TXB0104W-Q1 - 4-Bit Auto-Direction Level Translator | Texas Instruments
MPN: TXB0104W-Q1 ✓ فعالTXB0104W-Q1 جائزہ
A voltage-level translator is a member of the logic IC family (voltage-level translator -> logic IC -> integrated circuit) that allows two circuit domains operating at different supply voltages to exchange digital signals safely. On mixed-voltage PCBs - for example, a 1.8 V microcontroller talking to a 3.3 V sensor - the translator isolates the rails while preserving logic polarity and timing, preventing overvoltage damage and logic-level misreads.
Key features of the TXB0104W-Q1 include automatic direction sensing that eliminates DIR control pins, push-pull topology optimization delivering 100 Mbps throughput, and a compact 12-pin UQFN footprint of approximately 2 mm x 2 mm that saves board area. The +/-15 kV ESD rating (IEC) on the I/O ports adds robustness in harsh automotive electrical environments. According to TI product data, the device uses two separate configurable power-supply rails; the A port tracks VCCA and the B port tracks VCCB.
Architecturally, the TXB family uses a two-transistor output driver with an integrated one-shot edge-rate accelerator on each side, giving fast transition times for push-pull CMOS signals. This makes it well suited to SPI, UART, and general-purpose push-pull GPIO translation. Note that, as TI applications guidance states, the TXB architecture is not recommended for open-drain buses such as I2C or 1-Wire, where the internal drivers contend with external pull-ups.
Typical applications include automotive body electronics and gateways translating between 1.8 V SoC GPIO and 3.3 V peripherals, infotainment and display module signal interfaces, and industrial control modules requiring AEC-Q100 qualified components.
Design tip: keep VCCA ramps before or after VCCB within datasheet sequencing guidance, and place the two 0.1 uF decoupling capacitors directly at the VCCA and VCCB pins; the auto-direction sensing requires push-pull sources on both sides to function reliably.
This page synthesizes distributor pricing tiers, verified drop-in alternatives from TI cross-reference discussions, and practical design notes not found in the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل TXB0104W-Q1 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں TXB0104W-Q1 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Function, Operating Temperature, Output Type, Package.
TXB0104RUTR
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →TXU0104-Q1
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
TXU0204-Q1
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
TXU0304-Q1
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
TXB0104W-Q1 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| فنکشن | 4-bit bidirectional voltage-level translator with auto direction |
| چینلز | 4 |
| VCCA Supply Range | 1.1 V to 3.6 V |
| VCCB Supply Range | 1.1 V to 3.6 V |
| ڈیٹا ریٹ | 100 Mbps |
| Direction Control | Automatic direction sensing |
| Signal Topology | Push-pull |
| ESD Protection (I/O) | +/-15 kV (IEC air-gap discharge) |
| Automotive Qualification | AEC-Q100 qualified |
| آپریٹنگ درجہ حرارت | -40 C to +125 C |
| پیکیج | 12-pin UQFN (RUT) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Polarity | Non-inverting |
| RoHS اسٹیٹس | Compliant |
| آؤٹ پٹ کی قسم | Push-pull |
TXB0104W-Q1 پن کنفیگریشن
| پن 1 | VCCA — A-port supply voltage, 1.1 V to 3.6 V |
| پن 2 | A1 — A-port data input/output 1 (tracks VCCA) |
| پن 3 | A2 — A-port data input/output 2 (tracks VCCA) |
| پن 4 | A3 — A-port data input/output 3 (tracks VCCA) |
| پن 5 | A4 — A-port data input/output 4 (tracks VCCA) |
| پن 6 | GND — Ground |
| پن 7 | B4 — B-port data input/output 4 (tracks VCCB) |
| پن 8 | B3 — B-port data input/output 3 (tracks VCCB) |
| پن 9 | B2 — B-port data input/output 2 (tracks VCCB) |
| پن 10 | B1 — B-port data input/output 1 (tracks VCCB) |
| پن 11 | OE — Output enable; low three-states all I/Os |
| پن 12 | VCCB — B-port supply voltage, up to 3.6 V |
عام استعمالات
TXB0104W-Q1 کے لیے موزوں ہے 6 ایپلیکیشنs: Automotive Body Electronics and Gateways, Infotainment and Display Interfaces, Battery Management and EV Systems, Industrial Control and PLC I/O Modules, Sensor Interface and Signal Conditioning, Networking and Communication Modules.
