I’m seeking information pertaining to the above VLSI chipset
i’ve searched the web to find details of the pin connections and this was used in number of notebooks using the 486SL CPU
It was part of the SCAMP IV Chipset
VLSI Technology’s notebook chips include the 82C420 System Controller, 82C144 Peripheral Controller, 82C146 PCMCIA
Controller, and the 82C170 LCD Graphics Accelerator. VLSI’s ML Bus is time-multiplexed onto the low 16 bits of the local bus.
I am knocking every door to find the datasheet for the VL82C420
It is known the chip was used in the following notebooks in the 90’s
AST Ascentia 910N
Compaq Lte Elite 4/50CX, 4/75C, 75CX, 75CX
IBM Thinkpad 230Cs
IBM Palmtop PC110
If anyone has the datasheet or pinout then please contact me.
Thanks Mike
