产品概述
描述
The ST2149B is a 4-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages, VCCand VL, set the logic levels on either side of the device. Its architecture allows bi-directional level translation without a control pin.
The ST2149B accepts VLfrom 1.65 to 3.6 V and VCCfrom VLto 5.5 V, making it ideal for data transfer between low-voltage ASICs/PLD and higher voltage systems. This device has a tri-state output mode which can be used to disable all I/Os.
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所有功能
- 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):
- VLranges from 1.65 to 3.6 V
- VCCranges 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)