Automotive Body Electronics and Gateways
Automotive gateway ECUs routinely bridge 1.8 V microcontroller GPIO banks to 3.3 V sensor and actuator interfaces. The TXB0104W-Q1's extended VCCA range down to 1.1 V covers modern sub-1.8 V core-logic rails, and its AEC-Q100 qualification with -40 C to +125 C operation meets body-electronics environmental requirements. Its automatic direction sensing removes DIR pin firmware management on bidirectional lines such as UART links to telematics modules. With 100 Mbps support, SPI links between a gateway SoC and 3.3 V CAN/LIN transceivers shift without timing margin loss. The +/-15 kV ESD rating adds robustness against automotive load-dump transients coupled onto harness-connected lines, reducing the need for discrete TVS diodes on interior interfaces.
تجویز کردہ
Infotainment and Display Interfaces
Infotainment head units and cluster displays combine low-voltage SoCs with 3.3 V display serializers, touch controllers, and audio codecs. The TXB0104W-Q1 translates SPI and I2S-adjacent push-pull control signals at up to 100 Mbps, comfortably covering 50 MHz+ SPI clock rates to display deserializers. Its 12-pin UQFN (RUT) footprint of roughly 2 mm x 2 mm fits the dense board area behind instrument clusters. AEC-Q100 qualification addresses cabin and near-dashboard temperature extremes (-40 C to +125 C). Designers should note that the TXB push-pull topology is appropriate for I2S clock/data lines (push-pull) but not for open-drain touch-controller interrupt lines, where the TI TXS family is the correct choice per TI application guidance.
تجویز کردہ
Battery Management and EV Systems
EV battery management systems pair low-voltage cell-monitoring MCUs with 3.3 V CAN transceivers, isolation communication, and contactor drivers. The TXB0104W-Q1's wide VCCA range from 1.1 V supports the sub-1.8 V logic found on low-power BMS front ends, while VCCB connects to standard 3.3 V communication domains. Automatic direction sensing simplifies bidirectional UART links to isolated transceivers without additional control firmware. The +/-15 kV IEC ESD robustness and -40 C to +125 C AEC-Q100 operating range address the harsh electrical environment near traction cabling. Because TXB outputs are push-pull, designers must ensure CAN and LIN transceiver RxD/TxD pins driven through the translator are push-pull-compatible, using the TXS family instead where pull-ups dominate the bus topology.
تجویز کردہ
Industrial Control and PLC I/O Modules
Industrial PLC I/O cards mix 1.8 V/2.5 V FPGA or SoC banks with 3.3 V field-side buffers, ADCs, and optocoupler drivers. The TXB0104W-Q1 provides four auto-direction channels that eliminate per-pin direction registers, cutting firmware complexity on bidirectional status/control buses. The 100 Mbps rating supports high-speed parallel fieldbus and encoder interfaces, and the compact UQFN-12 fits high-density I/O card layouts. Although automotive-qualified, AEC-Q100 parts are widely reused in industrial designs for their -40 C to +125 C rating and reliability margin. Designers should decouple both rails with 0.1 uF ceramics placed within 2 mm of pins 1 and 12 and confirm that field-side drivers are push-pull; open-collector sensor inputs should route through the TXS family instead.
تجویز کردہ
Sensor Interface and Signal Conditioning
Precision sensor front ends often run analog and digital sections at different rails - for example, a 1.8 V ADC digital interface connected to a 3.3 V MCU. The TXB0104W-Q1 translates the SPI bus between them at full speed with four channels covering SCLK, MOSI, MISO, and CS in one package. Automatic direction sensing handles the bidirectional MISO/MOSI lines without DIR control. The W variant's 1.1 V minimum VCCA supports the newest low-voltage ADC digital cores. Because the device adds roughly nanosecond-scale propagation delay from its one-shot accelerators, SPI clock rates above 50 MHz should be validated on the actual PCB. Avoid using this part on open-drain ALERT or DRDY lines from sensors; route those through the TXS family or discrete FET shifters.
