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Nexperia USA Inc. 74HC1G126GW,165
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- Part No.:
- 74HC1G126GW,165
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74HC1G126GW,165.pdf
- Description:
- IC BUFFER NON-INVERT 6V 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,192
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Product details
Overview
74HC1G126GW,165 from Nexperia is a single CMOS bus buffer/line driver with 3-state output, designed for signal isolation and bidirectional bus control in low-voltage digital systems. It operates from 2.0 V to 6.0 V, delivers symmetrical output impedance (typ. 25 Ω), supports -40 °C to +125 °C ambient range, and features TTL-compatible input thresholds only in the HCT variant - this part is HC logic. It is used in I²C bus level-shifting interfaces where controlled enable timing and high noise immunity are required.
For engineers reviewing the 74HC1G126GW,165 datasheet, 74HC1G126GW,165 pinout, 74HC1G126GW,165 application, or 74HC1G126GW,165 equivalent, key selection criteria include its 3-state enable timing (ten = 8 ns typ. at VCC = 6.0 V), propagation delay (tpd = 9 ns typ. at VCC = 6.0 V), input clamping diodes enabling overvoltage-tolerant interfacing, and TSSOP5 (SOT353-1) package compatibility with space-constrained PCB layouts.
Technical Context
This device implements a non-inverting buffer with active-high 3-state enable (OE), where output Y follows input A when OE = HIGH and enters high-impedance state when OE = LOW. Its CMOS input structure provides rail-to-rail voltage tolerance via integrated clamp diodes, allowing safe interface to signals exceeding VCC when current-limiting resistors are used.
It exhibits balanced tPLH/tPHL propagation delays (≤21 ns max at VCC = 6.0 V, CL = 50 pF), matched enable/disable timing (ten/tdis ≤32 ns max), and low dynamic power dissipation (CPD = 30 pF), making it suitable for low-jitter signal routing in mixed-voltage domains without external level translators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct operation across 3.3 V and 5 V logic domains without level shifters. |
| Propagation Delay (tpd) | 9 ns typical at VCC = 6.0 V, CL = 50 pF - ensures minimal signal skew in high-speed data paths. |
| Enable Time (ten) | 8 ns typical at VCC = 6.0 V - supports fast bus arbitration and dynamic line sharing. |
| Output Drive Strength | ±35 mA max sink/source - sufficient to drive 50 pF loads with <1 V undershoot/overshoot under standard conditions. |
| Input Clamp Diodes | Integrated - permits safe connection of inputs to voltages up to VCC + 0.5 V using series resistors. |
| Operating Temperature | -40 °C to +125 °C - qualified for industrial and extended-temperature embedded control applications. |
| ESD Protection | HBM >2000 V, CDM >1000 V - reduces need for external ESD protection in board-level designs. |
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-high output enable | Drives Y into high-Z when LOW; must be pulled HIGH (via resistor or logic) to activate buffer function. |
| 2 - A | Non-inverting data input | Accepts CMOS-level signals (VIH ≥1.5 V @ VCC = 2.0 V); clamped to prevent damage from overvoltage. |
| 3 - GND | Ground reference | Primary return path for all internal currents; requires low-impedance PCB connection to minimize noise coupling. |
| 4 - Y | 3-state buffered output | Provides rail-to-rail swing (VOH ≥5.34 V @ VCC = 6.0 V, IO = −7.8 mA); high-Z leakage <10 μA. |
| 5 - VCC | Positive supply | Must be decoupled with 100 nF ceramic capacitor near pin; supports wide-range operation without regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2.0 V–6.0 V operation eliminates need for separate voltage rails in multi-supply systems. |
| Symmetrical Output Impedance | Typical 25 Ω pull-up/pull-down - ensures matched rise/fall times and reduced signal distortion. |
| Latch-up Immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events. |
| Low Input Leakage | <1.0 μA max at VI = VCC or GND - preserves signal integrity in high-impedance sensing or battery-backed circuits. |
| High Noise Immunity | VIL = 0.5 V min / VIH = 1.5 V min @ VCC = 2.0 V - provides >0.5 V noise margin in noisy industrial environments. |
Applications
| Industrial Sensor Interface | I²C Bus Isolation |
|---|---|
|
Use Scenario: Isolating analog sensor ADC outputs from shared microcontroller data buses in PLC modules. IC Role / Device Role / Timing Role: Acts as a controlled signal gate between sensor front-end and MCU, activated only during read cycles to prevent bus contention. Use Value: Eliminates cross-talk between multiple sensors sharing one bus, leveraging 3-state disable to reduce standby current by >95% versus always-on buffers. |
Use Scenario: Level-shifting and isolating I²C SDA/SCL lines between 3.3 V MCU and 5 V EEPROM in automotive infotainment head units. IC Role / Device Role / Timing Role: Provides bidirectional buffering with precise enable timing synchronized to MCU clock edges to avoid I²C protocol violations. Use Value: Enables reliable communication across voltage domains without external MOSFET translators, reducing BOM count and layout area by 40%. |
| USB-C Power Delivery Control | Programmable Logic Interconnect |
|
Use Scenario: Routing configuration signals (e.g., CC line detection status) between USB PD controller and system PMIC in portable chargers. IC Role / Device Role / Timing Role: Buffers and gates critical handshake signals with sub-10 ns enable response to meet USB PD specification timing windows. Use Value: Guarantees <15 ns total path delay (including PCB trace), meeting USB PD 3.1 timing budget for fault-safe negotiation sequences. |
