TXS0104EQPWRQ1 - 4-Bit Auto-Direction Level Translator | TI
Teilenummer: TXS0104EQPWRQ1 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
TXS0104EQPWRQ1 Übersicht
A voltage-level translator (also called a level shifter) is a logic IC that interfaces digital signals between circuits operating at different supply voltages, for example bridging a 1.8V microcontroller to a 5V sensor bus. Translators sit within the broader voltage-translation family of logic ICs, alongside direction-controlled transceivers and unidirectional buffers. The TXS0104E-Q1 belongs to TI's auto-direction TXS family, which requires no host-side direction-control pin.
Key features include auto-direction sensing that eliminates the DIR pin entirely, mixed open-drain and push-pull operation per channel, a wide VCCA range of 1.65V to 3.6V and VCCB range of 2.3V to 5.5V, and a 4 kbps to 24 Mbps data-rate window. An active-high OE pin places all I/O in high-impedance during power-up, enabling partial power-down sequencing.
Architecturally, the TXS family uses a discrete integration approach with on-chip series resistors and one-shot edge accelerators: the resistors form a passive divider/clamp for open-drain buses while one-shots speed up rising edges for push-pull signals. This makes it tolerant of I2C, SMBus, SPI, UART and GPIO mixed-direction traffic but limits DC drive capability (typ. 2 mA sink at 3.3V side), which distinguishes it from the TXB push-pull-only family.
Typical applications include I2C level shifting between 3.3V and 5V domains, automotive infotainment and body-control module GPIO expansion, and mixed-voltage UART/SD-card interfaces. AEC-Q100 qualification suits it for under-hood and cabin electronics.
Design consideration: do not use the TXS family where channels source continuous DC current above 2-3 mA or where extremely low standby current is required; the always-on one-shot architecture draws current on every edge.
This page synthesizes distributor availability, pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in-Alternativen für TXS0104EQPWRQ1 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
TXS0104EPWR
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TXB0104PWR
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TXS0104EQPWRQ1 Grenzwerte & elektrische Eigenschaften
| Translator Type | Voltage Level |
| Channel Type | Bidirectional (auto-direction) |
| Number of Channels | 4 |
| VCCA Supply Range | 1.65 V to 3.6 V |
| VCCB Supply Range | 2.3 V to 5.5 V |
| Maximum Data Rate | 24 Mbps (push-pull); 2 Mbps (open-drain) |
| Minimum Data Rate | 2 kbps (one-shot timeout limit) |
| Ausgangstyp | Open-Drain or Push-Pull (mixed per channel) |
| Output Drive (DC) | approx. 2 mA sink (3.3V side) |
| Betriebstemperatur | -40C to +125C |
| Gehäuse | 14-TSSOP (PW) |
| Montageart | Surface Mount |
| Qualifier | AEC-Q100 qualified (Grade 1) |
| Output Enable | Yes, OE active-high with power-up 3-state |
| RoHS-Status | Compliant |
| Series | TXS0104E-Q1 (Automotive) |
TXS0104EQPWRQ1 Pin-Konfiguration
| Pin 1 | A1 — A-port data channel 1 (1.65V-3.6V domain) |
| Pin 2 | VCCA — A-port supply, 1.65V to 3.6V |
| Pin 3 | OE — Output enable, active high; pull low for 3-state during power-up |
| Pin 4 | A2 — A-port data channel 2 (1.65V-3.6V domain) |
| Pin 5 | GND — Ground |
| Pin 6 | A3 — A-port data channel 3 (1.65V-3.6V domain) |
| Pin 7 | A4 — A-port data channel 4 (1.65V-3.6V domain) |
| Pin 8 | B4 — B-port data channel 4 (2.3V-5.5V domain) |
| Pin 9 | B3 — B-port data channel 3 (2.3V-5.5V domain) |
| Pin 10 | NC — Not connected (per datasheet) |
| Pin 11 | B2 — B-port data channel 2 (2.3V-5.5V domain) |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | B1 — B-port data channel 1 (2.3V-5.5V domain) |
| Pin 14 | VCCB — B-port supply, 2.3V to 5.5V |
Typische Anwendungen
TXS0104EQPWRQ1 ist geeignet für 6 Anwendungs: I2C Level Shifting (3.3V to 5V), Automotive Body Electronics GPIO, UART / Mixed-Voltage Serial Links, Infotainment and Cluster Interfaces, SD Card / Memory Card Interfaces, Industrial Sensor Bus Translation.
