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Texas Instruments TXS0102YZPR
- Part No.:
- TXS0102YZPR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
TXS0102YZPR.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:13,114
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Product details
Overview
TXS0102YZPR from Texas Instruments is a 2-bit bidirectional voltage-level translator IC designed for mixed-voltage digital interfacing between 1.65V–3.6V (A port) and 2.3V–5.5V (B port) domains. It supports push-pull operation up to 24Mbps and open-drain I²C/SMBus at 2Mbps, with no direction-control signal required. It enables level translation in compact portable electronics where space-constrained DSBGA packaging and low quiescent current are critical.
For engineers reviewing the TXS0102YZPR datasheet, TXS0102YZPR pinout, TXS0102YZPR application, or TXS0102YZPR equivalent, key selection considerations include its auto-direction-sensing pass-gate architecture, integrated 10kΩ pull-ups on both ports, VCC isolation behavior, absence of power-supply sequencing requirements, and compatibility with I²C, UART, and GPIO interfaces across 1.8V/2.5V/3.3V/5V node combinations.
Technical Context
The TXS0102YZPR implements a dual-channel, directionless pass-gate topology with edge-rate accelerator (one-shot) circuitry per channel to boost rising-edge slew rate-reducing output impedance to ~50–70Ω for ~30ns during transitions. Its gate bias is set ~1 VT above the lower VCC rail, enabling automatic bidirectional conduction without control logic.
Each channel includes internal 10kΩ pull-up resistors referenced to its respective supply (VCCA for A-port, VCCB for B-port), eliminating external components in open-drain applications. The OE input controls global high-impedance state entry/exit with 200ns enable/disable timing, and VCC isolation ensures both ports enter Hi-Z if either VCCA or VCCB is at GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| A-port voltage range | 1.65V to 3.6V - supports 1.8V and 2.5V logic domains while tracking VCCA |
| B-port voltage range | 2.3V to 5.5V - interfaces directly with 3.3V and 5V peripherals without external level-shifting |
| Max data rate (push-pull) | 24Mbps - enables high-speed GPIO or UART bridging between voltage domains |
| Max data rate (open-drain) | 2Mbps - meets standard-mode I²C timing requirements with integrated pull-ups |
| Propagation delay (B→A, push-pull) | 2.5ns typical at VCCA=3.3V/VCCB=5V - ensures minimal latency in time-critical bidirectional paths |
| Output skew (tsk) | 0.7ns max - guarantees tight timing alignment between the two channels for synchronized data transfer |
| Quiescent supply current | 14.4µA typical (ICCA + ICCB) - reduces system standby power in battery-powered devices |
Pinout & Package
The TXS0102YZPR uses an 8-pin DSBGA (Die Size Ball Grid Array) package measuring 1.9mm × 0.9mm, optimized for ultra-compact PCB layouts in space-constrained portable and wearable systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1, A2 | I/O (A-port) | Bidirectional data pins referenced to VCCA; auto-sense direction and translate 1.65–3.6V logic |
| B1, B2 | I/O (B-port) | Bidirectional data pins referenced to VCCB; translate 2.3–5.5V logic with integrated 10kΩ pull-ups |
| GND | Ground | Common reference for both ports; required for proper pass-gate biasing and ESD path |
| OE | Input (active-high) | Global output-enable control; drives all I/Os into high-impedance when low (no external pulldown needed) |
| VCCA | Power (A-port) | Supplies A-port logic and internal circuitry; must be ≤ VCCB per design constraint |
| VCCB | Power (B-port) | Supplies B-port logic and internal pull-ups; sets high-side voltage domain and output drive strength |
Key Features
| Feature | Design Value |
|---|---|
| No direction-control signal | Eliminates need for dedicated GPIO or timing-critical control lines, simplifying firmware and PCB routing |
| VCC isolation | Automatic Hi-Z on both ports if either VCCA or VCCB drops to GND-prevents back-powering and bus contention during partial power-down |
| No power-supply sequencing | Either VCCA or VCCB may ramp first-removes boot-order dependencies in multi-rail systems |
| Ioff support | Enables true partial-power-down mode: leakage < ±2µA per port when unpowered, preserving system sleep integrity |
| Integrated 10kΩ pull-ups | Removes four external resistors in I²C designs-reduces BOM count, board area, and layout complexity |
Applications
| I²C Bus Bridging | UART Voltage Translation |
|---|---|
Use Scenario: Connecting a 1.8V microcontroller I²C master to a 3.3V sensor slave in a wearables platform. IC Role / Device Role / Timing Role: Bidirectional level translator handling SDA/SCL signals with automatic direction sensing and integrated pull-ups. Use Value: Eliminates external pull-up resistors and direction-control logic, reducing component count by ≥4 and PCB footprint by >1.5mm². | Use Scenario: Interfacing a 2.5V SoC UART TX/RX to a 5V industrial modem in a smart meter design. IC Role / Device Role / Timing Role: Asymmetric voltage translator supporting full-duplex 3Mbps UART with sub-3ns propagation delay asymmetry. Use Value: Maintains signal integrity across voltage domains without timing skew-induced framing errors or retransmissions. |
| GPIO Expansion Interface | Hot-Swappable Peripheral Adapter |
Use Scenario: Extending 3.3V FPGA GPIO to control 5V actuators in an IoT gateway while preserving logic thresholds. IC Role / Device Role / Timing Role: Push-pull-capable bidirectional translator enabling fast, deterministic GPIO toggling with 24Mbps capability. Use Value: Delivers <3ns propagation delay and 0.7ns inter-channel skew-critical for synchronous peripheral strobing and timing-critical control. | Use Scenario: Enabling hot-plug detection and safe insertion of 1.8V camera modules into a 3.3V host system. IC Role / Device Role / Timing Role: Level translator with VCC isolation and Ioff-ensures Hi-Z state on both ports during insertion/removal to prevent bus glitches. Use Value: Prevents back-driving and latch-up during connector mating, meeting IEC 61000-4-2 Level 4 ESD robustness (8kV HBM on B-port). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0104YZPR | 4-channel version in same YZP package; identical electrical specs per channel but higher total ICC (22µA typ) | Supports 4-line buses (e.g., I²C + GPIO pair); requires more PCB area only if extra channels unused | Select when future expansion or additional signal pairs are anticipated-pin-compatible upgrade path with no layout change |
| PCA9306DCUR | 2-channel translator with separate DIR pin; no integrated pull-ups; 1.2–3.6V A-port / 1.8–5.5V B-port; 2Mbps max (open-drain only) | Requires external pull-ups and direction control; lower ESD rating (4kV HBM B-port); lacks VCC isolation | Choose only if strict cost sensitivity outweighs design simplicity-adds ≥2 passives and firmware overhead |
Compared with TXS0102YZPR, TXS0104YZPR offers scalable channel count in identical form factor, while PCA9306DCUR trades integration for lower unit cost but increases BOM, layout, and firmware complexity-making TXS0102YZPR optimal for space- and power-constrained dual-signal bridges.
