Model No: TXB0102DCUR
Texas Instruments TXB0102DCUR
Manufacturer: Texas Instruments
SEMICON NO.: TXB0102DCUR
Package: 8-VSSOP
Stock: In stock
Description: Non-inverting Translator 2Bit 100Mbps
SEMICON NO.: TXB0102DCUR
Package: 8-VSSOP
Stock: In stock
Description: Non-inverting Translator 2Bit 100Mbps
Quantity :
| Mfr | Texas Instruments |
| Device Type | 2-Bit Bidirectional Voltage-Level Translator |
| Power Supply | A Port: 1.2 V to 3.6 V, B Port: 1.65 V to 5.5 V |
| Supply Voltage Nodes Supported | 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V |
| Data Rate (Max) | 100 Mbps |
| Propagation Delay (Typ) | 4 ns (Max) |
| Turn-On Delay Time (Typ) | 31 ns |
| Output Type | Tri-State, Non-Inverted |
| Channels per Circuit | 2 |
| Channel Type | Bidirectional (Auto-Direction Sensing) |
| Operating Temperature | -40°C to +85°C |
| Package | 8-VSSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The TXB0102DCUR is a 2-bit noninverting bidirectional voltage-level translator with automatic direction sensing and ±15-kV ESD protection, manufactured by Texas Instruments in an 8-pin VSSOP package (2.30 mm × 2.00 mm, tape-and-reel packing). It uses two independent configurable power-supply rails: the A port tracks VCCA (1.2 V to 3.6 V) and the B port tracks VCCB (1.65 V to 5.5 V, with VCCA ≤ VCCB), enabling universal low-voltage translation among 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V logic nodes without any direction-control signal.
Highlights & Features
● The TXB0102DCUR integrates several key advantages that make it a preferred choice for mixed-voltage system designs:
● Auto direction sensing: Each I/O pin detects the active driver side automatically, eliminating the need for a DIR control pin and simplifying board layout.
● Wide dual-rail voltage range: A port accepts 1.2 V–3.6 V, B port accepts 1.65 V–5.5 V, covering all common low-voltage logic nodes with VCCA ≤ VCCB constraint.
±15-kV ESD protection: The B port exceeds JESD 22 HBM Class 3B (±15 kV), ensuring robust protection against electrostatic discharge in handheld and portable equipment.
● Low power consumption: Maximum ICC of only 4 μA, suitable for battery-powered devices.
● VCC isolation feature: If either VCC input is at GND, all outputs enter the high-impedance state, preventing current backflow during partial power-down (Ioff support).
● Fast data transfer: Supports data rates up to 20 Mbps across voltage combinations, with typical propagation delays in the nanosecond range.
Frequently Asked Questions
Q: Does the TXB0102DCUR require pullup resistors on its I/O pins?
No, pullup resistors are not recommended on TXB0102 I/O pins; the device uses a push-pull architecture with one-shot edge acceleration. If pullups are needed for open-drain buses (I2C), use the TXS0102 or similar TXS-type parts instead.
Q: Is it suitable for I2C open-drain translation?
Not directly; TXB-series devices are optimized for push-pull signals. For open-drain protocols, TI recommends TXS-series translators such as TXS0102.
Alternative level translator Models
1. TXB0104DCTR: 4-bit version with the same auto-direction sensing architecture, doubling the channel count for wider parallel buses.
2. TXB0108EPW: 8-bit bidirectional translator with similar dual-rail voltage support for high-density data buses.
3. SN74AVC2T245RSVR: 2-bit dual-supply bus transceiver with direction control, suited for applications requiring explicit DIR management.
4. PCA9306DCUR: Dual-bit bidirectional switch specifically designed for I2C/SMBus voltage translation in 1.8 V–5 V systems.
Highlights & Features
● The TXB0102DCUR integrates several key advantages that make it a preferred choice for mixed-voltage system designs:
● Auto direction sensing: Each I/O pin detects the active driver side automatically, eliminating the need for a DIR control pin and simplifying board layout.
● Wide dual-rail voltage range: A port accepts 1.2 V–3.6 V, B port accepts 1.65 V–5.5 V, covering all common low-voltage logic nodes with VCCA ≤ VCCB constraint.
±15-kV ESD protection: The B port exceeds JESD 22 HBM Class 3B (±15 kV), ensuring robust protection against electrostatic discharge in handheld and portable equipment.
● Low power consumption: Maximum ICC of only 4 μA, suitable for battery-powered devices.
● VCC isolation feature: If either VCC input is at GND, all outputs enter the high-impedance state, preventing current backflow during partial power-down (Ioff support).
● Fast data transfer: Supports data rates up to 20 Mbps across voltage combinations, with typical propagation delays in the nanosecond range.
Frequently Asked Questions
Q: Does the TXB0102DCUR require pullup resistors on its I/O pins?
No, pullup resistors are not recommended on TXB0102 I/O pins; the device uses a push-pull architecture with one-shot edge acceleration. If pullups are needed for open-drain buses (I2C), use the TXS0102 or similar TXS-type parts instead.
Q: Is it suitable for I2C open-drain translation?
Not directly; TXB-series devices are optimized for push-pull signals. For open-drain protocols, TI recommends TXS-series translators such as TXS0102.
Alternative level translator Models
1. TXB0104DCTR: 4-bit version with the same auto-direction sensing architecture, doubling the channel count for wider parallel buses.
2. TXB0108EPW: 8-bit bidirectional translator with similar dual-rail voltage support for high-density data buses.
3. SN74AVC2T245RSVR: 2-bit dual-supply bus transceiver with direction control, suited for applications requiring explicit DIR management.
4. PCA9306DCUR: Dual-bit bidirectional switch specifically designed for I2C/SMBus voltage translation in 1.8 V–5 V systems.
