Overview
The TXBN0304RSVR, produced by Texas Instruments, is a 4-bit bidirectional level-shifter/voltage translator designed for interfacing devices or systems operating at different interface voltages. This device features automatic direction sensing, eliminating the need for a direction-control signal. It supports fully symmetric supply voltages ranging from 0.9 V to 3.6 V on both A and B ports, making it versatile for various voltage translation applications.
The TXBN0304RSVR is particularly useful in scenarios where devices with different voltage requirements need to communicate. It ensures low power consumption and supports partial-power-down mode operation, making it suitable for a wide range of applications including personal electronics, industrial, enterprise, and telecom sectors.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCCA (Supply voltage) | -0.5 | 4.6 | V |
| VCCB (Supply voltage) | -0.5 | 4.6 | V |
| VI (Input voltage) A port | -0.5 | 4.6 | V |
| VI (Input voltage) B port | -0.5 | 4.6 | V |
| TA (Operating free-air temperature) | -40 | 85 | °C |
| Data rate (CL = 15 pF, VCCA = VCCB = 0.9 V to 3.6 V) | 50 | - | Mbps |
| Data rate (CL = 15 pF, VCCA = VCCB = 1.2 V to 3.6 V) | 100 | - | Mbps |
| Data rate (CL = 15 pF, VCCA = VCCB = 1.8 V to 3.6 V) | 140 | - | Mbps |
| ICC (Low power consumption) | - | 5 | μA |
| Package | - | RSV UQFN (16), RUT UQFN (12) | - |
| Body Size (Nom) | - | 2.60 mm × 1.80 mm (RSV), 2.00 mm × 1.70 mm (RUT) | - |
Key Features
- Fully symmetric supply voltages, 0.9 V to 3.6 V on both A and B ports.
- VCC isolation feature – if either VCC input is at GND, all outputs are in high-impedance state.
- OE input circuit referenced to VCCA (active low for TXBN0304).
- Low power consumption, 5 μA max (ICCA or ICCB).
- Ioff supports partial-power-down mode operation.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- ESD protection exceeds JESD 22 – 8000-V Human-Body Model (A114-B) and 1000-V Charged-Device Model (C101).
Applications
- Personal Electronics
- Industrial
- Enterprise
- Telecom
The TXBN0304RSVR is suitable for any application requiring level translation between different voltage domains, such as interfacing devices with different supply voltages in mixed-voltage systems.
Q & A
- What is the primary function of the TXBN0304RSVR?
The primary function is to act as a 4-bit bidirectional level-shifter/voltage translator for interfacing devices or systems operating at different interface voltages.
- What is the voltage range supported by the TXBN0304RSVR?
The device supports fully symmetric supply voltages ranging from 0.9 V to 3.6 V on both A and B ports.
- How does the OE input work on the TXBN0304RSVR?
The OE input is active low, meaning that when OE is low, all outputs are placed in the high-impedance state.
- What is the maximum data rate supported by the TXBN0304RSVR?
The data rate can be up to 140 Mbps for VCCA and VCCB ranging from 1.8 V to 3.6 V with a load capacitance of 15 pF.
- What kind of ESD protection does the TXBN0304RSVR offer?
The device offers ESD protection exceeding JESD 22 – 8000-V Human-Body Model (A114-B) and 1000-V Charged-Device Model (C101).
- Can the TXBN0304RSVR be used in partial-power-down mode?
Yes, the device supports partial-power-down mode operation using Ioff circuitry.
- What are the recommended values for external pull-up or pull-down resistors?
External pull-up or pull-down resistors should be larger than 20 kΩ to ensure they do not contend with the output drivers.
- What are the typical applications of the TXBN0304RSVR?
Typical applications include personal electronics, industrial, enterprise, and telecom sectors.
- What is the thermal resistance of the TXBN0304RSVR in RUT and RSV packages?
The junction-to-ambient thermal resistance (RθJA) is 116.4°C/W for RUT and 131.7°C/W for RSV packages.
- How does the device handle latch-up performance?
The device's latch-up performance exceeds 100 mA per JESD 78, Class II.
