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Nexperia USA Inc. 74HCT2G125DC,125
- Part No.:
- 74HCT2G125DC,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74HCT2G125DC,125.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,468
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Product details
Overview
74HCT2G125DC,125 from Nexperia is a dual 3-state buffer/line driver with TTL-compatible inputs and CMOS outputs, operating from 4.5 V to 5.5 V supply, delivering propagation delay of 15 ns (typ) at VCC = 4.5 V and CL = 50 pF, and supporting industrial temperature range up to +125 °C - used in bidirectional bus interfacing and level translation between legacy TTL logic and modern CMOS systems.
For engineers reviewing the 74HCT2G125DC,125 datasheet, 74HCT2G125DC,125 pinout, 74HCT2G125DC,125 application, or 74HCT2G125DC,125 equivalent, key selection criteria include TTL-level input compatibility, 3-state output control timing (enable/disable times ≤38 ns), low static current (<20 μA), VSSOP8 package footprint, and guaranteed operation across -40 °C to +125 °C ambient.
Technical Context
This device implements two independent non-inverting buffers, each with active-low 3-state enable (1OE, 2OE). Output states are fully controlled by enable inputs: when enabled, outputs mirror inputs with typical VOH ≥3.84 V and VOL ≤0.33 V at IO = ±6.0 mA; when disabled, outputs enter high-impedance state with leakage ≤±10 μA.
Designed for mixed-voltage system interfacing, it features input clamp diodes enabling safe overvoltage tolerance via external current-limiting resistors, and meets JEDEC JESD7A (4.5–5.5 V) and JESD78 Class II Level B latch-up immunity (>100 mA). ESD protection exceeds 2000 V HBM and 1000 V CDM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and mixed-supply systems without level shifters |
| Input Logic Type | TTL-level - accepts 2.0 V min VIH and 0.8 V max VIL, enabling direct connection to legacy 5 V TTL outputs |
| Propagation Delay | 15 ns (typ) at VCC = 4.5 V, CL = 50 pF - supports reliable data transfer in sub-20 MHz digital buses |
| Enable/Disable Time | ≤38 ns (max) - allows fast bus arbitration and dynamic line sharing in multi-master configurations |
| Output Drive | ±6.0 mA - sufficient to drive standard 50 pF loads and multiple CMOS inputs without buffering |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor controls |
| Static Supply Current | ≤20 μA - enables low-power standby in always-on subsystems without significant quiescent drain |
Pinout & Package
VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8 leads; body width 2.3 mm; pin 1 index located below marking code in lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 | 1OE, 2OE | Active-low output enable inputs - assert LOW to activate respective buffer; HIGH places output in high-Z |
| 2, 5 | 1A, 2A | Data inputs - accept TTL-level signals; internal clamp diodes allow safe interface to voltages >VCC with series resistors |
| 3, 6 | 1Y, 2Y | Buffered outputs - deliver CMOS-compatible levels with 6 mA sink/source capability and <0.33 V VOL |
| 4 | GND | Ground reference - common return path for all I/O and supply currents; must be low-impedance |
| 8 | VCC | Supply voltage - powers internal logic and output stages; requires local 100 nF decoupling near pin |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V - eliminates need for external level translators when interfacing with 74LS/74ALS families |
| 3-state output control | Independent OE pins per channel - enables flexible bus sharing and prevents contention in multi-driver topologies |
| High noise immunity | Typical noise margin >1.2 V - ensures robust operation in electrically noisy industrial environments with EFT/burst immunity |
| Low power dissipation | ICC ≤20 μA at VCC = 5.5 V - reduces thermal load in dense PCB layouts and extends battery life in portable instrumentation |
| Extended temperature range | Specified from -40 °C to +125 °C - supports deployment in engine control units, power inverters, and outdoor telecom equipment |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Bidirectional data routing between microcontroller and isolated I/O expansion cards on a 5 V backplane bus. IC Role / Device Role / Timing Role: Dual 3-state buffer isolates MCU GPIOs from bus loading while enabling dynamic direction control via OE signals. Use Value: Enables clean signal integrity at 10 MHz bus rates with <15 ns propagation delay and <38 ns enable timing, reducing inter-slot skew. |
Use Scenario: Interfacing a 3.3 V MCU to legacy 5 V sensor clusters (e.g., door lock actuators, window switches) in body electronics. IC Role / Device Role / Timing Role: Level-translating buffer with TTL input thresholds accepts 5 V sensor outputs and drives 3.3 V-tolerant MCU inputs safely. Use Value: Eliminates discrete resistor-divider networks while maintaining full 5 V noise margin and supporting hot-plug detection via OE-controlled tri-state. |
| Test Equipment Signal Conditioning | Medical Diagnostic Data Acquisition |
