| Erik Malund 03/13/10 07:04 Read: 109 times Mt Airy, Nc USA |
#174111 - '245 and '51 Responding to: Jason Khoo's previous message |
I have seen the '245 used in cases (yes multiple) where it was totally unnecessary by people that did not have the "wired OR" concept, '51 buses works on, clear in their head.
Not saying it never is relevant to use a '245 with a regular '51, just seen the above. Oddly enough some of the most modern '51 derivatives, the SILabs micros have brought the '245, albeit often the 4245 back in use because their chips do not have the "brief strong pullup" of the ports. Erik |
| Topic | Author | Date |
| Wanna ask about SN74LS245 Octal Bus Transceivers | Jason Khoo | 03/12/10 09:39 |
| backwards | Andy Peters | 03/12/10 12:22 |
| more specific | Jason Khoo | 03/12/10 19:33 |
| The clue is in the name! | Andy Neil | 03/12/10 12:54 |
| More question | Jason Khoo | 03/12/10 19:37 |
| Usually not needed... | Kai Klaas | 03/12/10 13:20 |
| correction | Jason Khoo | 03/12/10 19:41 |
| Correction?? | Kai Klaas | 03/14/10 09:23 |
| Tell your lecturer ... | Rob Klein | 03/14/10 09:55 |
| First page of data sheet... | Michael Karas | 03/14/10 10:26 |
| What did he actually mean by that? | Andy Neil | 03/14/10 12:50 |
| In the spec i need explanation a bit | Jason Khoo | 03/12/10 23:24 |
explanation | Andy Peters | 03/16/10 12:45 |
| '245 and '51 | Erik Malund | 03/13/10 07:04 |