2 Channel I2C/Serial Level Shifter

1 year ago 1671

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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

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2 Channel I2C Level Shifter

2 Channel I2C Level Shifter Double sided PCB

BOM

ID	Name	Designator	Footprint	Quantity	BOM_Manufacturer Part
1	V_REG_LM1117SOT223	U1	SOT223	1	?
2	10u	C1,C2	0805	2	?
3	BSS138	Q2,Q1	SOT-23-3	2	BSS138
4	10k	R3,R4,R1,R2	0805R	4	?
5	150	R7	0805R	1	?
6	E6C0805UG	LED1	LED-0805	1	E6C0805UR
7	I2C High	H1	DIP-1X4P2.54	1	220S-1*4P H=8.5MM Ytype Gold-plated
8	I2C Low	H2	DIP-1X4P2.54	1	220S-1*4P H=8.5MM Ytype Gold-plated