My Inquiry
My Account
Texas Instruments TXU0204PWR
- Part No.:
- TXU0204PWR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
TXU0204PWR.pdf
- Description:
- IC TRANSLATOR UNIDIR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,265
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TXU0204PWR from Texas Instruments is a 4-bit fixed-direction voltage-level translator IC with Schmitt-trigger inputs and 3-state outputs, supporting dual-rail operation from 1.1 V to 5.5 V per port, up to 200 Mbps (3.3 V → 5.0 V), and operating across –40°C to +125°C. It enables reliable bidirectional level shifting in mixed-voltage I/O interfaces such as UART, SPI, and JTAG.
For engineers reviewing the TXU0204PWR datasheet, TXU0204PWR pinout, TXU0204PWR application, or TXU0204PWR equivalent, key selection criteria include its VCCA/VCCB dual-supply flexibility, integrated static pull-downs preventing floating inputs, Ioff-float isolation for partial power-down, Schmitt-trigger noise immunity, and TSSOP-14 package compatibility with TXB-family footprints.
Technical Context
The TXU0204PWR implements fixed-direction translation between two independent voltage domains: A-port pins (A1–A4Y) reference VCCA, B-port pins (B1Y–B4) reference VCCB, and OE can be driven from either supply rail. Data flows unidirectionally-A-to-B or B-to-A-depending on OE logic state and port configuration.
Its Schmitt-trigger inputs provide hysteresis (ΔVT = 0.2–1.18 V depending on VCCI) to reject slow edges and noise, while integrated weak pulldown resistors ensure defined logic states during input float. The Ioff-float feature disables all outputs and places them in high-impedance when either VCCA or VCCB drops below 100 mV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range (VCCA / VCCB) | 1.1 V to 5.5 V each - supports wide mixed-voltage system interconnect (e.g., 1.2 V MCU ↔ 3.3 V peripheral). |
| Max Data Rate | 200 Mbps (3.3 V → 5.0 V) - suitable for high-speed UART, SPI, and JTAG clock domains. |
| Input Hysteresis (ΔVT) | 0.2–1.18 V (VCCI-dependent) - rejects noise and accommodates slow-rise signals like mechanical switch debouncing. |
| Output Drive Strength | ±12 mA at 4.5 V - drives LEDs, buffers, or moderate-capacitance buses without external drivers. |
| Quiescent Current | 2.5 µA max at 25°C - enables ultra-low-power operation in battery-backed or always-on subsystems. |
| Operating Temperature | –40°C to +125°C - qualified for automotive under-hood, industrial control, and harsh-environment applications. |
| Ioff-float Support | Active when VCC < 100 mV - prevents backfeeding and enables safe partial power-down in multi-rail systems. |
Pinout & Package
TSSOP-14 package (5.00 mm × 4.40 mm), 14-pin surface-mount with exposed thermal pad (recommended grounded). Pin 1 = A1, Pin 14 = VCCB, Pin 7 = GND, Pin 8 = OE.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1–A2 | Input (VCCA-referenced) | Accepts 1.1–5.5 V logic signals from A-side domain; Schmitt-triggered for noise immunity. |
| A3Y–A4Y | Output (VCCA-referenced) | 3-state outputs driven by B-side data when direction is A←B; high-impedance when OE = low. |
| B1Y–B2Y | Output (VCCB-referenced) | 3-state outputs driven by A-side data when direction is A→B; enabled only when OE = high. |
| B3–B4 | Input (VCCB-referenced) | Accepts 1.1–5.5 V logic from B-side; includes internal pulldown to prevent floating. |
| OE | Control Input | Active-high enable referenced to VCCA or VCCB - allows flexible control rail selection without level-shifting OE. |
| VCCA / VCCB | Power Supply | Independent rails support asymmetric voltage translation (e.g., 1.8 V ↔ 5.0 V); each regulates its respective I/O domain. |
| GND | Ground Reference | Common return path for both domains; thermal pad (Pin 14 side) improves thermal performance and EMI suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail translation | Independent 1.1–5.5 V operation on A and B ports enables interoperability between legacy and modern low-voltage logic families. |
