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ST2349 Arkusz danych(PDF) 1 Page - STMicroelectronics |
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1 / 23 page November 2007 Rev 3 1/23 23 ST2349 4-bit dual supply level translator without direction control pin Features ■ 45 Mbps (max) data rate when driven by a totem pole driver ■ 4 Mbps (max) data rate when driven by an open drain pole driver ■ Bi-directional level translation without direction control pin ■ Wide VL voltage range of 1.65 to 3.6 V ■ Wide VCC voltage range of 1.80 to 5.5 V ■ Power down mode feature – when either supply is off, all I/Os are in high impedance ■ Low quiescent current (max 24 µA) ■ Able to be driven by totem pole and open drain drivers ■ 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 ■ I2C level translation ■ UART level translation Description The ST2349 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. It utilizes transmission gate-based design that allows bi- directional level translation without a control pin. The ST2349 accepts a VL from 1.65 to 3.6 V and VCC from 1.80 to 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. The ST2349 supports power down mode when VCC is grounded/floating and the device is disabled via the OE pin. QFN16L (2.6 x 1.8 mm) Table 1. Device summary Order code Package Packaging ST2349QTR QFN16 (2.6 x 1.8 mm) Tape & reel (3000 parts per reel) www.st.com |
Podobny numer części - ST2349 |
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Podobny opis - ST2349 |
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