Motorola 6809
The Motorola 6809 is an 8-bit microprocessor monolithic integrated circuit introduced in 1978.
The 6809 is only compatible to its predecessor (the Motorola 6800) on assembler source level, not in binary programs nor electrically.
Improvements over the 6800 allow position-independent and re-entrant code, 16-bit arithmetic, a hardware multiplication instruction, and a fast interrupt system.
It came in 1 MHz, 1.5 MHz (68A09) and 2 MHz (68B09) speed grades, and initially in 40-pin DIL packages.
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Used in
Some instruments using part Motorola 6809
| Instrument | Manufacturer | Class | Model | Description | Introduced |
|---|---|---|---|---|---|
| 2424L | Tektronix | Oscilloscope | 2424L | 10/100 MHz, 25 MS/s digital scope | 1989 |
| 2440 | Tektronix | Oscilloscope | 2440 | 300 MHz, 500 MS/s 2-ch digital scope | 1988 |
| 7D20 | Tektronix | Plug-in | 7D20 | 70 MHz dual-channel digitizer | 1982 |
| DM5120 | Tektronix | Plug-in | DM5120 | programmable 6½-digit multimeter | 1989 |
| Keithley 193A | Keithley | Multimeter | 193A | 6½-digit system multimeter | 1985 |
| Keithley 196 | Keithley | Multimeter | 196 | 6½-digit system multimeter | 1986 |
| Keithley 199 | Keithley | Multimeter | 199 | 5½-digit multimeter | (?) |