My Inquiry
My Account
Nexperia USA Inc. 74AHC1G126GF,132
- Part No.:
- 74AHC1G126GF,132
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 6-XFDFN
- Datasheet:
-
74AHC1G126GF,132.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 6XSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,886
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74AHC1G126GF,132 from Nexperia is a single CMOS bus buffer/line driver with 3-state output and overvoltage-tolerant inputs (up to 5.5 V), enabling level translation in mixed-voltage systems. It operates from 2.0 V to 5.5 V, supports -40 °C to +125 °C ambient range, and delivers symmetrical output impedance and balanced propagation delays (e.g., 3.4 ns typ @ 5 V, CL = 15 pF). Used in industrial I/O expansion and low-power microcontroller peripheral interfacing.
For engineers reviewing the 74AHC1G126GF,132 datasheet, 74AHC1G126GF,132 pinout, 74AHC1G126GF,132 application, or 74AHC1G126GF,132 equivalent, this device serves as a compact, high-noise-immunity unidirectional buffer for voltage-level shifting between 1.8 V/3.3 V and 5 V domains - critical for legacy interface bridging and space-constrained PCB designs.
Technical Context
The 74AHC1G126GF,132 implements a non-inverting 3-state buffer with active-low output enable (OE), where logic HIGH on OE disables Y into high-impedance state. Its CMOS input threshold scales with VCC (VIH = 0.7×VCC min), ensuring robust noise margins across supply voltages.
It features overvoltage-tolerant inputs rated to 5.5 V independent of VCC, allowing safe connection to higher-voltage buses while powered from lower supplies (e.g., 3.3 V). Propagation delay (tpd) and enable/disable timing are tightly controlled (<7 ns max @ 5 V, CL = 50 pF), supporting reliable operation in synchronous digital interfaces up to ~100 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - enables direct integration with 1.8 V, 3.3 V, and 5 V logic families without level shifters. |
| Input Voltage Tolerance | Up to 5.5 V - allows safe interfacing with 5 V buses while VCC = 3.3 V or lower, eliminating external clamping diodes. |
| Propagation Delay (tpd) | 3.4 ns (typ) @ VCC = 5.0 V, CL = 15 pF - supports clean signal integrity in high-speed digital control paths. |
| Output Drive Strength | ±8 mA @ VCC = 4.5 V - sufficient to drive standard TTL loads and moderate capacitive loads (≤50 pF). |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood industrial and automotive-adjacent applications requiring extended thermal margin. |
| Power Dissipation | 250 mW max (derated above 72–74 °C depending on package) - enables use in thermally constrained SMT layouts. |
| ESD Protection | HBM >2000 V, CDM >1000 V - reduces risk of field failure during handling and board assembly. |
Pinout & Package
74AHC1G126GF,132 is packaged in SOT891 - a 6-terminal XSON6 plastic extremely thin small outline package (1.0 × 1.45 × 0.5 mm), optimized for high-density PCBs and automated optical inspection via side-wettable flanks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Data input | Non-inverting input signal path; accepts CMOS-level logic (VIH ≥ 0.7×VCC) and tolerates up to 5.5 V regardless of VCC. |
| OE | Output enable (active LOW) | Drives Y into high-impedance when HIGH; enables bus sharing and multi-driver contention management. |
| GND | Ground reference (0 V) | Primary return path for all internal logic and output current; must be low-impedance for noise immunity. |
| n.c. | No connect | Terminal 5 is internally unconnected - must remain floating or tied to GND per layout best practice; not usable as signal or power. |
| VCC | Positive supply | Supplies core logic and output stage; decoupling capacitor (100 nF) required within 3 mm of this pin for stable switching. |
| Y | 3-state buffered output | Non-inverted replica of A when OE = LOW; presents high-Z state when OE = HIGH - essential for shared-bus arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| Symmetrical output impedance | Ensures matched rise/fall times (tr/tf ≤ 3 ns) and minimal signal distortion on bidirectional traces. |
| Balanced propagation delays | tpLH ≈ tpHL (≤0.5 ns mismatch @ 5 V) - preserves pulse width integrity in clock distribution and strobe paths. |
| Wide supply voltage range | 2.0–5.5 V operation eliminates need for separate voltage regulators in multi-rail systems. |
| Overvoltage-tolerant inputs | Accepts 5.5 V inputs at A/OE while VCC = 1.8 V or 2.5 V - enables seamless 5 V-to-3.3 V or 5 V-to-1.8 V translation without external components. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level A - prevents destructive parasitic thyristor activation during transient overvoltage events. |
Applications
| Industrial PLC I/O Expansion | Microcontroller GPIO Buffering |
|---|---|
|
Use Scenario: Isolating and driving 24 V digital input signals into a 3.3 V microcontroller ADC or GPIO bank via optocoupler outputs. IC Role / Device Role: Level-translating buffer that accepts 5 V-tolerant optocoupler outputs and drives MCU inputs with precise VIH/VIL thresholds. Use Value: Eliminates discrete resistor-divider networks and ensures deterministic logic thresholds across temperature (-40 °C to +125 °C). |
Use Scenario: Expanding limited GPIO count on an ARM Cortex-M0+ MCU by adding parallel-controlled peripherals (e.g., SPI flash, EEPROM, sensors). IC Role / Device Role: Unidirectional 3-state buffer enabling time-multiplexed access to shared data/address lines. Use Value: Reduces PCB layer count by replacing discrete transistors or larger buffers; maintains signal integrity at 10–20 MHz toggle rates. |
