Datasheet ST2149 Equivalent ( PDF ) - Translator

ST2149 4-bit dual supply level translator without direction control pin 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

ST2149B 4-bit dual supply level translator without direction control pin Features - 45 MHz: 90 Mbps (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 1.65 to 5.5 V - Totem-pole driving - 5.5 V tolerant enable pin - ESD performance on all pins: ±2 kV HBM -