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Nexperia USA Inc. 74AHCT1G125GW,125
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- Part No.:
- 74AHCT1G125GW,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHCT1G125GW,125.pdf
- Description:
- IC BUF NON-INVERT 5.5V 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,911
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Product details
Overview
74AHCT1G125GW,125 from Nexperia is a single 3-state bus buffer/line driver with TTL-compatible input thresholds, 2.0–5.5 V supply range, overvoltage-tolerant inputs (up to 5.5 V), and operation from –40 °C to +125 °C. It functions as a level-translating output-enable-controlled signal pass-through in mixed-voltage digital interfaces such as microcontroller GPIO expansion or sensor data bus isolation.
For engineers reviewing the 74AHCT1G125GW,125 datasheet, 74AHCT1G125GW,125 pinout, 74AHCT1G125GW,125 application, or 74AHCT1G125GW,125 equivalent, key selection criteria include its TTL-level input compatibility, 5-pin TSSOP5 package footprint, sub-7 ns propagation delay at 5 V/15 pF, and guaranteed high-impedance output state for bus contention avoidance.
Technical Context
This device implements a single non-inverting buffer with active-low 3-state output control (OE). Its TTL-level input threshold (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensures direct compatibility with legacy 5 V logic families while operating from modern 3.3 V supplies. The overvoltage-tolerant inputs enable safe interfacing between higher-voltage peripherals and lower-voltage controllers without external level-shifting circuitry.
Propagation delay (tpd ≤ 5.5 ns), enable time (ten ≤ 7.0 ns), and disable time (tdis ≤ 9.5 ns) are specified across –40 °C to +125 °C at VCC = 4.5–5.5 V and CL = 15 pF. Output drive strength is ±8 mA at VOH/VOL specifications, with symmetrical impedance supporting clean signal integrity on shared buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - Ensures robust operation in standard 5 V systems with ±5% tolerance. |
| Input threshold (VIH/VIL) | 2.0 V / 0.8 V - Matches TTL logic levels for seamless integration with 74LS, 74F, and microcontroller I/Os. |
| Propagation delay | ≤5.5 ns @ VCC = 5.0 V, CL = 15 pF - Supports >100 MHz bus toggle rates in low-latency control paths. |
| Output drive | ±8 mA - Sufficient to drive 10–15 cm PCB traces or 2–3 standard CMOS/TTL loads without buffering. |
| Operating temperature | –40 °C to +125 °C - Qualified for under-hood automotive modules, industrial PLC I/O, and high-reliability embedded systems. |
| ESD protection | HBM >2000 V, CDM >1000 V - Reduces need for external TVS diodes in board-level ESD design. |
| Power dissipation | ICC ≤ 40 μA @ VCC = 5.5 V - Enables ultra-low static power in always-on monitoring circuits. |
Pinout & Package
TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm pitch, 1.3 mm height, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives Y to high-impedance when HIGH; enables buffer pass-through when LOW - critical for bus arbitration. |
| 2 (A) | Data input | Non-inverting input accepting TTL-level signals up to 5.5 V regardless of VCC - enables mixed-voltage translation. |
| 3 (GND) | Ground reference | 0 V return path for all internal logic and output current - must be low-inductance connection to minimize ground bounce. |
| 4 (Y) | 3-state output | Buffered, non-inverted copy of A when OE = LOW; high-Z when OE = HIGH - prevents bus conflicts in multi-driver systems. |
| 5 (VCC) | Supply voltage | Primary power rail (4.5–5.5 V); decoupling capacitor (100 nF) required within 5 mm for stable switching performance. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V supply - eliminates need for external level shifters when interfacing with legacy logic. |
| Overvoltage-tolerant inputs | Withstands up to 5.5 V input regardless of VCC (2.0–5.5 V) - allows safe connection to 5 V sensors or switches while powered from 3.3 V. |
| Symmetrical output impedance | Matched pull-up/pull-down resistance - ensures consistent rise/fall times and reduces signal distortion on transmission lines. |
| High noise immunity | Typical noise margin >0.8 V at VCC = 5 V - suppresses false triggering from EMI or crosstalk in dense PCB layouts. |
| Wide temperature range | Specified from –40 °C to +125 °C - supports deployment in engine control units, motor drives, and outdoor industrial gateways. |
Applications
| Industrial Sensor Interface | Microcontroller GPIO Expansion |
|---|---|
|
Use Scenario: Isolating analog-to-digital converter (ADC) data lines from noisy PLC backplane signals. IC Role / Device Role / Timing Role: 3-state buffer isolates ADC output during multiplexer channel switching to prevent bus contention. Use Value: Prevents data corruption by ensuring only one device drives the shared data bus at any time, leveraging OE control synchronized with mux select timing. |
Use Scenario: Extending limited GPIO count of an ARM Cortex-M0+ MCU to drive multiple LED indicators and pushbutton inputs. IC Role / Device Role / Timing Role: Bidirectional bus buffer translates 3.3 V MCU logic to 5 V indicator LEDs and accepts 5 V button returns. Use Value: Overvoltage-tolerant inputs accept 5 V switch signals directly; 3-state outputs allow shared control of multiple LED banks via common OE line. |
| Automotive Body Control Module | Legacy System Integration |
|
