| ??? 06/22/05 12:10 Read: times |
#95573 - 5 V TTL Vs 3.3 V TTL |
Recently I came across the comparison chart of various devices ( TTL, CMOS, HCT etc.) it shows that the logic levels VIL, VIH, VOL, VOH for 5 Volt TTL and a 3.3 Volt TTL device are same. Does this means that a HCT Device can be directly interfaced with a 3.3 Volt logic TTL device. Or I am missing something. ( of course the power supplies for the respective devices will be either 5 Volts or 3.3 Volts ) |
| Topic | Author | Date |
| 5 V TTL Vs 3.3 V TTL | 01/01/70 00:00 | |
| what on earth is 3.3V TTL? | 01/01/70 00:00 | |
| re:3.3V TTL | 01/01/70 00:00 | |
| not really | 01/01/70 00:00 | |
| re:not really | 01/01/70 00:00 | |
| had a quick look | 01/01/70 00:00 | |
| Definitely not! | 01/01/70 00:00 | |
| re: TTL terminology | 01/01/70 00:00 | |
re:wrong answer | 01/01/70 00:00 | |
| Where? | 01/01/70 00:00 | |
| philips AN-240 | 01/01/70 00:00 | |
| yeah | 01/01/70 00:00 | |
| 3.3 V LVTTL | 01/01/70 00:00 | |
| Neither of which are TTL | 01/01/70 00:00 |