Motorola 6800
![](http://w140.com/tekwiki/images/thumb/a/a5/MC6800.jpg/350px-MC6800.jpg)
The Motorola 6800 (P/N 156-0426-00,156-2413-00,156-5472-01) is an 8-bit microprocessor monolithic integrated circuit family introduced in 1974.
The original 6800 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.
![](http://w140.com/tekwiki/images/1/10/Motorola_6800.png)
The 6805 CMOS family, which includes the MC146805, is neither source- nor object-code compatible with the MC6800 but very similar. It removes the B register, and related opposes are re-used for read/modify/write functions using the X register which is 8 bits. The V flag and DAA opcode are removed; stack control is reduced, with an 8-bit SP register initialized to $007f. In turn, bit manipulation and new jump opcodes are added, and new addressing modes exist. The MC146805 is a low-power 6805 with on-chip I/O (16 bits), timer, and RAM (112 bytes). It has a multiplexed external bus and 8K address range.
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.
Links
- Motorola 6800 / 68HC11 @ Wikipedia
- F9DASM - a 6800/6801/6802/6803/6808/6809/6301/6303/6309 Disassembler
- 6805 Users Manual, 2nd Ed. 1983
Used in
- 021-0206-00 (6802)
- 021-0374-00 (6802)
- 067-0902-00
- 067-1137-99 (6802)
- 222 / 222A (68HC11)
- 2424L (6805)
- 2445 / 2465 / 2467 (68A08)
- 4051
- 7250 (6803)
- 7912 (6802)
- 7A16P
- 7A29P (6802)
- 7B81P
- 7B90P
- 833,834,835,836 (68B02, Display)
- CG5001 / CG551AP (6800)
- CG5010 / CG5011 (6808)
- DF1 / DF2 (6800)
- DM5010 (6802)
- FG5010 (6802)
- MI5010, SI5010 (6802)
- PS5004 (6808)
- PS5010 (6800)
- SG5010 (6808)
- Keithley 175 (MC146805)
- Keithley 175A (MC146805)
- Keithley 181 (6802)
- Keithley 191 (6802)
- Keithley 192 (6808)
- Keithley 195 (6808)
- Keithley 195A (6808)
- Keithley 197 (MC146805)
- Keithley 199 (68B09)
- Keithley 220 (6808)
- Keithley 224 (6808)
- Keithley 230 (6808)
- Keithley 263 (MC146805)
- Keithley 485 (MC146805)
- Keithley 4853 (MC146805E2)
- Keithley 580 (MC146805)
- Keithley 617 (MC146805)
Some instruments using part Motorola 6800
Instrument | Manufacturer | Class | Model | Description | Introduced |
---|---|---|---|---|---|
021-0206-00 | Tektronix | Interface | 021-0206-00 | GPIB Interface for P7001 | (?) |
021-0374-00 | Tektronix | Plug-in | 021-0374-00 GPIB Decoder | GPIB Interface | 1986 |
067-0902-00 | Tektronix | Calibration fixture | 067-0902-00 | microprocessor troubleshooting tool | (?) |
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 |
222A | Tektronix | Oscilloscope | 222 | 10 MHz battery-powered mini digital scope | 1993 |
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 |
2467 | Tektronix | Oscilloscope | 2467 | Portable 350/400 MHz 4-ch micro-channel scope | 1986 |
4051 | Tektronix | Computer | 4051 | Graphics-capable desktop microcomputer | 1975 |
7250 | Tektronix | Oscilloscope | 7250 | 6 GHz Transient Digitizer | 1986 |
7912 | Tektronix | Oscilloscope | 7912 | 500/750 MHz digitizer | 1973 |
7912AD | Tektronix | Oscilloscope | 7912AD | 500 MHz digitizer | 1978 |
7A16P | Tektronix | Plug-in | 7A16P | 150/200 MHz vertical amplifier | 1978 |
7A29P | Tektronix | Plug-in | 7A29P | 1 GHz programmable amplifier | 1988 |
7B81P | Tektronix | Plug-in | 7B81P | programmable timebase | (?) |
7B90P | Tektronix | Plug-in | 7B90P | 400 MHz programmable timebase | 1978 |
833 | Tektronix | Logic Analyzer | 833 | Programmable data communications tester | 1980 |
834 | Tektronix | Logic Analyzer | 834 | Programmable data communications tester | 1980 |
835 | Tektronix | Logic Analyzer | 835 | Programmable data communications tester | 1986 |
836 | Tektronix | Logic Analyzer | 836 | Programmable data communications tester | 1986 |
CG5001 | Tektronix | Plug-in | CG5001 | programmable calibration generator | 1983 |
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 |
DF2 | Tektronix | Plug-in | DF2 | display formatter | 1978 |
DM5010 | Tektronix | Plug-in | DM5010 | programmable 4½-digit multimeter | 1982 |
FG5010 | Tektronix | Plug-in | FG5010 | 20 MHz function generator | 1982 |
Keithley 175A | Keithley | Multimeter | 175A | 4½-digit TRMS digital multimeter | (?) |
Keithley 181 | Keithley | Multimeter | 181 | 5½-digit nanovoltmeter | (?) |
Keithley 191 | Keithley | Multimeter | 191 | 5½-digit multimeter | 1979 |
Keithley 192 | Keithley | Multimeter | 192 | 6½-digit multimeter | 1979 |
Keithley 195 | Keithley | Multimeter | 195 | 5½-digit TRMS digital multimeter | (?) |
Keithley 195A | Keithley | Multimeter | 195A | 5½-digit TRMS digital multimeter | 1984 |
Keithley 197 | Keithley | Multimeter | 197 | 5½-digit digital multimeter | (?) |
Keithley 220 | Keithley | Power supply | 220 | Programmable current source | (?) |
Keithley 224 | Keithley | Power supply | 224 | Programmable current source | (?) |
Keithley 230 | Keithley | Power supply | 230 | Programmable voltage source | (?) |
Keithley 263 | Keithley | Power supply | 263 | 5½-digit calibrator / source | (?) |
Keithley 485 | Keithley | Multimeter | 485 | Digital picoamperemeter | (?) |
Keithley 580 | Keithley | Multimeter | 580 | 5½-digit microohmmeter | 1985 |
Keithley 617 | Keithley | Multimeter | 617 | Electrometer/Source | 1984 |
MI5010 | Tektronix | Plug-in | MI5010 | multifunction interface | 1982 |
PS5004 | Tektronix | Plug-in | PS5004 | programmable precision power supply | 1984 |
PS5010 | Tektronix | Plug-in | PS5010 | programmable triple power supply | 1982 |
SG5010 | Tektronix | Plug-in | SG5010 | audio signal generator | 1984 |
SI5010 | Tektronix | Plug-in | SI5010 | GPIB-controllable 50 Ω BNC switch matrix | 1982 |
Supported by
Part numbers
- 156-0426-00: MC6800L
- 156-2413-00: MC68B02
- 156-5472-01: MC68HC11A8FN1
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