ETF0102M ETEK Microelectronics ETF0102M – 2-Channel Auto Bidirectional Voltage Level Translator (SOP-8)
ETF0102M is preferred for general-purpose designs with easier assembly, while ETF0102Y is optimized for high-density PCB layouts.
The ETEK Microelectronics ETF0102M is a 2-channel auto-bidirectional voltage level translator IC designed for seamless logic-level conversion between low-voltage and higher-voltage digital systems.
It eliminates the need for a direction control (DIR) pin, making it ideal for simplifying PCB design in mixed-voltage environments such as industrial control, communication systems, and embedded electronics.
The device is optimized for open-drain and push-pull applications and supports high-speed signal translation with low distortion and minimal standby power consumption.
Key Features
- 2-channel auto bidirectional level shifting
- No direction control (DIR) required
- Voltage translation: 0.95V – 3.3V ↔ 1.8V – 5.0V
- 5V tolerant I/O pins for TTL compatibility
- Low RON for reduced signal distortion
- High-speed operation (up to 100 MHz typical in light load conditions)
- Low standby current for power-sensitive applications
- Flow-through pinout for easy PCB routing
- Industrial temperature range: -40°C to +85°C
- SOP-8 (3.9 × 4.9 mm) package
Functional Description
The ETF0102M uses an internal pass-FET architecture that automatically detects logic levels on either side of the circuit. This enables transparent bidirectional communication without external control logic.
It is particularly effective for systems where multiple voltage domains coexist, such as:
- 1.2V/1.8V microcontrollers
- 3.3V digital logic
- 5V legacy peripherals
Applications
- I2C / SMBus / PMBus communication
- UART and GPIO level shifting
- SDIO and MDIO interfaces
- Microcontroller and SoC interconnects
- Industrial automation systems
- Telecom and networking equipment
- Embedded mixed-voltage systems
Package & Ordering Information
| Part Number | Package | MSL | Packing |
|---|---|---|---|
| ETF0102M | SOP-8 (3.9 × 4.9 mm) | 3 | Tape & Reel |
Comparison Note (ETF0102 Series)
| Model | Package | Channel | Key Difference |
|---|---|---|---|
| ETF0102M | SOP-8 | 2-channel | Standard production, larger package |
| ETF0102Y | DFN-8 | 2-channel | Smaller footprint, better for compact PCB designs |
Typical Use Case
In a mixed-voltage system where a 1.8V MCU communicates with a 3.3V or 5V sensor, the ETF0102M automatically translates logic levels in both directions without software or external direction control—reducing BOM cost and simplifying firmware design.
Specification: ETEK Microelectronics ETF0102M – 2-Channel Auto Bidirectional Voltage Level Translator (SOP-8)
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