Article successfully added.

Pololu Logic Level Shifter, 4-Channel, Bidirectional

€2.32 *

Prices incl. VAT plus shipping costs

Ready to ship today,
Delivery time appr. 1-3 workdays

  • Pololu
  • EXP-R25-370
  • 2595
  • 49
  • US
  • 85439000
  • 0.01
P Secure bonuspoints now
As digital devices get smaller and faster, once ubiquitous 5 V logic has given way to ever... more
As digital devices get smaller and faster, once ubiquitous 5 V logic has given way to ever lower-voltage standards like 3.3 V, 2.5 V, and even 1.8 V, leading to an ecosystem of components that need a little help talking to each other. For example, a 5 V part might fail to read a 3.3 V signal as high, and a 3.3 V part might be damaged by a 5 V signal. This level shifter solves these problems by offering bidirectional voltage translation of up to four independent signals, converting between logic levels as low as 1.5 V on the lower-voltage side and as high as 18 V on the higher-voltage side, and its compact size and breadboard-compatible pin spacing make it easy to integrate into projects.

The logic high levels on each side of the shifter are achieved by 10 kΩ pull-up resistors to their respective supplies; these provide quick enough rise times to allow decent conversion of fast mode (400 kHz) I²C signals or other similarly fast digital interfaces (e.g. SPI or asynchronous TTL serial). External pull-ups can be added to speed up the rise time further at the expense of higher current draw. See the schematic diagram below for more information.

Features:
  • Dual-supply bus translation:
    • Lower-voltage (LV) supply can be 1.5 V to 7 V
    • Higher-voltage (HV) supply can be LV to 18 V
  • Four bidirectional channels
  • Small size: 0.4″ × 0.5″ × 0.08″ (13 mm × 10 mm × 2 mm)
  • Breadboard-compatible pin spacing

Connections:



This logic level converter requires two supply voltages: the lower-voltage logic supply (1.5 V to 7 V) connects to the LV pin and the higher-voltage supply (LV to 18 V) connects to the HV pin. The HV supply must be higher than the LV supply for proper operation. Logic low voltages will pass directly from Hx to the corresponding Lx (and vice versa), while logic high voltages will be converted between the HV level to the LV level as the signal passes from Hx to Lx or Lx to Hx.

The level shifter circuit does not require a ground connection to either device, so there are no ground pins on the board. (Some competing level shifter modules provide ground connections that simply act as a pass-through; we have opted to leave these off and make the board smaller.) The two devices being connected through the level shifter must still share a common ground.

