STMicroelectronics ST2189
The ST2189 is an 8-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Its architecture allows bidirectional level translation without a control pin. The ST2189 accepts VCCA from 1.65 V to 3.6 V and VCCB from 1.65 V to 3.6 V, making it ideal for data transfer between low-voltage ASICs/PLD and higher voltage systems.| Part No. | ST2189 |
|---|---|
| Datasheet | ST2189 Download |
| Manufacturer |  STMicroelectronics |
| Description | 8-bit dual supply level translator |
| Buy | Stock & Price |
FEATURES
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● 46 MHz: 92 Mbps data transfer when VCCA = 3.6 V Bidirectional level translation without direction control pin Wide voltage range of 1.65 V to 3.6 V for both VCCA and VCCB Configurable voltage translation: – VCCA can be ≥ VCCB or VCCA can be ≤VCCB Partial power down support - when VCCB is grounded, all the outputs will automatically go to high impedance. Low quiescent current (5 µA) ESD performance: – ±4 kV HBM (human body model) QFN20 (1.8 x 3.2 mm)
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DESCRIPTION
Externally applied voltages, VCCB and VCCA, set the logic levels on either side of the device. This device has a tristate output mode which can be used to disable all I/Os. In power down mode feature - when VCCB supply is grounded, all I/Os go to high impedance automatically, with very low quiescent current on VCCA supply.APPLICATIONS
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● Low voltage system level translation Mobile phones Other mobile devices Table 1. Device summary Order code ST2189QTR Package QFN20 (3.2 x 1.8 mm) Packing Tape and reel August 2009 Doc ID 15918 Rev 1 1/21 21 Pin settings ST2189 1 1.1 Pin settings Pin connection Figure 1.
