Overview
The TXB0104DRG4, produced by Texas Instruments, is a 4-bit bidirectional voltage-level translator designed for level-translation applications. This device allows for universal low-voltage bidirectional translation between various voltage nodes, making it versatile for interfacing devices or systems operating at different interface voltages. The TXB0104 uses two separate configurable power-supply rails, with the A port tracking VCCA (accepting voltages from 1.2 V to 3.6 V) and the B port tracking VCCB (accepting voltages from 1.65 V to 5.5 V).
Key Specifications
| Parameter | Condition | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| VCCA Range | V | 1.2 | 3.6 | ||
| VCCB Range | V | 1.65 | 5.5 | ||
| Output Enable (OE) Input | Referenced to VCCA | ||||
| Low Power Consumption (ICC) | µA | 5 | |||
| ESD Protection (A Port) | Human-Body Model (A114-B) | V | 2500 | ||
| ESD Protection (B Port) | Human-Body Model (A114-B) | V | ±15 kV | ||
| Data Rate | Mbps | 20 | 100 | ||
| Propagation Delay (tpd) | A to B, B to A | ns | 6.9 | 7.4 | |
| Output Rise and Fall Times | A-port, B-port | ns | 2.1 | 4.2 |
Key Features
- Automatic direction sensing without the need for a direction-control signal.
- Configurable power-supply rails: VCCA (1.2 V to 3.6 V) and VCCB (1.65 V to 5.5 V).
- Low power consumption with a maximum ICC of 5 µA.
- Output enable (OE) input circuit referenced to VCCA.
- High-impedance state during power-up or power-down when OE is tied to GND.
- ESD protection exceeding ±15 kV Human-Body Model (A114-B) and 1500 V Charged-Device Model (C101).
- Support for partial power-down mode operation using IOFF circuitry.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
Applications
- Level-translation applications for interfacing devices or systems operating at different interface voltages.
- Headsets and audio equipment.
- Smartphones and mobile devices.
- Tablets and handheld devices.
- Desktop PCs and other computing systems.
Q & A
- What is the voltage range for the A port of the TXB0104?
The A port of the TXB0104 accepts any supply voltage from 1.2 V to 3.6 V.
- What is the voltage range for the B port of the TXB0104?
The B port of the TXB0104 accepts any supply voltage from 1.65 V to 5.5 V.
- Does the TXB0104 require a direction-control signal?
No, the TXB0104 does not require a direction-control signal due to its automatic direction sensing capability.
- What is the maximum ESD protection for the B port of the TXB0104?
The B port of the TXB0104 has ESD protection exceeding ±15 kV Human-Body Model (A114-B).
- How does the TXB0104 handle power-up and power-down states?
The TXB0104 ensures a high-impedance state during power-up or power-down when the OE input is tied to GND through a pulldown resistor.
- What is the maximum data rate supported by the TXB0104?
The TXB0104 supports a maximum data rate of up to 100 Mbps depending on the operating conditions.
- Does the TXB0104 support partial power-down mode?
- What is the typical output impedance of the TXB0104 during output transition?
- What are some common applications of the TXB0104?
- What is the package type of the TXB0104DRG4?
