ST2129B是ST公司推出的一款2-bit dual supply level translator without direction control pin, push-pull output,该产品具有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等特点。