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ST2149 - 4-bit dual supply level translator

General Description

The ST2149 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, VCC and VL, set the logic levels on either side of the device.

Key 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 driving.
  • 5.5 V tolerant enable pin.
  • ESD performance on all pins: ±2 kV HBM.
  • Small package and footprint QFN16 (2.6 x 1.8 mm) package.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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 driving ■ 5.5 V tolerant enable pin ■ ESD performance on all pins: ±2 kV HBM ■ Small package and footprint QFN16 (2.6 x 1.8 mm) package Applications ■ Low-voltage system level translation ■ Mobile phones and other mobile devices Description The ST2149 is a 4-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system.