Intel 8051

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The Intel 8051 is an 8-bit microcontroller monolithic integrated circuit (family), introduced in 1980.

The 8051 is the original version with 4 KB ROM and 128 byte RAM. The 8052 had 8 KB ROM and 256 byte RAM. There are also EPROM-based variants (8751 etc.), ROM-less versions (8031 with 128 bytes RAM, 8032 with 256 bytes RAM), and countless later versions from a large number of manufacturers in NMOS and CMOS, also with more peripherals built in.

The 11A32 and 11A34 use a compatible OKI part with 16 KByte on-chip ROM (160-3663-00) to accommodate their 14 KByte code.

Links

Pinout (click to enlarge)

Used in

Some instruments using part Intel 8051

Instrument Manufacturer Class Model Description Introduced
11A32 Tektronix Plug-in 11A32 400 MHz dual channel vertical plug-in 1987
11A34 Tektronix Plug-in 11A34 Quad channel 300 MHz amplifier 1987
WFM300 Tektronix Audio/Video WFM300 TV waveform monitor 1986
  • WFM300: SC80C451CCA68

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