Use Scenario: Interfacing FPGA I/O banks operating at different VCCIO levels (1.8 V, 2.5 V, 3.3 V) on reconfigurable test equipment backplanes. IC Role / Device Role / Timing Role: Serves as a programmable interconnect switch element, controlled by FPGA GPIO to route signals dynamically between voltage domains. Use Value: Supports hot-swap reconfiguration without power cycling; 3-state isolation prevents back-driving of unpowered I/O banks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC1G126GW,165 | Lower VCC range (1.65 V–5.5 V); higher drive (±32 mA); faster tpd (5.5 ns typ. @ 3.3 V) | Better suited for 1.8 V/2.5 V systems; not rated for 6 V operation or -40 °C to +125 °C full range | Select when targeting ultra-low-voltage logic or tighter timing budgets; verify VCC compatibility and temp range match. |
| SN74LVC1G126DBVR | Same logic function; SOT-23-5 package; slightly higher ICC (20 μA max vs. 10 μA); identical timing specs at 3.3 V | Preferred for legacy SOT-23 footprints; lacks TSSOP5's thermal performance at high ambient temperatures | Choose for drop-in replacement in existing SOT-23 designs; confirm thermal derating meets +125 °C board hotspot requirements. |
Compared with 74HC1G126GW,165, the LVC variants offer superior speed and lower-voltage support but sacrifice 6 V tolerance and extended temperature robustness; the SN74LVC1G126DBVR trades package thermal efficiency for footprint compatibility, while the 74LVC1G126GW,165 prioritizes modern low-VCC systems over industrial-grade voltage margin.
Availability
74HC1G126GW,165 is available at Aetrix Electronics and suitable for industrial sensor interfaces, I²C bus isolation, USB-C power delivery control, and FPGA interconnect applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC1G126GW,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 delivering high-performance, reliable, and energy-efficient components for automotive, industrial, computing, consumer, and communications markets.
The 74HC1G126GW,165 belongs to Nexperia's 74HC logic family - engineered for robustness in harsh environments, emphasizing wide supply range, high noise immunity, and guaranteed operation across industrial temperature extremes.
FAQ
Is the 74HC1G126GW,165 compatible with 5 V TTL input signals?
No - the 74HC1G126GW,165 uses CMOS input thresholds (VIH ≥1.5 V @ VCC = 2.0 V), not TTL-compatible levels. For TTL input compatibility, use the 74HCT1G126GW variant, which specifies VIH = 2.0 V min at VCC = 4.5 V–5.5 V. Direct connection of 5 V TTL outputs to this HC part may result in unreliable HIGH recognition below 3.15 V at VCC = 4.5 V.
What is the maximum capacitive load this buffer can drive reliably?
The device is characterized up to 50 pF (per dynamic specs), with typical tpd = 9 ns and ten = 8 ns at that load. Driving >50 pF increases propagation delay nonlinearly and may cause overshoot/undershoot beyond ±0.3 V if trace impedance is mismatched. For loads >75 pF, add series termination or consider dual-driver alternatives like 74HC2G126.
Can OE be left floating in circuit design?
No - OE must be actively driven HIGH or LOW. Floating OE violates recommended operating conditions and risks metastability, causing unpredictable Y output states (partial conduction or oscillation). Always tie OE to VCC via 10 kΩ pull-up or to GND via pull-down, or connect directly to a controlled logic signal.
Does this part support hot-swap insertion into a live bus?
Yes - the integrated input clamp diodes and ±20 mA input clamping current rating allow safe connection to powered buses when used with appropriate series current-limiting resistors (e.g., 1 kΩ for ≤1 V overvoltage). However, hot-swap of the Y output into an active bus requires external series resistance to limit transient current during enable edge transitions.
74HC1G126GW,165 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP
74HC1G126GW,165 FAQ
1.How can I place an order for 74HC1G126GW,165 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC1G126GW,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 74HC1G126GW,165 reliable?
The price and inventory of 74HC1G126GW,165 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC1G126GW,165 is usually 5 days.
3.What payment methods are accepted for 74HC1G126GW,165?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC1G126GW,165 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC1G126GW,165?
74HC1G126GW,165 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC1G126GW,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 74HC1G126GW,165?
For technical support, including 74HC1G126GW,165 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC1G126GW,165 requirements.
6.How does Aetrix verify that 74HC1G126GW,165 is sourced from the original manufacturer or authorized distributors?
All 74HC1G126GW,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 74HC1G126GW,165 meets industry standards.
7.What is the process for return or replacement of 74HC1G126GW,165?
All 74HC1G126GW,165 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC1G126GW,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 74HC1G126GW,165 part is unused and in its original packaging.
Return procedure for 74HC1G126GW,165:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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