Motorola_MC6820L_MC6821L.jpg
Size of this preview:
709 × 600 pixels
.
Other resolutions:
284 × 240 pixels
|
567 × 480 pixels
|
908 × 768 pixels
|
1,210 × 1,024 pixels
|
1,300 × 1,100 pixels
.
Summary
| Description | Motorola M6800 family Peripheral Interface Adapters (PIA). The PIA has two bidirectional 8-bit interface ports each with two control lines. The MC6820 was introduced in 1974 and fabricated with enhancement-mode NMOS. In 1976 the family was moved to a depletion-load technology to reduce chips size and increase speed. The electrical characteristics of the PIA interface were changed and the new part was named the MC6821. The L suffix indicates a ceramic package; the P suffix was for a plastic package. |
| Date | |
| Source | Own work |
| Author | Swtpc6800 en:User:Swtpc6800 Michael Holley |
Licensing
|
I, the copyright holder of this work, release this work into the
public domain
. This applies worldwide.
In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law. |