ST2149B

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 ■ Small package and footprint QFN12 (1.7 x 2.0 mm) Applications ■ Low-voltage system level translation ■ Mobile phones and other mobile devices Datasheet −production data QFN12 (1.7 x 2.0 mm) Table 1. Device summary Order code Package Packing Package topmark ST2149BQTR QFN12 (1.7 x 2.0 mm) Tape and reel (3000 parts per reel) 49A June 2012 This is information on a product in full production. Doc ID 023310 Rev 1 1/23 www.st.com 1 Contents Contents ST2149B 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Device block diagrams . . . . . . . . . . . . . . . . . . . . ....