| ??? 10/09/10 15:19 Read: times |
#179011 - CPLD/FPGA Responding to: ???'s previous message |
You could also look at one of the CPLD / FPGA type devices. This class of device often has I/O cells that include the options for configurable weak pullups _and/or_ pulldowns.
You could then program the device to offer the desired interface to your MCU. Michael Karas |
| Topic | Author | Date |
| 5V configurable bus expansions? | 01/01/70 00:00 | |
| have a look | 01/01/70 00:00 | |
| Like this ? | 01/01/70 00:00 | |
| CPLD/FPGA | 01/01/70 00:00 | |
| Maxim chip looking real nice | 01/01/70 00:00 | |
| 7301 | 01/01/70 00:00 | |
| But SPI as carrier is at least very easy to use | 01/01/70 00:00 | |
| unfair comparison | 01/01/70 00:00 | |
| Not really true | 01/01/70 00:00 | |
| I2C | 01/01/70 00:00 | |
| Don't entirely agree | 01/01/70 00:00 | |
| picky | 01/01/70 00:00 | |
| Not even that! | 01/01/70 00:00 | |
| Agree | 01/01/70 00:00 | |
| Subject is changed. | 01/01/70 00:00 | |
External pull-up or '245 are much too limiting | 01/01/70 00:00 | |
| Totally Agree | 01/01/70 00:00 |