Use Scenario: Interfacing a 5 V CAN transceiver's TX/RX status pins with a 3.3 V microcontroller in a door module. IC Role / Device Role / Timing Role: Level-translating buffer conveys transceiver fault flags and mode status without external resistors or voltage dividers. Use Value: Eliminates BOM cost and layout area of discrete level shifters while maintaining full automotive temperature qualification (–40 °C to +125 °C). |
Use Scenario: Retrofitting a 74LS244-based industrial controller with modern low-power logic while retaining existing 5 V backplane wiring. IC Role / Device Role / Timing Role: Pin-compatible replacement for obsolete TTL buffers, providing identical logic function with reduced ICC and improved noise margins. Use Value: Maintains system timing and signal integrity while cutting standby power by >95% versus original bipolar TTL parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHC1G125GW,125 | CMOS-level inputs (VIH = 3.85 V @ VCC = 5.5 V); same package, speed, and temp range. | Requires ≥3.85 V input to register HIGH - unsuitable for direct interface with 3.3 V logic or open-collector 5 V sources. | Select when interfacing exclusively with 5 V CMOS or when higher noise immunity at VIH is required. |
| SN74LVC1G125DBVR | Lower VCC range (1.65–5.5 V); LVTTL inputs; slightly higher tpd (max 7.5 ns @ 3.3 V). | Supports 1.8 V and 2.5 V logic domains; not qualified to +125 °C - limited to commercial/industrial ambient use. | Select for multi-supply systems needing 1.8 V compatibility or where extended temperature is not required. |
Compared with 74AHC1G125GW,125 and SN74LVC1G125DBVR, the 74AHCT1G125GW,125 uniquely balances TTL-level interoperability, automotive-grade temperature support, and pin-for-pin compatibility with legacy 74LS designs - making it optimal for retrofit and mixed-voltage control applications where reliability across extreme conditions is mandatory.
Availability
74AHCT1G125GW,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, microcontroller GPIO expansion, and legacy system integration requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT1G125GW,125 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
Nexperia is a global semiconductor expert specializing in high-performance, energy-efficient logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74AHCT series delivers TTL-compatible logic functions optimized for robustness in mixed-voltage environments, targeting applications demanding reliable signal buffering, level translation, and bus isolation across wide temperature and supply ranges.
FAQ
What is the maximum input voltage the 74AHCT1G125GW,125 can tolerate on its A and OE pins?
The 74AHCT1G125GW,125 features overvoltage-tolerant inputs rated to 5.5 V regardless of VCC level (2.0–5.5 V). This allows direct connection of 5 V signals - such as from legacy microcontrollers or sensors - even when the device is powered from 3.3 V, eliminating external clamping components.
Can the 74AHCT1G125GW,125 operate reliably at 3.3 V supply?
Yes - although designed for TTL-level compatibility at 5 V, the 74AHCT1G125GW,125 is fully specified from 4.5 V to 5.5 V. At 3.3 V, it falls outside recommended operating conditions; use the 74AHC1G125GW,125 variant instead, which supports 2.0–5.5 V with CMOS input thresholds.
Is the TSSOP5 (SOT353-1) package of this part compatible with reflow soldering per J-STD-020?
Yes - the 74AHCT1G125GW,125 in TSSOP5 package is qualified for standard lead-free reflow profiles per J-STD-020, including peak temperatures up to 260 °C. Its moisture sensitivity level (MSL) is 1, meaning unlimited floor life at ≤30 °C/60% RH when sealed per JEDEC standards.
How does the 3-state output behave during power-up or brown-out conditions?
The 74AHCT1G125GW,125 incorporates power-on reset circuitry that holds the output (Y) in high-impedance until VCC reaches ~1.5 V and stabilizes. This prevents undefined output states or bus contention during supply ramp-up or transient dips, enhancing system robustness in uncontrolled power environments.
74AHCT1G125GW,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP
74AHCT1G125GW,125 FAQ
1.How can I place an order for 74AHCT1G125GW,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G125GW,125 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 74AHCT1G125GW,125 reliable?
The price and inventory of 74AHCT1G125GW,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G125GW,125 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G125GW,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G125GW,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT1G125GW,125?
74AHCT1G125GW,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G125GW,125 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 74AHCT1G125GW,125?
For technical support, including 74AHCT1G125GW,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G125GW,125 requirements.
6.How does Aetrix verify that 74AHCT1G125GW,125 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G125GW,125 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 74AHCT1G125GW,125 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G125GW,125?
All 74AHCT1G125GW,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G125GW,125, 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 74AHCT1G125GW,125 part is unused and in its original packaging.
Return procedure for 74AHCT1G125GW,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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