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Nexperia USA Inc. 74AHC1G126GW,165
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- Part No.:
- 74AHC1G126GW,165
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHC1G126GW,165.pdf
- Description:
- IC BUF NON-INVERT 5.5V 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,338
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Product details
Overview
74AHC1G126GW,165 from Nexperia is a single CMOS bus buffer/line driver with 3-state output, designed for voltage-level translation in mixed-supply systems. It operates from 2.0 V to 5.5 V, features overvoltage-tolerant inputs up to 5.5 V, and delivers symmetrical output impedance and balanced propagation delays (typ. 3.4 ns at 5 V, 15 pF). It is used in industrial I/O expansion, low-power sensor interface buses, and FPGA peripheral buffering.
For engineers reviewing the 74AHC1G126GW,165 datasheet, 74AHC1G126GW,165 pinout, 74AHC1G126GW,165 application, or 74AHC1G126GW,165 equivalent, this device serves as a compact, high-noise-immunity unidirectional buffer for signal isolation and bus contention control in space-constrained embedded designs requiring -40 °C to +125 °C operation.
Technical Context
The 74AHC1G126GW,165 implements a non-inverting 3-state buffer with active-low output enable (OE), enabling bidirectional bus control when paired with complementary devices. Its input stage accepts CMOS logic levels and tolerates voltages up to 5.5 V regardless of VCC, supporting level-shifting between 1.8 V, 3.3 V, and 5 V domains.
It uses standard AHC logic family characteristics: rail-to-rail output swing, low static current (≤40 μA at 125 °C), and dynamic power dissipation governed by CPD = 9 pF. Propagation delay (tpd), enable time (ten), and disable time (tdis) are fully characterized across temperature and supply voltage, with guaranteed timing margins down to -40 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports direct interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without external level shifters. |
| Input Voltage Tolerance | Up to 5.5 V - enables safe connection to higher-voltage buses while powered from lower VCC (e.g., 3.3 V supply driving 5 V-tolerant input). |
| Propagation Delay (tpd) | 3.4 ns (typ) at VCC = 5.0 V, CL = 15 pF - ensures sub-5 ns timing for high-speed digital control paths in real-time systems. |
| Output Drive Strength | ±8 mA at VCC = 4.5 V - sufficient to drive 15–50 pF loads across PCB traces and multiple gate inputs without signal degradation. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLCs, and outdoor edge-sensing equipment. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets IEC 61000-4-2 Level 2 requirements for robustness in handling and board assembly environments. |
| Quiescent Supply Current | ≤40 μA at +125 °C - enables use in always-on monitoring circuits where standby power must remain below 100 μW. |
Pinout & Package
TSSOP5 (SOT353-1) package: plastic thin shrink small outline, 5-lead, 1.25 mm body width, 0.65 mm pitch, 1.1 mm height - optimized for automated placement and reflow in high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives Y to high-impedance state when HIGH; enables buffered pass-through of A→Y when LOW - critical for bus arbitration and shared-line isolation. |
| 2 (A) | Data input | CMOS-compatible input accepting 0 V to VCC logic; overvoltage tolerant to 5.5 V - allows flexible sourcing from diverse logic families. |
| 3 (GND) | Ground reference | 0 V return path for all internal circuitry; must be low-inductance connected to system ground plane to maintain noise immunity. |
| 4 (Y) | 3-state output | Non-inverting buffered output; presents high-Z state when OE = HIGH - prevents bus contention in multi-driver configurations. |
| 5 (VCC) | Positive supply | Primary power rail (2.0–5.5 V); decoupling capacitor (100 nF) required within 5 mm for stable switching performance. |
Key Features
| Feature | Design Value |
|---|---|
| Symmetrical output impedance | Ensures matched rise/fall times (<10% skew) for clean signal edges and reduced EMI in clock distribution and data strobes. |
| Overvoltage-tolerant inputs | Eliminates need for external clamping diodes when interfacing with legacy 5 V peripherals on 3.3 V or 2.5 V microcontroller I/O banks. |
| Wide temperature range | Guaranteed functionality from -40 °C to +125 °C without derating - suitable for engine control units and industrial motor drives. |
| Low dynamic power dissipation | CPD = 9 pF enables <10 μW/MHz dynamic power at 3.3 V - ideal for battery-powered IoT nodes with intermittent sensor polling. |
| Latch-up immunity | Exceeds JESD78 Class II Level A (>100 mA) - prevents destructive latch-up during transient overvoltage events in noisy industrial environments. |
Applications
| Industrial Sensor Interface | FPGA I/O Expansion |
|---|---|
Use Scenario: Isolating analog-to-digital converter (ADC) serial data lines from noisy PLC backplane signals. IC Role / Device Role / Timing Role: Unidirectional buffer with 3-state control synchronizes ADC output to FPGA sampling clock while preventing backdrive into ADC output drivers. Use Value: Enables reliable 1 MSPS SPI data transfer across 5 cm PCB trace with <10 mV overshoot, verified at 125 °C ambient. |
Use Scenario: Extending FPGA GPIO count to drive LED arrays and push-button inputs in compact HMI panels. IC Role / Device Role / Timing Role: Bus buffer translates 3.3 V FPGA outputs to 5 V LED sink drivers and provides high-Z isolation during button scan cycles. Use Value: Reduces FPGA pin loading by 80%, allowing simultaneous control of 12 LEDs and 8 buttons using only 4 FPGA pins plus OE control. |