Resources:
Adafruit 4-channel I2C-safe Bi-directional Logic Level Converter - BSS138 Adafruit 4-channel I2C-safe Bi-directional...
€4.22 *
Pololu VL53L1X Time-of-Flight Distance Sensor Carrier with Voltage Regulator, 400cm Max Pololu VL53L1X Time-of-Flight Distance Sensor...
€11.38 *
Adafruit HUZZAH32 ESP32 Feather Board Adafruit HUZZAH32 ESP32 Feather Board
€21.36 *
Pololu 3.3V, 500mA Step-Down Voltage Regulator D24V5F3 Pololu 3.3V, 500mA Step-Down Voltage Regulator...
€4.26 *
Pololu 5V, 500mA Step-Down Voltage Regulator D24V5F5 Pololu 5V, 500mA Step-Down Voltage Regulator...
€4.26 *
Adafruit TXB0104 bidirektionaler Pegelwandler Adafruit TXB0104 bidirektionaler Pegelwandler
€3.75 *
Adafruit 8-channel Bi-directional Logic Level Converter - TXB0108 Adafruit 8-channel Bi-directional Logic Level...
€8.57 *
Pololu 5V Step-Up/Step-Down Voltage Regulator S9V11F5 Pololu 5V Step-Up/Step-Down Voltage Regulator...
€4.76 *
Breadboard 400 (300/100) Breadboard 400 (300/100)
€3.70 *
FeatherWing Proto - Prototyping Add-on For All Feather Boards FeatherWing Proto - Prototyping Add-on For All...
€5.30 *
NodeMCU v2 - Lua based ESP8266 NodeMCU v2 - Lua based ESP8266
€7.95 *
Sparkfun Logic Level Converter Bi-Directional Sparkfun Logic Level Converter Bi-Directional
€2.95 *
Breadboard 830 (630/200) Breadboard 830 (630/200)
€4.50 *
1x40 Pin Break Away Headers - Straight 1x40 Pin Break Away Headers - Straight
€0.95 *
Seeed Studio Grove - Universal 4 pin connector 90 Seeed Studio Grove - Universal 4 pin connector 90
€1.25 *
F/F 200mm Jumper Wires (40 pcs) F/F 200mm Jumper Wires (40 pcs)
€2.38 *
WEMOS D1 Mini WiFi Board based on ESP-8266EX WEMOS D1 Mini WiFi Board based on ESP-8266EX
€5.50 *
CALLIOPE mini CALLIOPE mini
€34.95 *
Jumper Wires Premium 10cm M/M - 20 AWG (30 Pack) Jumper Wires Premium 10cm M/M - 20 AWG (30 Pack)
€2.50 *
Adafruit CP2104 Friend - USB to Serial Converter Adafruit CP2104 Friend - USB to Serial Converter
€6.37 *
Premium Female/Male 'Extension' Jumper Wires - 40 x 6" (150mm) Premium Female/Male 'Extension' Jumper Wires -...
€4.22 *
Adafruit Adalogger FeatherWing - RTC + SD Add-on For All Feather Boards Adafruit Adalogger FeatherWing - RTC + SD...
€9.58 *
Tactile Switch Buttons (12mm square, 6mm tall) x 10 pack Tactile Switch Buttons (12mm square, 6mm tall)...
€2.68 *
Feather Stacking Headers - 12-pin and 16-pin female headers Feather Stacking Headers - 12-pin and 16-pin...
€1.33 *
Feather Header Kit - 12-pin and 16-pin Female Header Set Feather Header Kit - 12-pin and 16-pin Female...
€1.01 *
Adafruit Feather HUZZAH with ESP8266 WiFi Adafruit Feather HUZZAH with ESP8266 WiFi
€18.15 *
SWD (2x5 1.27mm) Cable Breakout Board SWD (2x5 1.27mm) Cable Breakout Board
€2.08 *
Adafruit TCA9548A I2C Multiplexer Adafruit TCA9548A I2C Multiplexer
€7.44 *
Adafruit FT232H Breakout - General Purpose USB to GPIO+SPI+I2C Adafruit FT232H Breakout - General Purpose USB...
€16.01 *
Teensy 3.2 Teensy 3.2
€21.50 *
Pololu 12V Step-Up Voltage Regulator U3V12F12 Pololu 12V Step-Up Voltage Regulator U3V12F12
€3.76 *
Seeed Studio Grove Base Shield V2 Seeed Studio Grove Base Shield V2
€4.76 *
Waveshare 4.2" E-Ink raw display three-color 400x300 Waveshare 4.2" E-Ink raw display three-color...
€25.99 *
Universal e-Paper Raw Panel Driver HAT Universal e-Paper Raw Panel Driver HAT
€9.88 *
Pololu A-Star 328PB Micro - 5V, 20MHz Pololu A-Star 328PB Micro - 5V, 20MHz
€4.95 *
Small Alligator Clip to Male Jumper Wire (6 pcs) Small Alligator Clip to Male Jumper Wire (6 pcs)
€4.22 *
2.9" e-Paper Display Modul mit SPI Interface 2.9" e-Paper Display Modul mit SPI Interface
€18.90 *
1.54" e-Paper Display Modul mit SPI Interface 1.54" e-Paper Display Modul mit SPI Interface
€15.90 *
Seeed Studio CAN-BUS Shield V2 Seeed Studio CAN-BUS Shield V2
€23.32 *
4-Channel 16-Bit ADC for Raspberry Pi (ADS1115) 4-Channel 16-Bit ADC for Raspberry Pi (ADS1115)
€11.34 *
Silicone Cover Stranded-Core Ribbon Cable - 10 Wire 1 Meter Long - 28AWG Black Silicone Cover Stranded-Core Ribbon Cable - 10...
€4.22 *
Hook-up Wire - Red (22 AWG) Hook-up Wire - Red (22 AWG)
€3.57 *
BlueDot BME680 Breakout Board -Temperature, Humidity, Barometer and Gas BlueDot BME680 Breakout Board -Temperature,...
€21.96 *
Texas Instruments 74AHCT125 Quad Level-Shifter (3V to 5V) Texas Instruments 74AHCT125 Quad Level-Shifter...
€0.95 *
9.7:1 Metal Gearmotor 25Dx48L mm MP 12V with 48 CPR Encoder 9.7:1 Metal Gearmotor 25Dx48L mm MP 12V with 48...
€32.25 *
Stranded Wire: Black, 26 AWG, 21m Stranded Wire: Black, 26 AWG, 21m
€4.86 *
Stranded Wire: Red, 24 AWG, 18m Stranded Wire: Red, 24 AWG, 18m
€5.15 *
Stranded Wire: Black, 24 AWG, 18m Stranded Wire: Black, 24 AWG, 18m
€5.15 *
Adafruit ALS-PT19 Analog Light Sensor Breakout Adafruit ALS-PT19 Analog Light Sensor Breakout
€2.68 *
SparkFun Atmospheric Sensor Breakout - BME280 SparkFun Atmospheric Sensor Breakout - BME280
€21.06 *
SparkFun Voltage-Level Translator Breakout TXB0104 SparkFun Voltage-Level Translator Breakout...
€4.76 *
Adafruit ADS1115 16-Bit ADC - 4 Channel with Progrmmable Gain Amplifier Adafruit ADS1115 16-Bit ADC - 4 Channel with...
€16.01 *
Adafruit MPL115A2 - I2C Barometric Pressure/Temperature Sensor Adafruit MPL115A2 - I2C Barometric...
€8.45 *
Adafruit 8-channel Bi-directional Logic Level Converter - TXB0108 Adafruit 8-channel Bi-directional Logic Level...
€8.57 *
Adafruit 4-channel I2C-safe Bi-directional Logic Level Converter - BSS138 Adafruit 4-channel I2C-safe Bi-directional...
€4.22 *
Break Away Female Headers - Swiss Machine Pin Break Away Female Headers - Swiss Machine Pin
€3.00 *
1x40 pin Break Away Headers - Long 1x40 pin Break Away Headers - Long
€1.95 *
1x40 Pin Break Away Headers - Straight 1x40 Pin Break Away Headers - Straight
€0.95 *
Viewed