Ruimeng Technology launches the MS4561-2VA: a 35Mbps dual-channel auto-bidirectional level translator. Port A supports a wide voltage range of 1.65V to 5.5V, and Port B supports 2.3V to 5.5V. It requires no direction control signal, providing a cost-effective level translation solution for mixed-voltage systems.
Product Highlights
01 Auto-Bidirectional Translation, No Direction Control Required
The MS4561-2VA utilizes a pass-gate architecture and monostable edge accelerators to automatically identify the data transmission direction, eliminating the need for additional direction control pins. This feature significantly simplifies system design in bidirectional communication scenarios such as I²C and GPIO, saving MCU IO resources.
02 High-Speed Data Transmission
It supports data rates up to 35Mbps in push-pull mode and 2Mbps in open-drain mode, meeting the level translation requirements of high-speed signal interfaces such as UART and SPI. The chip integrates internal 10kΩ pull-up resistors, eliminating the need for external pull-up resistors and further simplifying the peripheral circuit.
03 Wide Voltage Compatibility, Covering Mainstream Logic Levels
Port A operates from 1.65V to 5.5V, and Port B operates from 2.3V to 5.5V (VCCA ≤ VCCB). It is perfectly compatible with 1.8V, 2.5V, 3.3V, and 5V logic systems. A single chip can cover a variety of voltage translation scenarios.
04 Ultra-Low Quiescent Current, Ideal for Low-Power Designs
The typical quiescent current is only 10µA. Compared to the four-channel version in the same series (MS4561-4, 25µA), it has lower power consumption, making it particularly suitable for battery-powered portable devices and IoT terminals.
05 Flexible Power Management, Multiple Protection Mechanisms
No power-up sequencing control is required, simplifying system design. The OE pin integrates an internal pull-down current source. When OE is low, all IO ports enter a high-impedance state, reducing quiescent power consumption. VCC isolation technology ensures that when either power supply is pulled to ground, the ports automatically present a high-impedance state, preventing current backflow from damaging downstream circuits.
Technical Specifications
| Key Parameters | Performance Indicators |
|---|---|
| Bit Count (Bit) | 2 |
| Direction | Bidirectional |
| Output Mode | Push-Pull / Open-Drain |
| Maximum Data Rate (Mbps) | Push-Pull Mode: 35
Open-Drain Mode: 2 |
| Port A Input Voltage Range (V) | 1.65 - 5.5 |
| Port B Input Voltage Range (V) | 2.3 - 5.5 |
| Quiescent Current (µA) | 10 |
| Applications | I²C, SMBUS, UART, GPIO |
| Package | VSSOP8 |
Note: The MS4561-4 in the same series provides a 4-channel version (quiescent current 25µA), suitable for multi-channel level translation scenarios. Please refer to the latest datasheet for specific parameters.
Application Scenarios
Industrial Automation
The MS4561-2VA is suitable for level translation between industrial sensors, actuators, and other devices. Its reliable electrical characteristics and excellent anti-interference capability ensure stable operation in complex industrial environments, meeting the strict requirements of industrial equipment for signal integrity.
Communication and Network Equipment
In communication and network equipment, the MS4561-2VA provides a smooth communication bridge between chipsets of different voltage levels, supporting stable and reliable data exchange for the equipment.
With features such as auto-bidirectional translation, 35Mbps high-speed transmission, 10µA ultra-low power consumption, and wide voltage compatibility, the MS4561-2VA provides a cost-effective level translation solution for applications such as industrial automation, communication equipment, and professional audio.
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