MS4554N/MS4554N1 is a bidirectional level converter, can be used in mixed voltage digital signal system. It is powered by two independent frame power supply, the A-end supply voltage range is 1.65V to 5.5V, the B-end supply voltage range is 2.3V to 5.5V. It can be used in logic signal conversion systems with supply voltages of 1.8V, 2.5V, 3.3V and 5V. When the OE terminal is low, all IO ports are in high impedance state, which significantly reduces static power consumption. When the VCCA is powered on, a pull-down current source is integrated inside the OE terminal. To ensure that the port remains high resistive during power up or down, the OE terminal should be grounded through a pull-down resistor whose resistance value is determined by the ability to drive the current source.
The MS4554N is in QFN14 package, and the MS4554N1 is in QFN12 package, and the operating temperature range is -40°C to +125°C.
- • No directional control signal required
- • Data rate: 10Mbps in push-pull mode, 2Mbps in open-drain mode
- • Voltage range from 1.65V to 5.5V at terminal A
- Terminal B voltage range 2.3V to 5.5V (VCCA≤VCCB)
- • VCC isolation: If either power supply is pulled to ground, the port is in a high resistance state
- • No power-on sequence requirement
- • Supports power down mode