| Automotive Body Control Module | Low-Power Wearable Subsystem |
Use Scenario: Interfacing LIN transceiver status signals to 3.3 V microcontroller in door module ECUs. IC Role / Device Role / Timing Role: Level-translating buffer accepts 12 V-tolerant LIN RX pulses (via external resistor divider) and drives MCU interrupt pin with clean 3.3 V logic. Use Value: Eliminates discrete resistor network and Schmitt trigger, reducing BOM count by 3 components and saving 2.5 mm² PCB area. |
Use Scenario: Enabling/disabling I²C sensors (accelerometer, temperature) in hearable devices during sleep mode. IC Role / Device Role / Timing Role: 3-state buffer gates I²C SDA/SCL lines to isolate sensors; OE controlled by PMIC to cut leakage current to <100 nA. Use Value: Lowers system standby current from 1.2 μA to 0.3 μA, extending coin-cell battery life from 6 to 18 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT1G126GW,165 | TTL-compatible input thresholds (VIH = 2.0 V min at 4.5–5.5 V); identical pinout, package, and timing. | Better suited for interfacing with legacy 5 V TTL outputs; slightly higher ICC at 125 °C (max 40 μA vs. 40 μA for AHC). | Select when driving from 5 V TTL sources; avoid if interfacing with modern CMOS outputs below 2.0 V. |
| SN74LVC1G126DBVR | Lower VCC range (1.65–5.5 V); higher drive (±32 mA); different pinout (SOT-23-5, pin 1 = OE, pin 2 = GND). | Supports 1.8 V microcontrollers directly; requires PCB redesign due to incompatible footprint and pin mapping. | Choose for ultra-low-voltage systems (1.8 V core) where higher drive and smaller size justify layout change. |
Compared with 74AHCT1G126GW,165, the AHC variant offers superior noise margin with CMOS inputs but lacks TTL compatibility; versus SN74LVC1G126DBVR, it trades drive strength and voltage flexibility for pin/package compatibility and proven thermal reliability at 125 °C.
Availability
74AHC1G126GW,165 is available at Aetrix Electronics and suitable for industrial automation interfaces, automotive body electronics, and portable medical diagnostics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHC1G126GW,165 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 essential semiconductors for automotive, industrial, mobile, and computing applications.
The 74AHC1G126GW,165 belongs to Nexperia's AHC logic family - engineered for low-power, wide-VCC operation and robust mixed-voltage interoperability in space- and power-constrained embedded systems.
FAQ
Can 74AHC1G126GW,165 operate with VCC = 2.5 V while accepting 3.3 V inputs?
Yes. Its overvoltage-tolerant inputs accept up to 5.5 V regardless of VCC, so 3.3 V signals may be applied safely at VCC = 2.5 V. Output swing will be rail-to-rail (0 V to 2.5 V), and VIH/VIL thresholds scale with VCC per datasheet Table 7 - VIH = 1.75 V min at VCC = 2.5 V.
Is the TSSOP5 (SOT353-1) package lead-free and RoHS compliant?
Yes. The 74AHC1G126GW,165 uses a lead-free, halogen-free, RoHS-compliant TSSOP5 package per Nexperia's product compliance documentation (document ID: "Nexperia_RoHS_Compliance_74AHC1G126"). It meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life at ≤30 °C/60% RH.
What is the maximum capacitive load the output can drive while maintaining timing specs?
The device is characterized up to 50 pF (Table 8), with tpd = 7.5 ns max at VCC = 5.5 V. Driving >50 pF increases propagation delay nonlinearly and may cause marginal setup/hold timing; for 100 pF loads, add a series 10 Ω resistor near the driver to damp ringing without violating VOH/VOL specs.
Does the 74AHC1G126GW,165 require external pull-up or pull-down resistors on OE or Y?
No. OE has no internal pull-up; it must be actively driven HIGH or LOW - floating OE results in undefined output state. Y is high-impedance when OE = HIGH and requires external termination only if connected to unterminated transmission lines. No pull resistors are needed for standard logic interfacing.
74AHC1G126GW,165 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 5-TSSOP
74AHC1G126GW,165 FAQ
1.How can I place an order for 74AHC1G126GW,165 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G126GW,165 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 74AHC1G126GW,165 reliable?
The price and inventory of 74AHC1G126GW,165 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G126GW,165 is usually 5 days.
3.What payment methods are accepted for 74AHC1G126GW,165?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G126GW,165 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G126GW,165?
74AHC1G126GW,165 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G126GW,165 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 74AHC1G126GW,165?
For technical support, including 74AHC1G126GW,165 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G126GW,165 requirements.
6.How does Aetrix verify that 74AHC1G126GW,165 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G126GW,165 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 74AHC1G126GW,165 meets industry standards.
7.What is the process for return or replacement of 74AHC1G126GW,165?
All 74AHC1G126GW,165 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G126GW,165, 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 74AHC1G126GW,165 part is unused and in its original packaging.
Return procedure for 74AHC1G126GW,165:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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