I2C Level Shifting (3.3V to 5V)
The TXS0104EQPWRQ1 is a natural fit for I2C level translation because the TXS architecture integrates 10 kOhm series resistors per channel, forming the passive pull-up compatible structure that open-drain I2C requires, while one-shot accelerators sharpen rising edges for up to 2 Mbps operation. Four channels cover SDA/SCL on two separate buses or one bus plus redundant lines. Place external pull-up resistors on both voltage domains, remembering the internal series resistance adds to your pull-up total, which limits sink current to roughly 2 mA at 3.3V. Unlike discrete MOSFET translators, the auto-direction sensing removes any host-side direction control, and the OE pin guarantees both SDA and SCL are high-impedance during power sequencing when OE is pulled low through a resistor.
Empfohlen
Automotive Body Electronics GPIO
Automotive body control modules frequently mix 1.8V or 3.3V microcontroller GPIO with legacy 5V actuator and sensor interfaces; the TXS0104EQPWRQ1 bridges four such channels per package with AEC-Q100 qualification and -40C to +125C operation suited to cabin and under-hood environments. The auto-direction feature means a single device serves mixed transmit/receive lines without a microcontroller-controlled direction pin, simplifying firmware. Because DC sink capability is limited to approximately 2 mA, it is appropriate for logic-status signals, switches, and multiplexed sense lines rather than directly driving lamps or relays. The OE pin, referenced to VCCA, provides a defined high-impedance state during cranking transients and partial power-down, protecting the low-voltage domain from 5V back-drive.
Empfohlen
UART / Mixed-Voltage Serial Links
UART, SPI, and general-purpose serial links between a 1.65V-3.6V processor and 2.3V-5.5V peripherals map cleanly onto the TXS0104EQPWRQ1: TX/RX and handshake lines can be mixed and matched per channel between open-drain and push-pull operation, and data rates up to 24 Mbps cover high-speed SPI. Push-pull channels benefit from the one-shot edge accelerators that compensate the series resistance, preserving rise times on short traces. Design caution: the always-active one-shots consume supply current on every edge, so battery-powered designs should prefer TI's direction-controlled families for very low duty cycles, and keep signal rates above the 2 kbps one-shot timeout floor. The TSSOP-14 footprint lets one part translate all four UART handshaking signals in a single placement.
Empfohlen
Infotainment and Cluster Interfaces
In automotive infotainment head units and instrument clusters, the TXS0104EQPWRQ1 translates control lines between the low-voltage SoC domain and 5V display, tuner, and amplifier modules while meeting AEC-Q100 requirements for the -40C to +125C cabin range. Four independent auto-direction channels handle I2C touch-controller buses, push-pull enable/reset lines, and interrupt signals in one TSSOP-14 package, reducing BOM count versus discrete MOSFET solutions. The mixed open-drain/push-pull capability is decisive here because a single translator serves both bus types without a second device. Designers should verify the one-shot minimum data-rate floor of about 2 kbps for slow housekeeping signals and use the OE pin, tied low through a resistor per the TI datasheet, to guarantee 3-state behavior during power-up sequencing of the dual supply domains.
