SparkFun Logic Level Converter - Single Supply
Single-supply logic-level and power-rail translator in one compact board, for interfacing devices that run at different voltages without needing a separate power supply rail.
Pinout
- VINheader pin
Input supply voltage for onboard converter
Type · PowerVoltage · 3-5.5V - GNDheader pin
Ground reference
Type · GroundVoltage · 0V - VOUT, 5Vheader pin
Boost converter voltage output for high-side reference
Type · PowerVoltage · 5V - VOUT, 3.3Vheader pin
Regulated low-side voltage output, adjustable by resistor
Type · PowerVoltage · 3.3V default - A1A-side header
Low-side translated channel 1
Type · AnalogVoltage · VCCA logic, 3.3V default - A2A-side header
Low-side translated channel 2
Type · AnalogVoltage · VCCA logic, 3.3V default - A3A-side header
Low-side translated channel 3
Type · AnalogVoltage · VCCA logic, 3.3V default - A4A-side header
Low-side translated channel 4
Type · AnalogVoltage · VCCA logic, 3.3V default - B1B-side header
High-side translated channel 1
Type · SignalVoltage · 5V logic - B2B-side header
High-side translated channel 2
Type · SignalVoltage · 5V logic - B3B-side header
High-side translated channel 3
Type · SignalVoltage · 5V logic - B4B-side header
High-side translated channel 4
Type · SignalVoltage · 5V logic
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VIN | header pin | Power | Input supply voltage for onboard converter | 3-5.5V |
| GND | header pin | Ground | Ground reference | 0V |
| VOUT, 5V | header pin | Power | Boost converter voltage output for high-side reference | 5V |
| VOUT, 3.3V | header pin | Power | Regulated low-side voltage output, adjustable by resistor | 3.3V default |
| A1 | A-side header | Analog | Low-side translated channel 1 | VCCA logic, 3.3V default |
| A2 | A-side header | Analog | Low-side translated channel 2 | VCCA logic, 3.3V default |
| A3 | A-side header | Analog | Low-side translated channel 3 | VCCA logic, 3.3V default |
| A4 | A-side header | Analog | Low-side translated channel 4 | VCCA logic, 3.3V default |
| B1 | B-side header | Signal | High-side translated channel 1 | 5V logic |
| B2 | B-side header | Signal | High-side translated channel 2 | 5V logic |
| B3 | B-side header | Signal | High-side translated channel 3 | 5V logic |
| B4 | B-side header | Signal | High-side translated channel 4 | 5V logic |
Pin details
12 connections- VINheader pin
Input supply voltage for onboard converter
PowerVoltage · 3-5.5V - GNDheader pin
Ground reference
GroundVoltage · 0V - VOUT, 5Vheader pin
Boost converter voltage output for high-side reference
PowerVoltage · 5V - VOUT, 3.3Vheader pin
Regulated low-side voltage output, adjustable by resistor
PowerVoltage · 3.3V default - A1A-side header
Low-side translated channel 1
AnalogVoltage · VCCA logic, 3.3V default - A2A-side header
Low-side translated channel 2
AnalogVoltage · VCCA logic, 3.3V default - A3A-side header
Low-side translated channel 3
AnalogVoltage · VCCA logic, 3.3V default - A4A-side header
Low-side translated channel 4
AnalogVoltage · VCCA logic, 3.3V default - B1B-side header
High-side translated channel 1
SignalVoltage · 5V logic - B2B-side header
High-side translated channel 2
SignalVoltage · 5V logic - B3B-side header
High-side translated channel 3
SignalVoltage · 5V logic - B4B-side header
High-side translated channel 4
SignalVoltage · 5V logic
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