My Inquiry
My Account
Texas Instruments SN74AHC1G125DRLR
- Part No.:
- SN74AHC1G125DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-553
- Datasheet:
-
SN74AHC1G125DRLR.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SOT5
- Quantity:
- Payment:
- Shipping:
Inventory:16,791
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AHC1G125DRLR from Texas Instruments is a single 3-state bus buffer gate optimized for level translation and low-noise bus driving in space-constrained applications. It operates from 2 V to 5.5 V, delivers ±8 mA output drive at 5 V, achieves 6 ns max propagation delay (tpd), and consumes ≤10 µA ICC - enabling use in portable projectors, patient monitoring systems, and industrial motor control I/O interfaces.
For engineers reviewing the SN74AHC1G125DRLR datasheet, SN74AHC1G125DRLR pinout, SN74AHC1G125DRLR application, or SN74AHC1G125DRLR equivalent, key selection criteria include its SOT-553 (DRL) 5-pin package, 3-state enable-controlled output behavior, voltage-tolerant inputs up to 5.5 V, and guaranteed operation across –40°C to +125°C.
Technical Context
The SN74AHC1G125DRLR implements a noninverting CMOS buffer with active-low 3-state output control: when OE is low, A is passed to Y; when OE is high, Y enters high-impedance state. Its input structure accepts voltages up to 5.5 V regardless of VCC, supporting down-translation from 5-V logic to lower-voltage domains.
Designed for low-ringing bus interfacing, it features controlled edge rates (20 ns/V at 5 V) and balanced drive strength (±8 mA at 5 V), minimizing overshoot/undershoot on light loads. Thermal performance is characterized for its DRL package with RθJA = 328.7°C/W and junction-to-board RθJB = 150.3°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 5.5 V - supports mixed-voltage system interfacing and battery-powered operation down to 2 V. |
| Max Propagation Delay | 6 ns at VCC = 5 V, CL = 15 pF - ensures timing-critical signal buffering in high-speed digital subsystems. |
| Output Drive Strength | ±8 mA at VCC = 5 V - sufficient to drive multiple CMOS loads or moderate PCB traces without external buffering. |
| Quiescent Supply Current | ≤10 µA - enables ultra-low-power standby states in always-on monitoring or IoT edge nodes. |
| Input Voltage Tolerance | Up to 5.5 V independent of VCC - allows safe interfacing with 5-V peripherals while operating at 3.3 V or 2.5 V. |
| Operating Temperature | –40°C to +125°C - qualified for industrial motor controls and medical equipment with extended thermal envelopes. |
| ESD Rating (HBM) | ±1500 V - meets standard handling requirements for automated assembly and field-replaceable modules. |
Pinout & Package
SOT-553 (DRL) 5-pin plastic small-outline package: 1.6 mm × 1.6 mm body size, 0.6 mm max height, lead pitch 0.5 mm, RoHS-compliant NIPDAUAG finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OE | Active-low output enable input | Drives Y into high-impedance when high; ties to VCC via pullup for power-up safety. |
| 2 - A | Buffer input | Accepts logic signals up to 5.5 V regardless of VCC; no level-shifting circuitry required. |
| 3 - GND | Ground reference | Return path for all internal logic and output current; must be low-impedance for noise immunity. |
| 4 - Y | 3-state noninverting output | Drives true A signal when OE is low; presents >100 kΩ impedance when OE is high. |
| 5 - VCC | Power supply | Supplies core logic and output drivers; requires local 0.1 µF bypass capacitor per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (2–5.5 V) | Enables direct integration into 2.5 V, 3.3 V, and 5 V systems without external regulators or translators. |
| 5.5-V tolerant inputs | Eliminates need for external clamping diodes or resistive dividers when interfacing legacy 5-V logic. |
| Low 6 ns tpd at 5 V | Supports sub-100 MHz clock domain bridging and real-time data path buffering in compact designs. |
| Controlled edge rate (20 ns/V) | Reduces EMI and signal integrity issues on unterminated traces in cost-sensitive consumer electronics. |
| High-impedance output disable | Allows safe bus sharing among multiple drivers without contention or shoot-through current risks. |
Applications
| Projector Control Interface | Patient Monitoring Signal Routing |
|---|---|
Use Scenario: Isolating and buffering display timing signals between FPGA video controller and LCD driver IC in portable DLP projectors. IC Role / Device Role / Timing Role: Noninverting 3-state buffer enabling dynamic bus arbitration between multiple timing sources. Use Value: Prevents signal contention during mode switching while maintaining <6 ns skew across RGB data lanes. | Use Scenario: Routing sensor interface signals (ECG, SpO₂) from analog front-end to microcontroller ADC in Class II medical devices. IC Role / Device Role / Timing Role: Level-translating buffer isolating 5-V sensor outputs from 3.3-V MCU I/O pins. Use Value: Eliminates external voltage dividers and reduces BOM count while ensuring IEC 60601-1 creepage compliance via SOT-553 footprint. |
| Industrial Motor Control I/O | Electronic Point-of-Sale Terminal |
