ST2129B is a 2-bit dual supply level translator without direction control pin, push-pull output launched by ST. This product has 45MHz: 90Mbps (max.) data rate at VL = 1.8 V, VCC = 3.3 V, bi-directional level translation without direction control pin, wide voltage range (VL ≤ VCC): VL ranges from 1.65 to 3.6 V, VCC ranges from VL to 5.5 V, totem pole driving, 5.5 V tolerant Enable pin, ESD performance on all pins: ±2 kV HBM, small package and footprint QFN8 1.4 x 1.2 x 0.55 mm and other features.