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Nexperia USA Inc. 74HCT1G125GW,125
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- Part No.:
- 74HCT1G125GW,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74HCT1G125GW,125.pdf
- Description:
- IC BUF NON-INVERT 5.5V 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:41,228
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Product details
Overview
74HCT1G125GW,125 from Nexperia is a single 3-state bus buffer/line driver with TTL-compatible inputs, 5-pin TSSOP5 (SOT353-1) package, VCC range 4.5–5.5 V, propagation delay ≤30 ns at 4.5 V, and operating temperature −40 °C to +125 °C - used for bidirectional data isolation in microcontroller I/O expansion and legacy parallel bus interfacing.
For engineers reviewing the 74HCT1G125GW,125 datasheet, 74HCT1G125GW,125 pinout, 74HCT1G125GW,125 application, or 74HCT1G125GW,125 equivalent, key selection criteria include TTL-level input compatibility, 3-state output enable timing (ten ≤42 ns), low ICC (≤20 μA), high noise immunity (>400 mV noise margin at 5 V), and industrial-grade thermal performance up to 125 °C.
Technical Context
This device implements a non-inverting buffer with active-low 3-state output control (OE), enabling shared-bus contention avoidance in multi-driver systems. Its TTL-input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensure direct compatibility with legacy 5 V logic families without level-shifting.
Internally, it uses standard CMOS silicon with input clamp diodes for overvoltage tolerance, symmetrical output drive (IO = ±6 mA), and balanced tPLH/tPHL propagation delays. The design complies with JEDEC JESD7A and supports HBM ESD >2000 V and CDM >1000 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures stable operation across standard 5 V supply rails with ±10 % tolerance. |
| Input Logic Type | TTL-compatible - accepts 0.8 V max LOW and 2.0 V min HIGH, eliminating need for external level shifters with 5 V MCUs. |
| tpd (A→Y) | ≤30 ns at VCC = 4.5 V, CL = 50 pF - enables reliable timing in 33 MHz bus cycles with margin. |
| ten / tdis | ≤42 ns / ≤38 ns at VCC = 4.5 V - guarantees fast bus arbitration and clean signal release during state transitions. |
| IO Drive | ±6.0 mA at VCC = 4.5 V - sufficient to drive 10 LSTTL loads or 50 pF traces without waveform degradation. |
| Operating Temp | −40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor controllers. |
| ICC (Quiescent) | ≤20 μA at VCC = 5.5 V - supports low-power sleep modes in battery-backed systems. |
Pinout & Package
TSSOP5 (SOT353-1) package: plastic thin shrink small outline, 5-lead, body width 1.25 mm, 0.65 mm pitch, exposed pad not present, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output enable (active LOW) | Asserting LOW enables Y output; HIGH forces high-impedance state - essential for bus sharing and hot-swap isolation. |
| 2 (A) | Data input | Non-inverting input accepting TTL-level signals; includes clamp diodes for ±20 mA transient current handling. |
| 3 (GND) | Ground reference | 0 V return path for all internal logic and output drivers; must be low-inductance connection to minimize ground bounce. |
| 4 (Y) | 3-state output | Buffered, non-inverted replica of A when OE = LOW; presents >100 kΩ impedance when OE = HIGH. |
| 5 (VCC) | Supply voltage | Primary power rail; requires local 100 nF ceramic decoupling within 5 mm to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| TTL input thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V at 4.5–5.5 V - enables direct interface with 74LS, 74ALS, and legacy microcontrollers without pull-ups or translators. |
| 3-state output control | Active-low OE with <42 ns enable/disable timing - allows precise bus turnaround in half-duplex protocols like SPI slave select or memory address latching. |
| High noise immunity | Typical noise margin >400 mV at 5 V - prevents false triggering in electrically noisy environments such as motor drives and PLC backplanes. |
| Industrial temperature range | −40 °C to +125 °C operation - validated for use in extended-temperature applications including automotive body control modules and industrial HMIs. |
| Low dynamic power | CPD = 27 pF - limits switching power dissipation to <1.5 mW at 10 MHz, supporting thermally constrained PCB layouts. |
Applications
| Microcontroller I/O Expansion | Legacy Parallel Bus Isolation |
|---|---|
Use Scenario: Expanding GPIO count on an ARM Cortex-M0+ MCU with limited native parallel pins for driving LED arrays and keypad scanning. IC Role / Device Role: Bidirectional buffer isolating MCU port pins from higher-capacitance peripheral buses while maintaining signal integrity. Use Value: Enables 3-state control via dedicated OE line to prevent bus contention during simultaneous read/write operations, reducing firmware complexity. | Use Scenario: Interfacing a modern SoC with a legacy 8-bit ISA-style peripheral card requiring strict 5 V TTL signaling and bus arbitration. IC Role / Device Role: Unidirectional bus driver translating SoC logic levels to full 5 V TTL swing with controlled enable timing. Use Value: Eliminates need for discrete transistor buffers or level translators, cutting BOM cost by 40 % and board area by 60 %. |
| Industrial Sensor Data Multiplexing | Programmable Logic Interface |
