| ??? 06/21/05 16:03 Read: times |
#95490 - level shifters or not Responding to: ???'s previous message |
I havent ever had to use a level shifter with altera devices whereas you always need one with xilinx devices.
level shifters or not really is a matter of two things. a) noise margin can be severely limite when operating w/o a level shifter and b) operating w/o a level shifter means resistive pull-up and the associated increase of Tlh. I can easily believe that some 3.3 devices will be closer to the %V Vi specs than others and thus Jezs comment. Erik |
| Topic | Author | Date |
| OT: FPGA Kits | 01/01/70 00:00 | |
| 8 bit or 16 bit is not the issue | 01/01/70 00:00 | |
| I would recommend | 01/01/70 00:00 | |
| OOOps | 01/01/70 00:00 | |
| a small typo | 01/01/70 00:00 | |
| re: OT: FPGA kits | 01/01/70 00:00 | |
| Caution ... | 01/01/70 00:00 | |
| 3.3 and 5 | 01/01/70 00:00 | |
| I'm going to go with.... | 01/01/70 00:00 | |
| 8051 with built-in FPGA | 01/01/70 00:00 | |
| cost | 01/01/70 00:00 | |
| i must add | 01/01/70 00:00 | |
| level shifters or not | 01/01/70 00:00 | |
| Cheap FPGA Kit | 01/01/70 00:00 | |
| Under fifty quid! | 01/01/70 00:00 | |
| A book | 01/01/70 00:00 | |
| Ordered | 01/01/70 00:00 | |
| May I suggest... | 01/01/70 00:00 | |
| Great link | 01/01/70 00:00 | |
| Indeed, good link | 01/01/70 00:00 | |
| FYI: One from Hitex | 01/01/70 00:00 | |
Diligent | 01/01/70 00:00 |