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STD 2 Channel I2C/Serial Level Shifter
License: Public Domain
Mode: Editors' pick
- 3
Update time：
2020-09-06 00:25:22
Creation time：
2019-09-06 16:40:14
Description
I2C/Serial Bi-Directional device to safely connect 5V MCUs to 3.3v Modules
If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. This bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.
* Standalone module, no external components required
* The level converter is very easy to use, just put in series with connection wires
* On-board 3.3 voltage regulator, BSS138 FETs, pull-up resistors and power LED
* 2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I2C application
Design Drawing
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2 Channel I2C Level Shifter
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2 Channel I2C Level Shifter Double sided PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | V_REG_LM1117SOT223 | U1 | SOT223 | 1 |
| 2 | 10u | C1,C2 | 0805 | 2 |
| 3 | BSS138 | Q2,Q1 | SOT-23-3 | 2 |
| 4 | 10k | R3,R4,R1,R2 | 0805R | 4 |
| 5 | 150 | R5 | 0805R | 1 |
| 6 | E6C0805UG | LED1 | LED-0805 | 1 |
| 7 | I2C High | P1 | CONECTOR_4.PIN_XH2.54-4A | 1 |
| 8 | I2C Low | P2 | CONECTOR_4.PIN_XH2.54-4A | 1 |
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