manufacturers

Intel

The "father" of '51.

basic 51

includes automotive

FX ???

RA/RB ???

251 ???

Atmel

The Flashmaker.

Standard 89C

89S

89LP

exTemic

Philips

Standard

6-clock

LPC7xx

LPC9xx

Winbond

78-series

79-series

77-series

SiLabs

TI

Cypress

SST

Goal

less known

Todo: - add links to manufacturers pages (both root and pages relevant to '51)
- add links to families pages, if any
- describe the families - key features, members, tables if available