Overview
The ST2G3236QTR, produced by STMicroelectronics, is a 2-bit dual supply bus transceiver and level translator designed for use in mixed voltage systems. This CMOS device is fabricated using sub-micron silicon gate and five-layer metal wiring technology, ensuring high-speed operation and low power dissipation. It is intended for two-way asynchronous communication between data buses operating at different voltage levels, such as 3.3 V, 2.5 V, and 1.8 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range (VCCA) | 1.4 to 3.6 | V |
| Operating Voltage Range (VCCB) | 1.4 to 3.6 | V |
| Propagation Delay (tPD) | 6.2 ns (max) at TA = 85 °C | ns |
| Power Dissipation (ICCA, ICCB) | 5 µA (max) at TA = 85 °C | µA |
| Output Current (IOHA, IOLA) | 7 mA min at VCCA = 2.75 V; VCCB = 1.65 V or 2.3 V | mA |
| Output Current (IOHB, IOLB) | 2 mA min at VCCA = 2.3 V or 3.0 V; VCCB = 1.65 V | mA |
| Data Rates | Up to 380 Mbps (1.8 V to 3.3 V translation) | Mbps |
| ESD Performance | HBM > 2 kV (MIL STD 883 method 3015) | kV |
| Package Type | QFN10 (1.8 mm x 1.4 mm) | |
| Operating Temperature | -40 to +85 °C | °C |
Key Features
- High speed operation with propagation delays as low as 6.2 ns.
- Low power dissipation with ICCA and ICCB of 5 µA (max) at TA = 85 °C.
- Symmetrical output impedance and balanced propagation delays.
- Power-down protection on inputs and outputs.
- 26 Ω series resistor on the A side.
- High ESD immunity (HBM > 2 kV).
- Latch-up performance exceeds 500 mA (JESD17).
- Supports data rates up to 380 Mbps for 1.8 V to 3.3 V translation.
Applications
The ST2G3236QTR is suitable for various applications requiring voltage translation between different voltage domains, such as:
- Mixed voltage systems (e.g., 3.3 V, 2.5 V, 1.8 V).
- Interface between different voltage level buses.
- UART applications where voltage translation is necessary.
- General-purpose logic level translation in digital systems.
Q & A
- What is the primary function of the ST2G3236QTR?
The ST2G3236QTR is a 2-bit dual supply bus transceiver and level translator designed for voltage translation between different voltage level buses. - What are the operating voltage ranges for VCCA and VCCB?
The operating voltage ranges are 1.4 to 3.6 V for both VCCA and VCCB. - What is the maximum propagation delay of the ST2G3236QTR?
The maximum propagation delay is 6.2 ns at TA = 85 °C. - How much power does the ST2G3236QTR dissipate?
The power dissipation is 5 µA (max) at TA = 85 °C for both ICCA and ICCB. - What is the ESD performance of the ST2G3236QTR?
The ESD performance is HBM > 2 kV (MIL STD 883 method 3015). - What package type is the ST2G3236QTR available in?
The ST2G3236QTR is available in a QFN10 package (1.8 mm x 1.4 mm). - What are the supported data rates for the ST2G3236QTR?
The device supports data rates up to 380 Mbps for 1.8 V to 3.3 V translation. - How does the ST2G3236QTR protect against static discharge?
The device has protection circuits to protect against static discharge, providing 2 kV of ESD immunity. - What is the recommended power-up sequence for the ST2G3236QTR?
Apply power to either VCC, then to the OE input and data inputs, followed by the other VCC. Finally, drive the OE input LOW to enable the device. - What is the purpose of the 26 Ω series resistor on the A side?
The 26 Ω series resistor on the A side helps in managing the output impedance and ensuring stable operation.
