ST2149 Overview
The ST2149 is a 4-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages, VCC and VL, set the logic levels on either side of the device. Its architecture allows bi-directional level translation without a control pin.
ST2149 Key Features
- 42 MHz: 84 Mbps (max.) data rate at VL = 1.8 V, VCC = 3.3 V
- Bi-directional level translation without direction control pin
- Wide voltage range (VCC ≥ VL)
- VL ranges from 1.65 to 3.6 V
- VCC ranges from VL to 5.5 V
- Power-down mode feature
- when VCC supply is off, all I/Os are in high impedance
- Totem pole driving
- 5.5 V tolerant enable pin
- ESD performance on all pins: ±2 kV HBM