Overview
The ST1G3236DTR is a 1-bit dual supply bus transceiver level translator produced by STMicroelectronics. This device is fabricated using sub-micron silicon gate and five-layer metal wiring C2MOS technology. It is designed for use in mixed supply systems, enabling high-speed operation between different voltage levels such as 3.3V, 2.5V, and 1.2V. The ST1G3236DTR is ideal for two-way asynchronous communication between data buses, with the direction of data transmission controlled by the DIR input.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Propagation Delay Time (tPLH, tPHL) | 4.0 ns (Max.) at TA = 85°C | ns |
| Power Dissipation (ICC) | 5 μA (Max.) at TA = 85°C | μA |
| Operating Voltage Range (VCCA, VCCB) | 1.2V to 3.6V, VCCB ≤ VCCA | V |
| Input Voltage (VI) | 0 to VCCB | V |
| Output Voltage (VO) | 0 to VCCA or VCCB | V |
| Input Leakage Current (II) | ±0.5 μA to ±5 μA | μA |
| Quiescent Supply Current (ICCt) | 0.5 μA to 5 μA | μA |
| ESD Protection | 2 kV Human-body model (JESD22-A114-A) | kV |
| Operating Temperature | -40°C to 85°C | °C |
| Package | DFN6L (1.2x1mm) |
Key Features
- High speed operation with propagation delays as low as 4.0 ns (Max.) at TA = 85°C.
- Low power dissipation with ICCA and ICCB of 5 μA (Max.) at TA = 85°C.
- Balanced propagation delays (tPLH ≅ tPHL).
- Power-down protection on inputs and outputs.
- 26Ω series resistor on A-side outputs.
- ESD protection exceeding 2 kV Human-body model (JESD22-A114-A).
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Directional control via DIR input.
Applications
The ST1G3236DTR is suitable for various applications requiring level translation between different voltage domains, such as:
- Mixed supply systems (e.g., 3.3V/1.2V, 3.3V/2.5V, 2.5V/1.8V).
- Interface between different voltage level buses in embedded systems.
- Communication between microcontrollers and peripherals operating at different voltage levels.
- Industrial control systems requiring voltage level translation.
Q & A
- What is the primary function of the ST1G3236DTR?
The ST1G3236DTR is a 1-bit dual supply bus transceiver level translator designed for high-speed operation between different voltage levels.
- What are the operating voltage ranges for VCCA and VCCB?
VCCA operates from 1.2V to 3.6V, and VCCB operates from 1.2V to VCCA.
- What is the maximum propagation delay time for the ST1G3236DTR?
The maximum propagation delay time (tPLH, tPHL) is 4.0 ns at TA = 85°C.
- Does the ST1G3236DTR have ESD protection?
Yes, it has ESD protection exceeding 2 kV Human-body model (JESD22-A114-A).
- What is the package type of the ST1G3236DTR?
The package type is DFN6L (1.2x1mm).
- What is the purpose of the DIR input?
The DIR input controls the direction of data transmission between the two buses.
- Does the ST1G3236DTR have power-down protection?
Yes, it has power-down protection on inputs and outputs.
- What is the typical quiescent supply current for the ST1G3236DTR?
The typical quiescent supply current (ICCt) is 0.5 μA to 5 μA.
- What are the recommended operating temperatures for the ST1G3236DTR?
The recommended operating temperatures range from -40°C to 85°C.
- Does the ST1G3236DTR have a series resistor on its outputs?
Yes, it has a 26Ω series resistor on the A-side outputs.