Availability
TXS0102YZPR is available at Aetrix Electronics and suitable for I²C bus bridging, UART interface translation, and GPIO expansion applications requiring stable component supply, consistent DSBGA packaging, and guaranteed long-term industrial temperature support (–40°C to +85°C).
Supply support for TXS0102YZPR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of leadership in interface solutions and power-efficient signal conditioning.
The TXS0102YZPR belongs to TI's Switch-type voltage translator family, engineered specifically for seamless, directionless interoperability between heterogeneous voltage domains in portable, industrial, and automotive subsystems.
FAQ
What is the maximum recommended capacitive load for TXS0102YZPR in open-drain mode?
The TXS0102YZPR one-shot edge accelerator has a fixed ~30ns activation window. To ensure full rail-to-rail rise-time acceleration without premature timeout, TI recommends keeping total lumped load capacitance ≤ 30pF per channel-including PCB trace, connector, and device pin capacitance. Exceeding this may cause incomplete rising edges, increased VOL, or bus contention due to O.S. retriggering. TXS0102YZPR datasheet Section 7.3.3 specifies this limit based on characterization under 50Ω driver conditions.
Does TXS0102YZPR support 1.2V logic on the A port?
No. TXS0102YZPR explicitly specifies a minimum A-port operating voltage of 1.65V per Section 5.3 Recommended Operating Conditions. Attempting 1.2V operation violates absolute maximum ratings and risks failure to recognize logic-high inputs, incorrect pass-gate biasing, and undefined translation behavior. For 1.2V interfaces, TI recommends the TXS0108E or SN74AVC4T245 families instead.
Can TXS0102YZPR be used with mismatched VCCA and VCCB voltages such as VCCA = 3.3V and VCCB = 2.5V?
No. The TXS0102YZPR datasheet mandates VCCA ≤ VCCB in Section 5.3 and Figure 7-1 architecture description. Setting VCCA = 3.3V and VCCB = 2.5V violates this constraint and disables proper gate-bias generation, resulting in degraded VOL, increased propagation delay, and potential bus contention. Valid combinations include VCCA=1.8V/VCCB=2.5V, VCCA=2.5V/VCCB=3.3V, or VCCA=3.3V/VCCB=5.0V.
Is the OE pin of TXS0102YZPR 5V-tolerant when VCCA = 1.8V?
Yes. The OE pin is referenced to VCCA and accepts VIH ≥ VCCA × 0.65 and VIL ≤ VCCA × 0.35 per Section 5.3. With VCCA = 1.8V, VIH(min) = 1.17V and VIL(max) = 0.63V-so a 5V OE signal would exceed absolute maximum input voltage (–0.5V to VCCA + 0.5V = –0.5V to 2.3V) and risk permanent damage. OE must be driven from the VCCA domain or level-shifted accordingly.
How does TXS0102YZPR handle simultaneous signal transitions on both A and B ports?
TXS0102YZPR's pass-gate architecture allows independent, concurrent bidirectional operation per channel. However, Section 7.3.2 warns that applying opposing transitions before the one-shot circuit times out (~30ns) may cause transient contention and elevated dynamic ICC. Designers must ensure minimum pulse width (tw ≥ 20ns for push-pull, ≥500ns for open-drain) per Section 5.9 to avoid this. TXS0102YZPR does not arbitrate or serialize conflicting transitions-it relies on system-level timing discipline.
TXS0102YZPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1.65 V ~ 3.6 V
- Voltage - VCCB:
- 2.3 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- 24Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFBGA, DSBGA
TXS0102YZPR FAQ
1.How can I place an order for TXS0102YZPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TXS0102YZPR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TXS0102YZPR reliable?
The price and inventory of TXS0102YZPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TXS0102YZPR is usually 5 days.
3.What payment methods are accepted for TXS0102YZPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TXS0102YZPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TXS0102YZPR?
TXS0102YZPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TXS0102YZPR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TXS0102YZPR?
For technical support, including TXS0102YZPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TXS0102YZPR requirements.
6.How does Aetrix verify that TXS0102YZPR is sourced from the original manufacturer or authorized distributors?
All TXS0102YZPR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TXS0102YZPR meets industry standards.
7.What is the process for return or replacement of TXS0102YZPR?
All TXS0102YZPR units undergo pre-shipment inspection (PSI). If there is an issue with TXS0102YZPR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TXS0102YZPR part is unused and in its original packaging.
Return procedure for TXS0102YZPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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