Overview
The TXS0104EPWR, produced by Texas Instruments, is a 4-bit non-inverting bidirectional voltage-level translator. This device is designed to facilitate low-voltage translation between different voltage nodes, such as 1.8 V, 2.5 V, 3.3 V, and 5 V. It features two separate configurable power-supply rails, allowing for flexible voltage translation without the need for a direction-control signal. The A port operates with supply voltages from 1.65 V to 3.6 V, while the B port operates with supply voltages from 2.3 V to 5.5 V. This makes the TXS0104EPWR highly versatile for various electronic systems requiring voltage level shifting.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCCA) | 1.65 to 3.6 | V |
| Supply Voltage (VCCB) | 2.3 to 5.5 | V |
| Maximum Data Rate (Push-Pull) | 24 | Mbps |
| Maximum Data Rate (Open Drain) | 2 | Mbps |
| Propagation Delay Time (A-to-B, Push-Pull) | 4.6 to 5.8 | ns |
| Propagation Delay Time (A-to-B, Open Drain) | 2.9 to 10 | ns |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | TSSOP (14 pins) | |
| Package Size | 5 mm × 4.4 mm |
Key Features
- No direction-control signal needed for data flow.
- Maximum data rates of 24 Mbps for push-pull and 2 Mbps for open-drain configurations.
- Available in various packages, including TSSOP, SOIC, BGA, VQFN, and DSBGA.
- No power-supply sequencing required; VCCA or VCCB can be ramped first.
- Latch-up performance exceeds 100 mA per JESD 78, class II.
- ESD protection exceeds JESD 22 standards, including 2000-V Human-Body Model and 15-kV Human-Body Model for A and B ports, respectively.
- IEC 61000-4-2 ESD protection with ±8-kV contact discharge and ±10-kV air-gap discharge.
- Internal 10-kΩ pullup resistors to VCCA and VCCB for each I/O.
- Output one-shots to accelerate low-to-high transitions.
Applications
- Handsets
- Smartphones
- Tablets
- Desktop PCs
- Other electronic systems requiring bidirectional voltage-level translation.
Q & A
- What is the primary function of the TXS0104EPWR?
The TXS0104EPWR is a 4-bit non-inverting bidirectional voltage-level translator designed to translate signals between different voltage levels without needing a direction-control signal.
- What are the operating voltage ranges for the A and B ports?
The A port operates with supply voltages from 1.65 V to 3.6 V, and the B port operates with supply voltages from 2.3 V to 5.5 V.
- What are the maximum data rates supported by the TXS0104EPWR?
The device supports maximum data rates of 24 Mbps for push-pull configurations and 2 Mbps for open-drain configurations.
- What types of ESD protection does the TXS0104EPWR offer?
The device offers ESD protection exceeding JESD 22 standards, including 2000-V Human-Body Model for the A port and 15-kV Human-Body Model for the B port, as well as IEC 61000-4-2 ESD protection.
- What is the purpose of the internal 10-kΩ pullup resistors?
The internal 10-kΩ pullup resistors are connected to VCCA and VCCB for each I/O, eliminating the need for external resistors in open-drain applications.
- How does the output-enable (OE) input function?
When the OE input is low, all outputs are placed in the high-impedance state. The OE input circuit is supplied by VCCA.
- What are the package options available for the TXS0104EPWR?
The device is available in various packages, including TSSOP, SOIC, BGA, VQFN, and DSBGA.
- What is the operating temperature range of the TXS0104EPWR?
The device operates over a temperature range of -40°C to 85°C.
- Does the TXS0104EPWR require power-supply sequencing?
No, the TXS0104EPWR does not require power-supply sequencing; VCCA or VCCB can be ramped first.
- What is the significance of the one-shot circuits in the TXS0104EPWR?
The one-shot circuits detect rising edges on the A or B ports and turn on the PMOS transistors for a short duration to speed up the low-to-high transition.