Use Scenario: Driving isolated gate drivers or optocoupler inputs from PLC output modules in AC induction motor drives. IC Role / Device Role / Timing Role: Robust 3-state buffer providing noise-immune digital output staging before isolation barriers. Use Value: Delivers ±8 mA drive into capacitive loads while surviving –40°C to +125°C ambient per EN 61800-3. | Use Scenario: Interfacing barcode scanner, receipt printer, and cash drawer control lines to ARM-based POS mainboard. IC Role / Device Role / Timing Role: Low-power bus buffer managing shared GPIO expansion in space-limited retail hardware. Use Value: Reduces standby current by >95% versus discrete transistor solutions, extending battery life in portable terminals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DRLR | Lower VCC range (1.65–5.5 V); 3.5 ns tpd at 3.3 V; higher drive (±24 mA at 3.3 V) | Better suited for 1.8-V/3.3-V systems requiring faster edges and stronger drive; not rated for 2-V operation. | Select when speed and drive exceed SN74AHC1G125DRLR requirements and 2-V operation is unnecessary. |
| 74AUP1G125GW,125 | Ultra-low power (0.9 µA ICC); VCC = 0.8–3.6 V; 12 ns tpd at 3.3 V; smaller XSON-6 package | Optimized for sub-1-V battery operation and minimal quiescent current; incompatible with 5-V interfaces. | Choose for energy-harvesting or coin-cell applications where 5-V tolerance and 6 ns speed are not required. |
Compared with SN74LVC1G125DRLR and 74AUP1G125GW,125, the SN74AHC1G125DRLR uniquely balances 2-V minimum operation, 5.5-V input tolerance, and 6 ns speed - making it the only option supporting full 2–5.5 V interoperability in compact SOT-553 form.
Availability
SN74AHC1G125DRLR is available at Aetrix Electronics and suitable for projector control interfaces, patient monitoring signal routing, and industrial motor control I/O requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.
Supply support for SN74AHC1G125DRLR 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision logic, power management, and signal chain technologies.
The SN74AHC1G125DRLR belongs to TI's AHC logic family - designed specifically for low-power, high-speed CMOS bus interfacing in space-constrained industrial, medical, and consumer applications.
FAQ
What is the maximum operating voltage for SN74AHC1G125DRLR?
The SN74AHC1G125DRLR supports a supply voltage range of 2 V to 5.5 V. Its inputs tolerate up to 5.5 V regardless of VCC, enabling robust interfacing with 5-V peripherals even when powered at 3.3 V or 2.5 V. Absolute maximum VCC is 7 V, but sustained operation above 5.5 V violates recommended conditions and may impact reliability.
Does SN74AHC1G125DRLR support level translation?
Yes, the SN74AHC1G125DRLR supports down-translation: its inputs accept voltages up to 5.5 V independent of VCC, allowing connection to 5-V logic while operating at 3.3 V or 2.5 V. However, it does not support up-translation - output swing is limited to VCC and GND, so it cannot generate 5-V signals when powered at 3.3 V.
What is the thermal resistance of SN74AHC1G125DRLR in its SOT-553 package?
The SN74AHC1G125DRLR in the DRL package has a junction-to-ambient thermal resistance (RθJA) of 328.7°C/W and a junction-to-board thermal resistance (RθJB) of 150.3°C/W. These values assume JEDEC-standard PCB mounting with 1-in² copper pad; actual performance improves with enhanced thermal vias and copper area per TI's SLLP-012 layout guidance.
How should the OE pin be handled during power-up for SN74AHC1G125DRLR?
To ensure high-impedance output during power-up/power-down, OE should be tied to VCC through a pullup resistor. TI recommends a value that limits current to <1 mA at worst-case VCC (5.5 V), i.e., ≤5.6 kΩ. This prevents unintended bus contention before system firmware initializes the enable signal.
Is SN74AHC1G125DRLR suitable for automotive applications?
The SN74AHC1G125DRLR is not AEC-Q200 qualified. For automotive use, TI offers the pin-compatible SN74AHC1G125-Q1, which undergoes extended temperature testing (–40°C to +125°C), enhanced ESD robustness, and failure analysis per AEC-Q100. The standard SN74AHC1G125DRLR remains appropriate for industrial and medical applications within the same temperature range.
SN74AHC1G125DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- SOT-553
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-5
SN74AHC1G125DRLR FAQ
1.How can I place an order for SN74AHC1G125DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC1G125DRLR 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 SN74AHC1G125DRLR reliable?
The price and inventory of SN74AHC1G125DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC1G125DRLR is usually 5 days.
3.What payment methods are accepted for SN74AHC1G125DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AHC1G125DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AHC1G125DRLR?
SN74AHC1G125DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AHC1G125DRLR 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 SN74AHC1G125DRLR?
For technical support, including SN74AHC1G125DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC1G125DRLR requirements.
6.How does Aetrix verify that SN74AHC1G125DRLR is sourced from the original manufacturer or authorized distributors?
All SN74AHC1G125DRLR 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 SN74AHC1G125DRLR meets industry standards.
7.What is the process for return or replacement of SN74AHC1G125DRLR?
All SN74AHC1G125DRLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC1G125DRLR, 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 SN74AHC1G125DRLR part is unused and in its original packaging.
Return procedure for SN74AHC1G125DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AHC1G125DRLR Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
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…
