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Texas Instruments 1P1G125QDCKRG4Q1
- Part No.:
- 1P1G125QDCKRG4Q1
- Manufacturer:
- Texas Instruments
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
1P1G125QDCKRG4Q1.pdf
- Description:
- IC BUF NON-INVERT 5.5V SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:12,359
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Product details
Overview
1P1G125QDCKRG4Q1 from Texas Instruments is a single-channel 3-state bus buffer gate designed for automotive signal conditioning and level translation. It operates from 1.65V to 5.5V VCC, supports 5.5V-tolerant inputs, delivers ±24mA output drive at 3.3V, achieves 3.7ns max propagation delay, and features Ioff for live insertion in partial-power-down systems-used in CAN/LIN interface signal redriving and ECU sensor bus isolation.
For engineers reviewing the 1P1G125QDCKRG4Q1 datasheet, 1P1G125QDCKRG4Q1 pinout, 1P1G125QDCKRG4Q1 application, or 1P1G125QDCKRG4Q1 equivalent, key selection criteria include its SC70-5 automotive-grade packaging, 3.3V/5V dual-rail compatibility, 100MHz square-wave redriving capability, and AEC-Q100 Grade 1 qualification for under-hood electronics.
Technical Context
The 1P1G125QDCKRG4Q1 implements a noninverting buffer with active-low 3-state output enable (OE), performing Y = A logic. Its CMOS design enables voltage down-translation: 5.5V inputs are safely accepted while output swings are referenced to VCC (1.65–5.5V), enabling interoperability between mixed-voltage domains.
It integrates Ioff circuitry that disables all I/O paths when VCC = 0V, preventing back-drive current and supporting hot-plug operation. Thermal performance is characterized by RθJA = 371°C/W (SC70), and it meets AEC-Q100-002 HBM ±2000V and CDM ±1000V ESD requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65V to 5.5V - Enables direct interface with 1.8V, 2.5V, 3.3V, and 5V logic families without level shifters. |
| Input Voltage Tolerance | Up to 5.5V - Allows connection to higher-voltage buses (e.g., 5V microcontroller GPIO) while powered from lower VCC. |
| tpd (Max) | 3.7ns at 3.3V - Supports clean redriving of digital signals up to 100MHz without timing violation in high-speed control loops. |
| IOH/IOL | ±24mA at 3.3V - Drives multiple loads (e.g., 2–3 downstream gates or LED segments) without external buffering. |
| Ioff | <±10μA at VCC = 0V - Ensures zero-current backflow during power sequencing, critical for fault-tolerant automotive module integration. |
| Operating Temperature | –40°C to +125°C - Qualified per AEC-Q100 Grade 1 for engine control units, body controllers, and ADAS sensor interfaces. |
| ICC (Max) | 10μA - Minimizes quiescent current in always-on vehicle networks (e.g., LIN standby mode). |
Pinout & Package
1P1G125QDCKRG4Q1 uses the SC70-5 (DCK) package: 2.00mm × 1.25mm body, 0.65mm pitch, 5-pin surface-mount configuration with exposed pad not present. Pin 1 is located in Quadrant Q3 per tape-and-reel orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable input | Drives output Y to high-impedance state when high; must be pulled up to VCC via resistor during power-up to avoid floating state. |
| 2 (A) | Buffer input | Noninverting data input accepting 0–5.5V; compatible with legacy 5V logic even when VCC = 1.8V. |
| 3 (GND) | Ground reference | Primary return path for all internal logic and output currents; requires low-inductance connection to PCB ground plane. |
| 4 (Y) | 3-state buffered output | Delivers rail-to-rail CMOS output swing (0 to VCC) with ±24mA drive; high-Z state isolates downstream circuits during disable. |
| 5 (VCC) | Positive supply | Power rail for internal logic and output stage; requires local 0.1μF ceramic bypass capacitor placed within 2mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C) - Validated for use in powertrain, chassis, and safety-critical ECUs without derating. |
| Voltage translation | 5.5V-tolerant inputs + VCC-referenced outputs - Eliminates need for discrete level translators in mixed-supply systems (e.g., 5V sensor → 3.3V MCU). |
| Live insertion support | Ioff leakage <±10μA at VCC = 0V - Enables safe replacement of modules while system remains partially powered (e.g., gateway node upgrades). |
| Low dynamic power | Cpd = 19pF (enabled), 2pF (disabled) at 3.3V - Reduces switching noise and supply ripple in noise-sensitive analog/digital co-location layouts. |
| High-speed timing | 3.7ns max tpd at 3.3V - Meets setup/hold margins for 100MHz clock distribution and serial bus redriving (e.g., SPI, UART, LIN). |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Isolating and redriving LIN bus signals between door module microcontrollers and centralized gateway. IC Role / Device Role / Timing Role: 3-state buffer enabling/disabling LIN transceiver TX path while maintaining bus integrity during sleep/wake transitions. Use Value: Prevents bus contention during multi-node arbitration and reduces EMI via controlled edge rates (10ns/V input slew limit). |
Use Scenario: Level-shifting analog sensor ADC reference signals from 5V precision references to 3.3V SAR ADC inputs in PLC I/O modules. IC Role / Device Role / Timing Role: Voltage-tolerant buffer isolating reference voltage rail from noisy digital switching domains. Use Value: Maintains <10μV reference error via low ICC (10μA) and high PSRR (>60dB at 1MHz) across full temperature range. |
| Automotive Infotainment Display Driver | Automotive Powertrain Communication Hub |
Use Scenario: Driving backlight enable lines for multi-segment LED displays in instrument clusters with variable dimming PWM. IC Role / Device Role / Timing Role: High-current (±24mA) buffer amplifying low-drive MCU GPIO to directly sink/source LED strings. Use Value: Eliminates external MOSFET stage, reducing BOM count and layout area while sustaining 100kHz PWM fidelity. |
Use Scenario: Redriving CAN FD arbitration field signals between two CAN controllers sharing a common physical bus segment. IC Role / Device Role / Timing Role: Low-skew (≤0.5ns inter-channel mismatch) buffer ensuring bit-level timing alignment across redundant communication paths. Use Value: Guarantees <1ns cumulative jitter accumulation over 2m cable runs, meeting ISO 11898-2 timing compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DRYRQ1 | SON-6 package (1.45mm × 1.00mm); includes NC pin; RθJA = 439°C/W vs. 371°C/W for SC70 | Better thermal resistance margin for high-density automotive PCBs; requires different footprint and stencil design | Select when board space is constrained and thermal headroom >15°C is required at 50mA continuous load. |
| SN74LVC1G125DBVRQ1 | SOT-23-5 package (2.90mm × 1.60mm); larger footprint; RθJA = 357.1°C/W; same electrical specs | Easier manual rework and automated optical inspection; preferred for prototyping and low-volume production | Select for development platforms or where mechanical robustness and solder joint reliability outweigh size constraints. |
Compared with SN74LVC1G125DBVRQ1 and SN74LVC1G125DRYRQ1, the 1P1G125QDCKRG4Q1 offers optimal balance of miniaturization (SC70), thermal performance (371°C/W), and process maturity (NIPDAU finish, MSL-1), making it the default choice for volume automotive production targeting IPC Class 3 reliability.
