4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter
4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter
The 4 Channel Bi-Directional Logic Level Converter is a versatile and compact component designed to facilitate reliable communication between devices operating at different voltage levels. This component is capable of converting signals between 3.3V and 5V logic levels, making it an essential tool for integrated circuits, microcontrollers, and IoT devices.
The primary function of this component is to convert digital signals between two different voltage levels, ensuring seamless communication between devices with incompatible logic levels. This bi-directional converter supports both I2C (Inter-Integrated Circuit) and SPI (Serial Peripheral Interface) communication protocols.
| ### Voltage Conversion |
Converts digital signals between 3.3V and 5V logic levels
Supports both I2C and SPI communication protocols
Bi-directional conversion, allowing data transmission in both directions
| ### Channel Configuration |
4 independent channels for parallel conversion
Each channel can be configured for I2C or SPI mode
| ### Operating Characteristics |
3.3V to 5V
10%
5%
10mA
<10ns
| ### Package and Pinout |
Available in a compact QFN (Quad Flat No-Lead) package
+ VCC (power supply, 3.3V or 5V)
+ GND (ground)
+ 4 x Channels (each with Tx and Rx pins)
| ### Applications | |
| Interfacing between 3.3V and 5V devices, such as |
+ Microcontrollers (e.g., Arduino, Raspberry Pi)
+ Integrated Circuits (e.g., sensors, displays)
+ IoT devices (e.g., smart home devices, wearables)
Prototyping and development of IoT projects
Hobbyist and DIY projects requiring voltage level conversion
Compact design saves board space
Easy to use and integrate into projects
Supports both I2C and SPI communication protocols
Fast propagation delay ensures reliable data transmission
-40C to 85C
-40C to 125C
3 (JEDEC J-STD-020)
The 4 Channel Bi-Directional Logic Level Converter is available in a QFN package and can be ordered through various online marketplaces and electronics distributors. Please consult the manufacturer's documentation for detailed ordering information and pricing.
Component Documentation: 4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level ConverterOverviewThe 4 Channel Bi-Directional Logic Level Converter is a versatile component that enables communication between devices with different logic voltage levels. It can convert signals between 3.3V and 5V in both I2C and SPI protocols, making it an ideal solution for a wide range of IoT applications.Features4-channel bi-directional conversion
Supports both I2C and SPI protocols
Voltage conversion between 3.3V and 5V
High-speed conversion up to 10MHz
Low power consumption
Compact designPinoutThe component has a total of 10 pins, with the following pinout:VCC (3.3V or 5V): Power supply voltage
GND: Ground
LV1-LV4 (3.3V): Low-voltage input/output pins
HV1-HV4 (5V): High-voltage input/output pinsCode Examples### Example 1: Using the Logic Level Converter with Arduino and I2CIn this example, we'll demonstrate how to use the logic level converter to communicate between an Arduino boards (operating at 5V) and an I2C sensor module (operating at 3.3V).Arduino Code:
```c++
#include <Wire.h>#define I2C_SENSOR_ADDRESS 0x1Avoid setup() {
Wire.begin(); // Initialize I2C bus
}void loop() {
byte data;
Wire.beginTransmission(I2C_SENSOR_ADDRESS);
Wire.write(0x00); // Register address
Wire.endTransmission();
Wire.requestFrom(I2C_SENSOR_ADDRESS, 1);
data = Wire.read();
Serial.print("Sensor data: ");
Serial.println(data, HEX);
delay(1000);
}
```
Connection:Connect VCC to Arduino's 5V pin
Connect GND to Arduino's GND pin
Connect LV1 (I2C SCL) to Arduino's SCL pin
Connect LV2 (I2C SDA) to Arduino's SDA pin
Connect HV1 (I2C SCL) to I2C sensor module's SCL pin
Connect HV2 (I2C SDA) to I2C sensor module's SDA pin### Example 2: Using the Logic Level Converter with Raspberry Pi and SPIIn this example, we'll demonstrate how to use the logic level converter to communicate between a Raspberry Pi (operating at 3.3V) and an SPI peripheral device (operating at 5V).Python Code (Raspberry Pi):
```python
import spidevspi = spidev.SpiDev()
spi.open(0, 0) # Open SPI bus 0, chip select 0def read_data():
resp = spi.xfer2([0x01, 0x02, 0x03, 0x04])
return respwhile True:
data = read_data()
print("SPI data:", data)
time.sleep(1)
```
Connection:Connect VCC to Raspberry Pi's 3.3V pin
Connect GND to Raspberry Pi's GND pin
Connect LV1 (SPI SCLK) to Raspberry Pi's SPI CLK pin
Connect LV2 (SPI MISO) to Raspberry Pi's SPI MISO pin
Connect LV3 (SPI MOSI) to Raspberry Pi's SPI MOSI pin
Connect HV1 (SPI SCLK) to SPI peripheral device's SCLK pin
Connect HV2 (SPI MISO) to SPI peripheral device's MISO pin
Connect HV3 (SPI MOSI) to SPI peripheral device's MOSI pinNote: These code examples are for demonstration purposes only and may require modification to suit your specific project requirements. Always ensure the correct voltage levels and communication protocols are used when working with IoT components.