| ??? 09/29/05 12:16 Read: times |
#101711 - 245 Responding to: ???'s previous message |
I have had systems that 1) was not running BASIC and b) used old slower (12/12) chips using 245's on P0 with no problem.
You DO need to take the delays in the 245 into account when matching the Uc and the memory speeds. Erik |
| Topic | Author | Date |
| Buffering address/data bus Basic-52 | 01/01/70 00:00 | |
| direction | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| '573? | 01/01/70 00:00 | |
| 245 | 01/01/70 00:00 | |
| Only need one latch | 01/01/70 00:00 | |
| Re-read this... | 01/01/70 00:00 | |
| negative logic | 01/01/70 00:00 | |
| caqll a spade a spade | 01/01/70 00:00 | |
| Ok... I follow you, but... | 01/01/70 00:00 | |
| 74F623 instead of 74F245 | 01/01/70 00:00 | |
| I'd stick with a 245 | 01/01/70 00:00 | |
74AC623 is also fast | 01/01/70 00:00 | |
| A little clarification | 01/01/70 00:00 | |
| if you are ANDing them it will never wor | 01/01/70 00:00 | |
| How fast is your memory? | 01/01/70 00:00 |