Use Scenario: Aggregating analog sensor outputs (via ADCs) onto a shared 12-bit parallel data bus in a DIN-rail mounted PLC module. IC Role / Device Role: 3-state buffer enabling time-multiplexed sampling from multiple ADC channels without hardware switches. Use Value: Reduces inter-channel crosstalk by >25 dB compared to passive multiplexing, improving effective resolution by 1.2 bits. | Use Scenario: Connecting CPLD configuration data lines to flash memory in a field-upgradable industrial controller. IC Role / Device Role: Output-enable-controlled data path between CPLD and parallel NOR flash, preventing write corruption during reset sequences. Use Value: Guarantees OE-driven high-Z state during power-on reset, eliminating risk of bus contention that could erase flash sectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC1G125GW,125 | Lower VCC range (1.65–5.5 V); CMOS inputs; 3.3 V optimized; tpd = 3.7 ns typical at 3.3 V. | Better suited for mixed-voltage 3.3 V/5 V systems; lacks TTL input compatibility. | Select when interfacing with 3.3 V FPGAs or low-voltage MCUs - avoid if legacy 5 V TTL sources are present. |
| SN74LVC1G125DBVR | Same logic function; SOT-23-5 package; identical electrical specs; TI's characterization at −40 °C to +125 °C. | Pin-compatible but different marking and tape/reel packaging; no functional difference in circuit behavior. | Use for second-source procurement where Nexperia supply constraints exist; verify reel orientation and moisture sensitivity level (MSL) before assembly. |
Compared with 74LVC1G125GW,125, the 74HCT1G125GW,125 provides guaranteed TTL input compatibility critical for legacy system integration, while SN74LVC1G125DBVR offers identical functionality in an alternate footprint for supply chain diversification - neither matches the HCT variant's robust 5 V noise margin or industrial thermal validation out-of-box.
Availability
74HCT1G125GW,125 is available at Aetrix Electronics and suitable for microcontroller I/O expansion, industrial sensor multiplexing, legacy parallel bus isolation, and programmable logic interface applications requiring stable component supply across automotive and industrial temperature ranges.
Supply support for 74HCT1G125GW,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 headquartered in Nijmegen, Netherlands, specializing in high-volume logic, analog, and discrete components with focus on reliability, efficiency, and miniaturization.
The 74HCT series targets industrial and automotive applications requiring robust 5 V TTL interoperability, wide temperature operation, and proven latch-up immunity - designed specifically for legacy system upgrades and long-lifecycle embedded deployments.
FAQ
What is the maximum clock frequency supported by 74HCT1G125GW,125?
The device does not operate as a clocked element but as a combinational buffer. Its maximum usable data rate is determined by propagation delay (≤30 ns) and load capacitance. With 50 pF load, it reliably supports data edges up to ~15 MHz; for clean 33 MHz bus timing, keep trace capacitance ≤15 pF per node.
Can 74HCT1G125GW,125 drive a 100 Ω transmission line directly?
No - its output drive strength (±6 mA) is insufficient for 100 Ω termination. It is rated for 50 pF capacitive loads or up to 10 LSTTL units. For transmission line driving, use a dedicated line driver IC (e.g., SN65LVDS1) or add series termination and proper impedance matching.
Does 74HCT1G125GW,125 require external pull-up resistors on the OE pin?
No - OE is an active-low CMOS input with leakage current <1 μA. A direct connection to MCU GPIO or open-drain controller is sufficient. Pull-up resistors are unnecessary unless implementing hardware reset hold-off; if used, 10 kΩ is typical.
Is 74HCT1G125GW,125 qualified for automotive AEC-Q100?
No - this part is not AEC-Q100 qualified. While it operates from −40 °C to +125 °C, Nexperia explicitly states in its legal disclaimers that non-automotive qualified products are unsuitable for safety-critical automotive use. For automotive applications, specify AEC-Q100 grade variants such as 74HCT1G125GV-Q100.
74HCT1G125GW,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- 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:
- 6mA, 6mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP
74HCT1G125GW,125 FAQ
1.How can I place an order for 74HCT1G125GW,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT1G125GW,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 74HCT1G125GW,125 reliable?
The price and inventory of 74HCT1G125GW,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT1G125GW,125 is usually 5 days.
3.What payment methods are accepted for 74HCT1G125GW,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT1G125GW,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT1G125GW,125?
74HCT1G125GW,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT1G125GW,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 74HCT1G125GW,125?
For technical support, including 74HCT1G125GW,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT1G125GW,125 requirements.
6.How does Aetrix verify that 74HCT1G125GW,125 is sourced from the original manufacturer or authorized distributors?
All 74HCT1G125GW,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 74HCT1G125GW,125 meets industry standards.
7.What is the process for return or replacement of 74HCT1G125GW,125?
All 74HCT1G125GW,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT1G125GW,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 74HCT1G125GW,125 part is unused and in its original packaging.
Return procedure for 74HCT1G125GW,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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