Use Scenario: Driving multiple parallel ADC channels from a single FPGA I/O bank in automated test equipment. IC Role / Device Role / Timing Role: Fan-out buffer with 3-state outputs allows time-multiplexed access to shared analog front-end resources. Use Value: Delivers matched propagation delay (<2 ns skew between channels) and <0.33 V VOL ensures reliable logic-low detection across 8-bit parallel interfaces. |
Use Scenario: Isolating ECG/EEG analog front-end control lines (e.g., PGA gain select, filter config) from main processor in portable diagnostics. IC Role / Device Role / Timing Role: Low-leakage buffer (IOZ ≤±10 μA) prevents DC offset injection into sensitive analog paths during standby. Use Value: Maintains <20 μA ICC in sleep mode while preserving fast wake-up response (<30 ns tdis) for real-time patient event capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G125DCUR | Lower VCC range (1.65–5.5 V); CMOS inputs only; 3.3 V optimized; higher speed (tpd = 3.7 ns typ) | Requires level-shifting for legacy 5 V TTL sources; better suited for 3.3 V-only systems with tighter timing budgets | Select when migrating to 3.3 V core logic and needing faster switching; avoid if interfacing directly to 5 V TTL |
| 74AHC2G125DC,125 | Wider VCC (2.0–5.5 V); CMOS inputs; higher drive (±8 mA); slightly higher ICC (≤40 μA) | Superior fan-out capability but lacks TTL input compatibility - unsuitable for direct 5 V TTL interface without pull-ups | Choose for higher-current loads or wider supply flexibility; not drop-in for TTL source environments |
Compared with SN74LVC2G125DCUR and 74AHC2G125DC,125, the 74HCT2G125DC,125 uniquely bridges legacy 5 V TTL and modern CMOS domains without external components, trading minor speed for guaranteed interoperability and industrial temperature resilience.
Availability
74HCT2G125DC,125 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, test equipment signal routing, and medical diagnostic data acquisition requiring stable component supply across extended temperature ranges.
Supply support for 74HCT2G125DC,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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HCT2G125DC,125 belongs to Nexperia's high-speed TTL-compatible logic family, engineered specifically for robust voltage translation and bus isolation in harsh-environment embedded systems.
FAQ
What is the maximum output current rating for 74HCT2G125DC,125?
The absolute maximum output current per pin is ±35 mA, but the recommended operating condition specifies ±6.0 mA for guaranteed VOH ≥3.84 V and VOL ≤0.33 V at VCC = 4.5 V. Sustained operation above ±6 mA may degrade output voltage margins and increase junction temperature beyond safe limits.
Can 74HCT2G125DC,125 operate with a 3.3 V supply?
No - the 74HCT2G125DC,125 is specified only for 4.5 V to 5.5 V operation. Its TTL-input thresholds (VIH = 2.0 V min) are calibrated for 5 V systems; at 3.3 V, VIH would exceed VCC, causing unreliable HIGH recognition. Use 74LVC2G125 for 3.3 V applications.
How does the input clamping diode function in this device?
Each input includes an internal clamp diode to VCC and GND. When an input voltage exceeds VCC + 0.5 V or falls below GND − 0.5 V, the diode conducts, limiting voltage excursion. A series current-limiting resistor must be used externally to restrict clamp current to ≤±20 mA, preventing damage.
Is 74HCT2G125DC,125 qualified for automotive applications?
While rated for -40 °C to +125 °C, this part is not AEC-Q100 qualified and lacks automotive-specific reliability testing (e.g., HTOL, ESD stress beyond standard HBM/CDM). It may be used in non-safety-critical automotive modules where customer qualification is performed, but not for ASIL-B or higher systems.
74HCT2G125DC,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 6mA, 6mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
74HCT2G125DC,125 FAQ
1.How can I place an order for 74HCT2G125DC,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT2G125DC,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 74HCT2G125DC,125 reliable?
The price and inventory of 74HCT2G125DC,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT2G125DC,125 is usually 5 days.
3.What payment methods are accepted for 74HCT2G125DC,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT2G125DC,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT2G125DC,125?
74HCT2G125DC,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT2G125DC,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 74HCT2G125DC,125?
For technical support, including 74HCT2G125DC,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT2G125DC,125 requirements.
6.How does Aetrix verify that 74HCT2G125DC,125 is sourced from the original manufacturer or authorized distributors?
All 74HCT2G125DC,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 74HCT2G125DC,125 meets industry standards.
7.What is the process for return or replacement of 74HCT2G125DC,125?
All 74HCT2G125DC,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT2G125DC,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 74HCT2G125DC,125 part is unused and in its original packaging.
Return procedure for 74HCT2G125DC,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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