| Legacy Bus Interface Bridge | Low-Power Sensor Hub Aggregation |
|
Use Scenario: Interfacing modern 3.3 V SoC UART or I²C peripherals with legacy 5 V RS-232 transceivers or EEPROMs. IC Role / Device Role: Voltage-domain translator with direction control via OE, supporting half-duplex serial communication. Use Value: Achieves interoperability without active level shifters - cuts BOM cost and board area by >40% vs. dual-supply solutions. |
Use Scenario: Aggregating outputs from multiple ultra-low-power environmental sensors (e.g., I²C temp/humidity) onto a single MCU interrupt line. IC Role / Device Role: Wired-OR logic buffer where sensor alert outputs drive A, and MCU controls OE to poll individual devices. Use Value: Enables wake-on-event functionality with <2 μA ICC standby current - extends battery life in portable IoT nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHC1G125GV,125 | Inverting buffer (A → Y̅); identical supply range, timing, and packaging (SOT753). | Requires logic inversion in system firmware or upstream logic; unsuitable where signal polarity must be preserved. | Select only if system-level inversion is acceptable or already compensated - avoids redesign of signal routing. |
| SN74LVC1G126DBVR | TTL-compatible inputs (VIH = 2.0 V min @ VCC = 3.3 V); slightly higher ICC (max 10 μA vs. 2 μA @ 5.5 V). | Better compatibility with legacy 5 V TTL outputs; less suitable for sub-2.5 V operation due to fixed VIH threshold. | Prefer when interfacing with older 5 V logic families; avoid in 1.8 V systems where AHC's scalable VIH provides superior noise margin. |
Compared with 74AHC1G126GF,132, the 74AHC1G125GV,125 trades polarity preservation for inversion capability, while SN74LVC1G126DBVR sacrifices supply scalability for stronger TTL input compatibility - making the AHC variant optimal for wide-voltage, polarity-critical, low-static-power designs.
Availability
74AHC1G126GF,132 is available at Aetrix Electronics and suitable for industrial automation, embedded sensor interfaces, and legacy protocol bridging requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74AHC1G126GF,132 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 74AHC1G126GF,132 belongs to Nexperia's AHC logic family - engineered for low dynamic power, rail-to-rail operation, and robust mixed-voltage interoperability in space- and power-constrained embedded systems.
FAQ
Can 74AHC1G126GF,132 operate with VCC = 1.8 V?
No. The absolute minimum supply voltage is 2.0 V per datasheet Table 6. At 1.8 V, VIH would fall below guaranteed switching thresholds (VIH min = 1.5 V @ VCC = 2.0 V), risking unreliable logic detection. For 1.8 V systems, consider LVC or AUP logic families instead.
Is pin 5 (n.c.) on SOT891 electrically isolated?
Yes. Pin 5 is explicitly designated "not connected" in Table 3 and confirmed as internal no-connect in the SOT891 package definition. It must not be soldered to any net; floating is acceptable, but grounding improves mechanical stability and EMI performance per Nexperia layout guidelines.
What is the maximum capacitive load for guaranteed timing specs?
The datasheet specifies timing (tpd, ten, tdis) at CL = 15 pF and CL = 50 pF. While operation beyond 50 pF is possible, propagation delay increases linearly (~0.02 ns/pF), and output rise/fall times degrade. For designs exceeding 50 pF, verify setup/hold margins with IBIS simulation or bench measurement.
Does 74AHC1G126GF,132 support hot-swap insertion?
No. The device lacks powered-off protection circuitry. Applying input voltage before VCC risks forward-biasing internal ESD diodes, potentially causing latch-up or parametric shift. Always sequence VCC before A/OE signals - use power-good monitoring or series resistors if hot-swap is required.
74AHC1G126GF,132 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- Package/Case:
- 6-XFDFN
- 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:
- 6-XSON, SOT891 (1x1)
74AHC1G126GF,132 FAQ
1.How can I place an order for 74AHC1G126GF,132 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G126GF,132 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 74AHC1G126GF,132 reliable?
The price and inventory of 74AHC1G126GF,132 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G126GF,132 is usually 5 days.
3.What payment methods are accepted for 74AHC1G126GF,132?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G126GF,132 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G126GF,132?
74AHC1G126GF,132 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G126GF,132 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 74AHC1G126GF,132?
For technical support, including 74AHC1G126GF,132 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G126GF,132 requirements.
6.How does Aetrix verify that 74AHC1G126GF,132 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G126GF,132 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 74AHC1G126GF,132 meets industry standards.
7.What is the process for return or replacement of 74AHC1G126GF,132?
All 74AHC1G126GF,132 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G126GF,132, 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 74AHC1G126GF,132 part is unused and in its original packaging.
Return procedure for 74AHC1G126GF,132:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHC1G126GF,132 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
