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interfaces:level [2017/01/15 03:17] darron |
interfaces:level [2022/08/01 17:09] (current) darron [Resources] |
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==== Level conversion ==== | ==== Level conversion ==== | ||
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+ | {{: | ||
</ | </ | ||
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on a breadboard is to use a pre-built adapter. | on a breadboard is to use a pre-built adapter. | ||
- | Two of the more popular types found at places like eBay | + | Two popular types found on eBay |
- | are two channel bi-directional I2C level converters | + | are the two channel bi-directional I2C level shifters |
channel general purpose converters. | channel general purpose converters. | ||
- | === I2C converter | + | === I2C level shifter |
<wrap right> | <wrap right> | ||
- | {{: | + | {{: |
- | {{: | + | |
</ | </ | ||
- | These devices contain two mosfets with pull-ups resistors in the | + | These devices contain two mosfets with 10K pull-up resistors in the |
arrangement specified by the Philips I2C interfacing application note (link below). | arrangement specified by the Philips I2C interfacing application note (link below). | ||
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=== General purpose 4 channel === | === General purpose 4 channel === | ||
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- | {{: | + | {{: |
- | {{: | + | |
</ | </ | ||
+ | These general purpose bi-directional devices feature four mosfets in the Philips application note arrangement with 10K pull-ups. | ||
+ | |||
+ | == Pinout == | ||
+ | |||
+ | < | ||
+ | | ||
+ | | ||
+ | | ||
+ | HIGH VCC HV LV LOW VCC | ||
+ | | ||
+ | | ||
+ | </ | ||
+ | |||
+ | [[: | ||
=== Resources === | === Resources === | ||
- | [[http://www.nxp.com/documents/ | + | [[https://wiki.kewl.org/downloads/ |