Motorola 6800

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The Motorola 6800  (P/N 156-0426-00) is an 8-bit microprocessor monolithic integrated circuit introduced in 1974.

It requires a +5 V supply only (generating bias voltages on chip) and came initially in 40-pin DIL packages. The 6800 has non-multiplexed data (8 bit) and address (16 bit) buses, and requires an external non-overlapping two-phase 0.1 − 1 MHz clock (later versions from 1976 on up to 2 MHz).

The 6802, introduced in 1977, includes 128 bytes RAM and an internal clock oscillator. The 6808 is the same without RAM.

DIL Pinout (click to enlarge)

The 68HC11, introduced in 1984, is an upward-compatible microcontroller that adds a second index register, 8x8 multiply and 16/16 divide instructions, as well as a range of 16-bit instructions that treat A and B as a combined 16-bit accumulator. On-chip peripherals include timers, parallel ports, A/D, SPI and UART.


Used in

Some instruments using part Motorola 6800

Instrument Manufacturer Class Model Description Introduced
021-0374-00 Tektronix Plug-in 021-0374-00 GPIB Decoder GPIB interface 1986
067-1137-99 Tektronix Plug-in 067-1137-99 GPIB to accessory controller 1984
222 Tektronix Oscilloscope 222 10 MHz battery-powered mini digital scope 1990
2424L Tektronix Oscilloscope 2424L 10/100 MHz, 25 MS/s digital scope 1989
2445 Tektronix Oscilloscope 2445 Portable 150 MHz 4-ch scope 1984
2465 Tektronix Oscilloscope 2465 Portable 150/300 MHz 4-ch scope 1984
4051 Tektronix Computer 4051 Graphics-capable desktop microcomputer 1975
7912 Tektronix Oscilloscope 7912 500/750 MHz digitizer 1973
7A16P Tektronix Plug-in 7A16P 150/200 MHz vertical amplifier 1978
7B81P Tektronix Plug-in 7B81P programmable timebase (?)
7B90P Tektronix Plug-in 7B90P 400 MHz programmable timebase 1978
CG5001 Tektronix Plug-in CG5001 programmable calibration generator (?)
CG5010 Tektronix Plug-in CG5010 programmable calibration generator 1990
CG5011 Tektronix Plug-in CG5011 programmable calibration generator 1990
CG551AP Tektronix Plug-in CG551AP programmable calibration generator 1980
DF1 Tektronix Plug-in DF1 display formatter 1976
DM5010 Tektronix Plug-in DM5010 programmable 4½-digit multimeter 1982
PS5004 Tektronix Plug-in PS5004 programmable precision power supply 1984
PS5010 Tektronix Plug-in PS5010 programmable triple power supply 1982

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