset ACC Maple Chipset
Bus Speed 66MHz
Bus Interface ISA
Cache Size 128KB (AT-4200 only)
Memory Two 72-pin SIMM sockets, Max. 64MB EDO RAM
Onboard IDE One port by 40-pin pin-header, supports PIO-4 mode
Onboard Multi I/O 1 x RS-232 port and 1 x RS-232/422/485 selectable port , and 1 x parallel
port ( support SPP/EPP/ECP mode )
Keyboard PS/2 6-pin Mini Din or 5-pin header
Mouse PS/2 Designed to release one RS-232 port
Onboard SSD DIP socket supports 2MB~144MB DiskOnChip Flash Disks
Watchdog Timer Set by 1, 2, 10, 20, 110, or 220 seconds period. RESET or NMI was generated when CPU did not periodically trigger the timer
PS2 Power PS2 power control
Extra Power External +5V 2-pin header for AT-4200 and 8-pin male connector for AT-4201
Power Voltage +5V (4.75~5.25V)
Power Consumptione 2.5A@+5V ( DX4/100 and 32MB EDO RAM)
Temperature 0C to 60C
Humidity 5% to 95%
Form Factor Half-size form factor
Dimensions 7.3" x 4.8" (185mm x 122mm)
AT-4180 Half Size ISA 486DX4/100 CPU Card with 486DX4/100 CPU on board




Embedded Boards - Riser Cards, Chassis, Power Supplies, EBX Embedded Boards, PC104
Half size, 386, 486, 586, Pentium, Full size, PII, PIII, Celleron, Coppermine and Embedded.
PICMG, PISA, and ISA backplanes from 2 slot to 20 slot, segmented and non segmented.
Rackmount Chassis 19"- 1U, 2U, 3U, 4U, 6U and 7U, Wallmount, 4, 6, 8 slot Half and full sized
Peripherals, Power supplies, Monitor Enclosures, Rack Mount Keyboards
Panel PC Embedded Computers


All Industrial Systems Inc.
672 Still Meadows Circle East
Palm Harbor, Florida 34683
Phone # 727-786-1009