| ??? 08/02/12 21:09 Read: times |
#187987 - Wide Vcc CPLDs sadly rare Responding to: ???'s previous message |
Richard Erlacher said:
Perhaps certain CPLD's would do the job It is an obvious capability that they SHOULD have, but sadly, CPLD vendors are glacial in joining Microcontrollers in Wide Vcc operation. The newest 1.8V core CPLD's either limit to 3.3V max, or they have many caveats on what are 'somewhat 5V tolerant' outputs. NONE will formally specify an ability to drive to 5V on one side, from a 1.8V input on the other. Best devices for this are the Dual-Rail Voltage Translators, as you can properly drive push-pull with those. |
| Topic | Author | Date |
| CPLD level translators | 01/01/70 00:00 | |
| TI Voltage level translators ? | 01/01/70 00:00 | |
| thanks | 01/01/70 00:00 | |
| Why specifically CPLD? | 01/01/70 00:00 | |
| True | 01/01/70 00:00 | |
| Perhaps certain CPLD's would do the job | 01/01/70 00:00 | |
| Wide Vcc CPLDs sadly rare | 01/01/70 00:00 | |
| forgive my ignorance, but ... | 01/01/70 00:00 | |
| some examples | 01/01/70 00:00 | |
| Same for ARM | 01/01/70 00:00 | |
| some small devices have OCR too | 01/01/70 00:00 | |
| Bigger chips | 01/01/70 00:00 | |
Altera FPGAs | 01/01/70 00:00 |