| Schmitt-trigger inputs | Hysteresis (0.2–1.18 V) eliminates false triggering from noisy or slow-switching sources like switches or sensors. |
| Integrated input pulldowns | Prevents undefined logic states on unused or disconnected inputs - eliminates need for external bias resistors. |
| Ioff-float isolation | Automatically disables outputs and isolates ports when either supply is absent - critical for hot-swap and power sequencing safety. |
| Pinout compatibility | Matches TXB0104 footprint - allows drop-in replacement in existing designs without PCB rework. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing a 1.8 V microcontroller GPIO to a 5 V analog sensor output with long trace runs susceptible to EMI. IC Role / Device Role / Timing Role: Unidirectional A→B level shifter translating MCU command signals to 5 V sensor enable lines, using Schmitt-trigger inputs to suppress coupling noise. Use Value: Eliminates external RC filters and pull-up networks while ensuring clean, glitch-free enable timing across temperature extremes. | Use Scenario: Connecting a 3.3 V CAN transceiver's status pins to a 5 V body controller MCU for fault reporting. IC Role / Device Role / Timing Role: Bidirectional level translator (B→A for status, A→B for reset) with OE controlled from 3.3 V rail to coordinate power sequencing. Use Value: Enables direct logic-level interoperability without voltage dividers or discrete FETs, reducing BOM count and board space. |
| IoT Edge Node Power Management | Programmable Logic I/O Expansion |
Use Scenario: Level-shifting between a 1.2 V FPGA I/O bank and 3.3 V PMIC control lines (EN, PGOOD) in an energy-constrained edge device. IC Role / Device Role / Timing Role: Fixed-direction translator with Ioff-float enabling safe shutdown of PMIC while FPGA remains active; OE tied to FPGA VCCA. Use Value: Prevents back-current leakage during partial power-down, extending battery life and meeting ASIL-B functional safety requirements. | Use Scenario: Expanding a CPLD's 1.5 V I/O capability to drive legacy 5 V TTL peripherals (e.g., LED arrays, relays) via parallel bus. IC Role / Device Role / Timing Role: High-drive (±12 mA) translator buffering 4-bit data/control lines; Schmitt inputs tolerate marginal signal integrity on long traces. Use Value: Delivers rail-to-rail output swing and robust noise margin - avoids timing violations and latch-up in high-noise factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0104RGER | Same pinout, but lacks Schmitt-trigger inputs and Ioff-float; lower drive (±8 mA); no integrated pulldowns. | Not suitable for noisy or floating-input scenarios; requires external biasing and cannot safely isolate powered-down rails. | Select TXU0204PWR when noise immunity, partial power-down, or floating-input robustness is required. |
| TXU0104PWR | Identical architecture and features, but all four channels fixed A→B (no mixed-direction capability like TXU0204's A1/A2/B3/B4 configuration). | Cannot support bidirectional use cases (e.g., shared bus with direction control); limited to GPIO expansion where direction is static. | Choose TXU0204PWR when mixed-direction I/O (e.g., SPI MISO/MOSI on same device) is needed within one package. |
Compared with TXB0104RGER, TXU0204PWR adds Schmitt-trigger noise rejection and Ioff-float safety; compared with TXU0104PWR, it provides flexible channel assignment for true bidirectional protocols without requiring two devices.
Availability
TXU0204PWR is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, IoT edge node power management, and programmable logic I/O expansion requiring stable component supply and long-term lifecycle assurance.
Supply support for TXU0204PWR 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 solutions, with over 90 years of innovation in high-reliability components.
The TXU0x04 family was designed specifically for robust, low-power, mixed-voltage I/O bridging in space-constrained industrial and automotive systems - emphasizing noise immunity, rail independence, and safe power sequencing.