Availability
1P1G125QDCKRG4Q1 is available at Aetrix Electronics and suitable for automotive body control, industrial sensor interface, infotainment display driver, and powertrain communication hub applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1P1G125QDCKRG4Q1 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 automotive ICs, with over 50 years of automotive qualification expertise and AEC-Q100-compliant manufacturing.
The SN74LVC1G125-Q1 product line delivers single-gate logic solutions optimized for automotive signal integrity, featuring Ioff, wide VCC range, and AEC-Q100 Grade 1 qualification for under-hood and cabin electronics.
FAQ
What is the maximum operating frequency supported by the 1P1G125QDCKRG4Q1?
The 1P1G125QDCKRG4Q1 supports reliable redriving of square-wave signals up to 100MHz, validated by its 3.7ns maximum propagation delay at 3.3V and 50pF load. This performance holds across the full –40°C to +125°C operating range, making the 1P1G125QDCKRG4Q1 suitable for high-speed automotive serial buses including LIN, SENT, and low-speed CAN variants.
Does the 1P1G125QDCKRG4Q1 support level translation between 5V and 3.3V logic domains?
Yes, the 1P1G125QDCKRG4Q1 supports bidirectional voltage translation: its inputs tolerate up to 5.5V regardless of VCC, while its output swings from 0V to VCC. When powered from 3.3V, it accepts 5V inputs and produces 3.3V-compatible outputs-enabling direct interfacing between legacy 5V peripherals and modern 3.3V microcontrollers without external translators.
How does the Ioff feature of the 1P1G125QDCKRG4Q1 protect the system during partial power-down?
The Ioff circuitry in the 1P1G125QDCKRG4Q1 disables all I/O paths when VCC = 0V, limiting leakage current to <±10μA. This prevents damaging back-drive current from live signal lines into unpowered sections of the system-critical for automotive modules undergoing independent power cycling, such as gateway nodes updating firmware while other ECUs remain active.
What is the recommended bypass capacitor for the VCC pin of the 1P1G125QDCKRG4Q1?
A 0.1μF X7R ceramic capacitor is recommended for the VCC pin of the 1P1G125QDCKRG4Q1, placed within 2mm of the pin with minimal trace inductance. For systems with high-frequency noise or multiple supply rails, paralleling with a 1μF capacitor improves broadband decoupling-ensuring stable operation during fast output transitions and meeting AEC-Q100 EMC requirements.
Is the 1P1G125QDCKRG4Q1 pin-compatible with other members of the SN74LVC1G125-Q1 family?
No-the 1P1G125QDCKRG4Q1 (SC70-5) has a different pinout and footprint than SN74LVC1G125DRYRQ1 (SON-6, includes NC pin) and CLVC1G125QDBVRQ1 (SOT-23-5). While all share identical logic function and electrical specifications, mechanical incompatibility requires separate PCB layouts; no pin-to-pin or drop-in replacement exists across these packages.
1P1G125QDCKRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
1P1G125QDCKRG4Q1 FAQ
1.How can I place an order for 1P1G125QDCKRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1P1G125QDCKRG4Q1 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 1P1G125QDCKRG4Q1 reliable?
The price and inventory of 1P1G125QDCKRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1P1G125QDCKRG4Q1 is usually 5 days.
3.What payment methods are accepted for 1P1G125QDCKRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1P1G125QDCKRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1P1G125QDCKRG4Q1?
1P1G125QDCKRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1P1G125QDCKRG4Q1 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 1P1G125QDCKRG4Q1?
For technical support, including 1P1G125QDCKRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1P1G125QDCKRG4Q1 requirements.
6.How does Aetrix verify that 1P1G125QDCKRG4Q1 is sourced from the original manufacturer or authorized distributors?
All 1P1G125QDCKRG4Q1 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 1P1G125QDCKRG4Q1 meets industry standards.
7.What is the process for return or replacement of 1P1G125QDCKRG4Q1?
All 1P1G125QDCKRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with 1P1G125QDCKRG4Q1, 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 1P1G125QDCKRG4Q1 part is unused and in its original packaging.
Return procedure for 1P1G125QDCKRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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