> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Fermion: 4-Bit Level Translator (Breakout)

**Type:** Product page · **SKU:** DFR0843 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/fermion-4-bit-level-translator-breakout.html ([markdown](https://core-electronics.com.au/fermion-4-bit-level-translator-breakout.html.md))

After purchasing an open-source product that is not electrical level compatible, you may find that your sensor cannot work normally or even is easy to be damaged...

## Pricing

- **Price:** $6.75 (inc GST) — $6.14 AUD, exc GST
- **Quantity discounts:** 6+ $5.83 (exc GST) · 12+ $5.58 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 19 and Aug 24.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0843:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DFR0843:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

After purchasing an open-source product that is not electrical level compatible, you may find that your sensor cannot work normally or even is easy to be damaged because the level of the sensor and your controller are not compatible. Apart from the poor experience you encountered, this also causes economic losses. In order to solve this problem, DFRobot launched a level conversion module with strong level compatibility and fast signal conversion speed.

This 4-bit non-inverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 3.6 V. VCCA must be less than or equal to VCCB. The B port is designed to track VCCB. VCCB accepts any supply voltage from 2.3 V to 5.5 V. This allows for low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. It can automatically track the power supply voltage and its conversion speed can reach up to 24Mbps in push-pull applications. The module can be used in the level conversion of communication protocols such as I2C, UART, SPI, and OneWire.

![](https://core-electronics.com.au/media/wysiwyg/product_images/DFR0843-Connection-Diagram.jpg)

**Connection Diagram**

### Features

- Low power consumption
- High conversion speed, up to 24Mbps in push-pull applications, up to 2Mbps in open-drain applications
- Bidirectional automatic conversion, no direction control needed

### Specification

- VCCA Voltage Range: 1.65V-3.6V
- VCCB Voltage Range: 2.3V-5.5V
- Conditions of Use: VCCB>VCCA
- Working Current: 15uA
- Support Port: push-pull, open-drain
- Conversion Speed: push-pull 24Mbps(MAX)\\open-drain 2Mbps(MAX)
- Working Temperature Range: -30°C ~ 75°C
- Product Size: 15.5×15mm/0.61×0.59 inches
- Mounting Hole Pitch: 11mm
- Mounting Hole Size: M2.0

### Documents

- [Product Wiki](https://wiki.dfrobot.com/4_Bit_Level_Translator_SKU_DFR0843)

### Parts List

- 4-Bit Level Translator x1
- 2.54 Black Single Row 6Pin x2

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0843.jpg)