FAQ
What is the maximum supported data rate for TXU0204PWR in a 3.3 V to 5.0 V up-translation configuration?
The TXU0204PWR supports up to 200 Mbps in 3.3 V to 5.0 V up-translation mode, as specified in the switching characteristics table under "TMAX – Maximum Data Rate" for VCCI = 3.0–3.6 V and VCCO = 4.5–5.5 V at –40°C to +125°C. This makes TXU0204PWR suitable for high-speed UART, SPI, and JTAG applications where timing margins are tight.
Does TXU0204PWR require external pull-up or pull-down resistors on its input pins?
No, TXU0204PWR does not require external pull-up or pull-down resistors on its input pins (A1, A2, B3, B4, OE). Each input includes an integrated static pulldown resistor that ensures a defined low state when left unconnected - eliminating external components and simplifying layout for TXU0204PWR-based designs.
Can TXU0204PWR translate signals bidirectionally between two voltage domains?
TXU0204PWR performs fixed-direction translation, but supports bidirectional system-level communication by assigning different channels to opposite directions: A1/A2 → B1Y/B2Y (A→B) and B3/B4 → A3Y/A4Y (B→A). This enables full-duplex protocols like SPI on a single TXU0204PWR device without external direction control logic.
How does the Ioff-float feature function in TXU0204PWR during partial power-down?
When either VCCA or VCCB falls below ~100 mV, the Ioff-float feature in TXU0204PWR automatically disables all outputs and places them in high-impedance state - preventing current backflow and signal contention. This behavior is intrinsic to TXU0204PWR's design and requires no external circuitry or configuration.
Is TXU0204PWR pin-compatible with the TXB0104 family?
Yes, TXU0204PWR is pin-compatible with the TXB0104 family in TSSOP-14 packaging, as confirmed in the device documentation. This allows direct PCB-level replacement of TXB0104 devices with TXU0204PWR to add Schmitt-trigger inputs, Ioff-float, and higher drive strength without layout changes.
TXU0204PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 4
- Voltage - VCCA:
- 1.08 V ~ 5.5 V
- Voltage - VCCB:
- 1.08 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State
- Data Rate:
- 200Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP (0.173", 4.40mm Width)
TXU0204PWR FAQ
1.How can I place an order for TXU0204PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TXU0204PWR 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 TXU0204PWR reliable?
The price and inventory of TXU0204PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TXU0204PWR is usually 5 days.
3.What payment methods are accepted for TXU0204PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TXU0204PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TXU0204PWR?
TXU0204PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TXU0204PWR 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 TXU0204PWR?
For technical support, including TXU0204PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TXU0204PWR requirements.
6.How does Aetrix verify that TXU0204PWR is sourced from the original manufacturer or authorized distributors?
All TXU0204PWR 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 TXU0204PWR meets industry standards.
7.What is the process for return or replacement of TXU0204PWR?
All TXU0204PWR units undergo pre-shipment inspection (PSI). If there is an issue with TXU0204PWR, 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 TXU0204PWR part is unused and in its original packaging.
Return procedure for TXU0204PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TXU0204PWR Tags
-
74LVC1T45GW,125
Nexperia USA Inc.
-
74LVCH2T45DC,125
Nexperia USA Inc.
-
SN74LVC1T45DBVR
Texas Instruments
-
SN74LVC1T45DRLR
Texas Instruments
-
SN74LVC1T45DPKR
Texas Instruments
-
SN74LVC2T45DCTR
Texas Instruments
-
74LVC2T45GT,115
Nexperia USA Inc.
-
SN74LVC1T45YZPR
Texas Instruments
-
LSF0102DCUR
Texas Instruments
-
SN74LVC1T45DCKR
Texas Instruments
-
TXS0102DCTR
Texas Instruments
-
FXLP34P5X
onsemi
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
