ST2129BQTR STMicroelectronics

ST2129B 2-bit dual supply level translator without direction control pin, push- pull output Datasheet - production data ESD performance on all pins: 2 kV HBM Small package and footprint QFN8 1.4 x 1.2 x 0.55 mm Applications Low-voltage system level translation Mobile phones and other mobile devices Description QFN8 (1.4 x 1.2 x 0.55 mm) The ST2129B device is a 2-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages, V and V CC L, Features set the logic levels on either side of the device. Its architecture allows bi-directional level 45 MHz: 90 Mbps (max.) data rate translation without a control pin. at V = 1.8 V, V = 3.3 V L CC Bi-directional level translation without direction The ST2129B device accepts V from 1.65 to L control pin 3.6 V and V from V to 5.5 V, making it ideal for CC L data transfer between low-voltage ASICs/PLD Wide voltage range (V V ): L CC and higher voltage systems. This device has V ranges from 1.65 to 3.6 V L a tristate output mode which can be used to V ranges from V to 5.5 V CC L disable all I/Os. Totem pole driving 5.5 V tolerant Enable pin Table 1. Device summary Order code Package Packing Package topmark ST2129BQTR QFN8 (1.4 x 1.2 x 0.55 mm) Tape and reel (3000 parts per reel) 1A February 2013 DocID023308 Rev 2 1/21 This is information on a product in full production. www.st.com 1Contents ST2129B Contents 1 Pin settings 5 1.1 Pin connection 5 1.2 Pin description 5 2 Logic diagram 6 Device block diagrams 6 3 Supplementary notes 8 3.1 Driver requirement . 8 3.2 Load driving capability 8 3.3 Truth table . 8 4 Maximum ratings 9 Recommended operating conditions . 9 5 Electrical characteristics 10 5.1 DC characteristics 10 5.2 AC characteristics 12 6 Test circuit 15 7 Package mechanical data 17 8 Revision history . 20 2/21 DocID023308 Rev 2