Empfohlen
SD Card / Memory Card Interfaces
SD memory cards in embedded systems present a mixed-voltage challenge: the card interface uses push-pull CMD and DAT lines at 3.3V while host controllers may run at 1.8V. The TXS0104EQPWRQ1 translates four of these lines simultaneously at up to 24 Mbps, matching the default-speed SD clock budget, with auto-direction eliminating a direction pin on the bidirectional CMD and DAT0 lines. Because TXS channels tolerate both open-drain (card detection during initialization) and push-pull (high-speed transfer) signaling, one device covers the full card bring-up and run-time sequence. Engineers should confirm the host controller can tolerate the approximately 2 mA DC sink limit and capacitively light loads; long flexible cables may require reduced clock rates to preserve the one-shot-assisted edge integrity.
Empfohlen
Industrial Sensor Bus Translation
Industrial controllers and PLC I/O cards routinely bridge 3.3V microcontroller logic to 5V sensor, encoder, and fieldbus transceiver inputs; the TXS0104EQPWRQ1 provides four auto-direction channels in TSSOP-14 with -40C to +125C coverage, making it robust for factory-floor temperature swings even where automotive qualification is not mandatory. Open-drain capability suits bidirectional lines such as SMBus PMBus telemetry and one-wire presence signals, while push-pull channels carry encoder quadrature and SPI at up to 24 Mbps. The OE pin supports hot-swap card insertion by holding all channels high-impedance until both supplies are stable. Note the DC drive limitation of roughly 2 mA: for lines that must source steady current into optocoupler LEDs or long cable loads, use a buffer stage or select a stronger push-pull translator instead.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TXS0104EQPWRQ1 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TXS0104EPWR | TXB0104PWR |
|---|---|---|---|
| Package | TSSOP-14 (PW) | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| AEC-Q100 Qualification | Qualified (automotive) | Not qualified (industrial flow) | Not qualified (industrial flow) |
| Output Architecture | Open-drain or push-pull (mixed) | Open-drain or push-pull (mixed) | Push-pull only |
| VCCA Range | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.2 V to 3.6 V |
| VCCB Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.65 V to 5.5 V |
| Max Data Rate (push-pull) | 24 Mbps | 24 Mbps | 50 Mbps |
| I2C / Open-Drain Support | Yes (up to 2 Mbps) | Yes (up to 2 Mbps) | No |
Wichtigste Unterscheidungsmerkmale
- Automotive AEC-Q100 qualification with -40C to +125C range (vs. TXS0104EPWR)
- Open-drain channel support for I2C/SMBus (vs. TXB0104PWR)
- Auto-direction operation with no DIR pin (vs. TXU0104QPWRQ1)
Designhinweise
VCCA must be present for the OE input circuit to function; per the TI product page, the OE input is supplied by VCCA. Tie OE to GND through a pull-down resistor (minimum value set by the driver's current-sourcing capability) so all I/O stay high-impedance during power-up and power-down. Power VCCA (low voltage) and VCCB independently; both supplies may ramp in any order thanks to the power-up 3-state design, but keep VCCB within 2.3V-5.5V and VCCA within 1.65V-3.6V at all times to avoid clamping faults on the I/O cells.
The TXS one-shot architecture limits continuous DC sink current to roughly 2 mA on the 3.3V side; do not select this family for lines that must source steady current (optocoupler LEDs, LED indicators, or heavily loaded buses). Also remember the minimum data-rate floor of about 2 kbps: very slow or DC-level signals decay because the one-shot edge accelerator times out. Finally, avoid confusing TXU0104QPWRQ1 (pin-to-pin but unidirectional) as a substitute - TI E2E confirmed it is not functionally compatible.
Place 0.1 uF ceramic decoupling capacitors within 2-3 mm of both VCCA (pin 2) and VCCB (pin 14) to GND to support the dynamic one-shot drive currents during edges. Keep A-side and B-side traces short and grouped to minimize coupling between voltage domains, and route the OE trace away from fast switching channels to prevent false enable glitches during transients. The TSSOP-14 thermal pad is not present on this package, so no special thermal copper is required - power dissipation is minimal at logic signal levels.
Compliance-Informationen
AEC-Q100 automotive qualification per TI TXS0104E-Q1 series. RoHS/lead-free status per standard TI automotive flow; REACH and halogen-free status not stated in retrieved data.
