|
| | Motorola MC6800
General
|
General Information
|
The
6800 was Motorola's first microprocessor. The 6800 was introduced to
directly compete with Intel’s 8080. Much of the design was based on
Intel’s 8008. The 6800 had a very similar architecture to the 8080 with
some differences at the register level. For example, the 6800 had two
accumulators while the 8080 had one. The 6800 a smaller number of general
purpose registers, but had a index register for array access to memory.
The 6800’s instructions are more complex that the 8080. Depending on the
application either processor could slightly faster than the other. |
Production
|
2nd Quarter 1974 |
| Designers |
Unknown |
Architecture
| Type |
Data Word |
Address Space |
Clock |
Instruct- ions |
Assists |
Reg's GP |
Reg's Math |
Reg's Index |
IO Ports |
Stack |
Interrupts |
Memory |
| CPU,
NMOS |
8-bit |
64K |
1Mhz |
78 |
BCD |
2 |
0 |
1 |
8 |
Ext RAM |
Vectored Multi-level |
NA |
Packages
|
Chip Name |
Package
|
On-Chip Identification |
Picture |
General Comments
|
| MC6800L |
Gray ceramic, gold lid, 40 gold side braised leads |
MC6800L |
 |
Standard versions had a temperature range of 0-70oC. |
| MC6800S |
|
MC6800S |
|
S = CerDIP?
L = Ceramic?
|
| MC6800D |
|
MC6800D |
|
|
| MC6800P |
Black plastic, 40 tin leads |
MC6800P |
 |
|
| MC6800CL |
|
MC6800CL |
|
"C" versions had a temperature range of -40-85oC. |
| MC6800CS |
|
MC6800CS |
|
|
| MC6800CD |
|
MC6800CD |
|
|
| MC6800CP |
Black plastic, 40 tin leads |
MC6800CP |
 |
|
| MC68A00P |
|
|
|
|
| MC68A00S |
|
|
|
|
| MC68A00CP |
|
|
|
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| MC68A00CL |
|
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| MC68B00P |
|
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| MC68B00S |
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Related Chips
|
Related Chips
|
MC6801, MC6802, MC6803, MC6805, MC6809 |
|
Second Sources |
AMI, Fairchild, Hitachi |
| Support Chips |
|
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|
