The ST2329 is a ST 2-bit dual supply level translator with bidirectional level translation without direction control pin. It can be used for data transfer between low-voltage ASICs/PLD and higher voltage systems.
This datasheet covers the STMicroelectronics ST2329, a 2-bit dual supply level translator that shifts logic levels between two externally applied supply voltages, VL and VCC, so data can be transferred in a multi-voltage system. It uses a transmission gate-based design that allows bidirectional level translation without a control pin, and it has a tri-state output mode that can disable all I/Os through the OE pin.
The document gives the pin connection and pin description, block and application diagrams, supplementary notes on driver requirements, load driving capability and the power off feature, a truth table, maximum ratings and recommended operating conditions, DC and AC electrical characteristics, waveforms, package mechanical data for the QFN10L (1.8 x 1.4 mm) package, and a revision history.
| Data rate (totem pole driver) | 90 Mbps (max) |
|---|---|
| Data rate (open drain driver) | 8 Mbps (max) |
| VL supply voltage range | 1.65 to 3.6 V |
| VCC supply voltage range | 1.80 to 5.5 V |
| Quiescent current | 12 µA max |
| Package | QFN10L (1.8 x 1.4 mm) |
| ESD performance | ±2 kV HBM on all pins |
| Operating temperature | -40 to 85 °C |
| Order code | ST2329QTR, tape and reel (3000 parts per reel) |
No. The ST2329 provides bidirectional level translation without a direction control pin, using a transmission gate-based design.
It supports a maximum data rate of 90 Mbps when driven by a totem pole driver and 8 Mbps when driven by an open drain driver.
VL can range from 1.65 to 3.6 V and VCC from 1.80 to 5.5 V.
The device has a power down mode: when either supply is off, all I/Os are in high impedance.