Intel 301 System board (PBA 451213-xxx)

Description

Chips

BIOS 4

Drivers 0

Documentation 2

Logs

Chipset

(multiple brand) Discrete Logic

Sockets

FSB speed

16MHz

Form factor

AT (max 305 x 330 mm)

Dimensions

305mm x 330mm

Cache

None/Integrated in the CPU

Max RAM size

512KB(soldered onboard)16MB(with expansion cards)

RAM type

DIP-16 (1bit)

PSU connector

AT (6-pin P8 + 6-pin P9)

Also known as

KayPro/NLS 386 E
Intel iSBC 386AT
Commodore PC 60-40
Commodore PC 60-80

I/O ports

AT Keyboard

Parallel

Serial

Expansion slots

16-bit ISA

8-bit ISA

Notes

the 6 pin connector below the AT power connector is for optional additional 5V
has non standard 32bit expansion slots for memory expansion and other cards
memory settings and capabilities vary by the used PAL at U142.
451301-001 allows for up to 10MB, 454444-001 up to 16MB
memory cards were 386MEM020 (PBA 149385-001) and 386MEM080
a reproduction 2/8MB memory card can be found at https://github.com/ronnyroyal/386-memory-board

Last updated 2025-12-15T22:38:19Z

Board info score is 8.8/10

Chips

-> Chipset part

Intel 8284A (Clock Generator and Driver) (multiple brand) 74LS612 (Memory Mapper) (multiple brand) Discrete Logic Intel 8237A (DMA Controller) Intel 8254 (Programmable Interval Timer) Intel 8259A (Programmable Interrupt Ctrl.)

-> Real-Time Clock

(multiple brand) 6818A

-> Signal transmitter/receiver

(multiple brand) MC1488 (RS-232 Driver) (multiple brand) MC1489 (RS-232 Receiver)

-> UART ctrl.

(multiple brand) 16450 (High-speed UART)