تجویز کردہ
Networking and Communication Modules
Networking modules - fiber-media converters, industrial Ethernet nodes, and wireless bridges - frequently combine 1.8 V PHY/MAC logic with 3.3 V magnetics-side circuitry, LEDs, and management MCUs. The TXB0104W-Q1 shifts management interfaces (MDIO-adjacent push-pull signals, UART console, status lines) at up to 100 Mbps while the auto-direction feature manages shared bidirectional pins without host intervention. Its +/-15 kV ESD tolerance on I/O gives extra margin on connector-proximate lines such as console ports. The -40 C to +125 C range suits temperature-hardened outdoor telecom enclosures. As with other TXB uses, verify push-pull topology on both sides; MDIO lines with pull-up resistors should instead use the TXS family to avoid drive contention documented in TI E2E forum guidance.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا TXB0104W-Q1 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | TXB0104RUTR | TXU0104-Q1 | TXU0204-Q1 | TXU0304-Q1 | TXB0104QPWRQ1 |
|---|---|---|---|---|---|---|
| Package | 12-pin UQFN (RUT) | 12-pin UQFN (RUT) - same | 12-pin UQFN (RUT) - same | 12-pin UQFN (RUT) - same | 12-pin UQFN (RUT) - same | TSSOP-14 - different footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Automotive Qualification | AEC-Q100 qualified | No (commercial grade) | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified |
| Direction Control | Automatic direction sensing | Automatic direction sensing | Fixed (VCCA to VCCB) | Fixed (2 in / 2 out) | Fixed (3 in / 1 out) | Automatic direction sensing |
| Data Rate | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps |
| Bus Topology Suitability | Push-pull only (not I2C/open-drain) | Push-pull only | Push-pull only | Push-pull only | Push-pull only | Push-pull only |
اہم امتیازی خصوصیات
- Extended low-voltage VCCA range (بمقابلہTXB0104RUTR)
- Automatic direction sensing retained in automotive grade (بمقابلہTXU0104-Q1)
- Same-package trade-off: AEC-Q100 vs footprint (بمقابلہTXB0104QPWRQ1)
ڈیزائن نوٹس
Place 0.1 uF ceramic decoupling capacitors within 2 mm of VCCA (pin 1) and VCCB (pin 12), each with a low-impedance via to the ground plane. The TXB auto-direction scheme uses one-shot edge accelerators that draw fast transient currents; supply droop during edges can cause output glitches or direction chatter. Keep A-side and B-side traces short (<50 mm) to limit reflected-edge retriggering, and avoid stubs on translated nets.
The TXB family is not recommended for open-drain buses such as I2C or 1-Wire - TI E2E forum threads document failed 1-Wire designs because the internal push-pull drivers contend with external pull-ups, corrupting data. Use the TXS0104E family for open-drain buses. Additionally, ensure VCCA ramps with or before VCCB during power-up; if VCCB is applied first, undefined states can occur until VCCA is valid. The OE pin should be held low until both rails are stable.
Estimated: as a CMOS logic translator, power dissipation is dominated by dynamic switching, approximately P = Cpd * f * V * I/O count. At 100 Mbps with 3.3 V swings and ~10 pF loads per channel, dissipation remains in the tens of milliwatts, far below the UQFN-12 package capability; no heatsink or thermal relief is required. However, the small 2 mm x 2 mm UQFN-12 has no exposed pad for heat extraction, so avoid stacking high-current routing under the device footprint.
تعمیل کی معلومات
AEC-Q100 qualified for automotive applications per TI.com product page. RoHS/lead-free status per TI logic device standard; obtain formal certificates from TI quality documentation for the exact orderable suffix.
