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STMicroelectronics 74VHCT86AMTR
- Part No.:
- 74VHCT86AMTR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74VHCT86AMTR.pdf
- Description:
- IC GATE XOR 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,477
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Product details
Overview
74VHCT86AMTR from STMicroelectronics is a quad 2-input exclusive-OR gate in SO-14 package, operating at 4.5–5.5 V, with 5.5 ns typical propagation delay, ±8 mA output drive, and TTL-compatible input thresholds (VIH ≥ 2 V, VIL ≤ 0.8 V). It enables logic-level translation between 5 V and 3 V systems in digital control and bus arbitration circuits.
For engineers reviewing the 74VHCT86AMTR datasheet, 74VHCT86AMTR pinout, 74VHCT86AMTR application, or 74VHCT86AMTR equivalent, key selection criteria include symmetrical output impedance, power-down input/output protection, latch-up immunity, low-noise operation (VOLP ≤ 0.8 V), and compatibility with legacy 74-series logic families.
Technical Context
The 74VHCT86AMTR implements four independent XOR gates using sub-micron C2MOS technology, supporting rail-to-rail input tolerance (−0.5 V to +7 V) regardless of VCC. Its inputs accept 0–7 V signals, enabling robust interfacing across mixed-voltage domains without external level shifters.
It features balanced tPLH/tPHL propagation delays, 2 µA max ICC at 25°C, and integrated ESD protection (2 kV HBM). All inputs and outputs are protected against static discharge and transient overvoltage, with dedicated power-down protection that maintains high-impedance states during VCC loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 5.5 ns typical at VCC = 5 V, CL = 15 pF - ensures timing-critical synchronous logic paths meet setup/hold margins |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V TTL and CMOS rails, not suitable for 3.3 V-only operation |
| Output Drive Strength | ±8 mA min (IOH/IOL) - sufficient to drive multiple 74-series loads or short PCB traces without buffering |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - guarantees reliable recognition of TTL output levels from legacy drivers |
| Quiescent Current | 2 µA max at TA = 25°C - enables low-static-power operation in battery-backed or standby-control logic |
| ESD Immunity | 2 kV HBM - meets industrial IEC 61000-4-2 Level 2 requirements for board-level handling robustness |
| Dynamic Noise Peak | VOLP ≤ 0.8 V at CL = 50 pF - limits ground bounce and crosstalk in dense multi-gate layouts |
Pinout & Package
74VHCT86AMTR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with 1.27 mm pitch, tape-and-reel packaging (MTR suffix), and JEDEC MS-012AC compliant dimensions (D = 8.55–8.75 mm, E = 3.8–4.0 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | 1A–4A | First input per XOR gate - accepts 0–7 V signals independent of VCC, enabling hot-swap and mixed-voltage interface |
| 2, 5, 10, 13 | 1B–4B | Second input per XOR gate - TTL-compatible thresholds allow direct connection to 74LS/74F outputs |
| 3, 6, 8, 11 | 1Y–4Y | Exclusive-OR output per gate - symmetrical drive supports bidirectional bus arbitration and parity generation |
| 7 | GND | Digital ground reference - must be decoupled locally with 100 nF ceramic capacitor near pin 7 |
| 14 | VCC | Positive supply - requires 4.5–5.5 V; internal protection prevents damage during brown-out or reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Power-down protection | Inputs and outputs remain high-impedance during VCC = 0 V - prevents back-driving and signal contention in powered-down subsystems |
| Rail-tolerant inputs | Accept −0.5 V to +7 V regardless of VCC - eliminates need for external clamping diodes in mixed-supply interfaces |
| Matched propagation delays | tPLH ≈ tPHL - ensures minimal duty-cycle distortion in clocked XOR applications like phase comparators |
| Latch-up immunity | Improved vs. standard VHCT - withstands transient current injection per JEDEC JESD78 Class II without functional failure |
| Low dynamic noise | VOLP ≤ 0.8 V at 50 pF load - reduces simultaneous switching noise in multi-gate fanout configurations |
Applications
| Parity Generator | Bus Arbitration Logic |
|---|---|
|
Use Scenario: Generating even/odd parity bits for 8-bit data buses in industrial controllers and memory subsystems. IC Role / Device Role / Timing Role: Four XOR gates compute bit-wise parity across two 4-bit nibbles; propagation delay < 6 ns ensures alignment with 20 MHz bus clocks. Use Value: Enables real-time error detection without external logic, leveraging TTL-compatible inputs to interface directly with 74LS244 transceivers. |
Use Scenario: Resolving master contention on shared I²C or custom parallel control buses where multiple microcontrollers assert control lines. IC Role / Device Role / Timing Role: XOR-based handshake comparator detects mismatched bus states; symmetrical tPLH/tPHL avoids metastability in arbitration cycles. Use Value: Eliminates need for microcontroller firmware polling by providing hardware-level conflict resolution with < 10 ns worst-case response. |
| Phase Comparator | Logic-Level Translation |
|
Use Scenario: Converting phase difference between two 5 V clock signals into a duty-cycle-modulated error signal for PLL feedback loops. IC Role / Device Role / Timing Role: Acts as analog-like phase detector; matched delays ensure linear phase-to-voltage transfer function up to 100 MHz. Use Value: Provides deterministic zero-crossing detection with no external passive components, reducing BOM count and layout area. |
Use Scenario: Interfacing 5 V microcontroller GPIOs to 3 V peripheral ICs (e.g., ADCs, sensors) in mixed-voltage embedded systems. IC Role / Device Role / Timing Role: Bidirectional voltage translator via input threshold compatibility; rail-tolerant inputs accept 3 V signals safely at 5 V VCC. Use Value: Avoids dedicated level-shifter ICs while maintaining full-speed operation (tPD < 8 ns) and ESD-hardened I/O. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar XOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC86APWR | 3.3 V only (1.65–3.6 V), 3.8 ns tPD, lower drive (±24 mA), no rail-tolerant inputs | Requires level-shifting for 5 V systems; unsuitable for hot-swap or mixed-rail environments | Select when system operates exclusively at 3.3 V and speed > 5 ns is required |
| 74HC86N | Wider VCC range (2–6 V), 18 ns tPD, no power-down protection, 2 kV ESD only on inputs | Lacks output protection during VCC loss; higher propagation delay limits use in >10 MHz clock domains | Select for cost-sensitive, non-critical 5 V designs where power sequencing is controlled and speed is secondary |
Compared with SN74LVC86APWR and 74HC86N, the 74VHCT86AMTR uniquely combines 5 V TTL compatibility, rail-tolerant I/O, and power-down safety-making it the only choice for robust 5 V bus arbitration and legacy system upgrades requiring zero-modification interface logic.
Availability
74VHCT86AMTR is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics modules, and telecom line-card logic requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for 74VHCT86AMTR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in automotive, industrial, and power management ICs, with vertical manufacturing and broad analog/mixed-signal portfolio.
The VHCT logic family targets 5 V system upgrades needing TTL compatibility, low power, and enhanced robustness-designed specifically for industrial control, instrumentation, and legacy equipment modernization.
FAQ
Can 74VHCT86AMTR operate with a 3.3 V supply?
No. The 74VHCT86AMTR is specified only for 4.5–5.5 V operation per its Recommended Operating Conditions table. At 3.3 V, VIH/VIL thresholds become undefined, output drive falls below specification, and AC performance degrades beyond datasheet limits. Use SN74LVC86 instead for 3.3 V systems.
Does it support hot-plug insertion when VCC is off?
Yes. Inputs and outputs feature power-down protection: they present high-impedance states with no leakage path when VCC = 0 V, and tolerate −0.5 V to +7 V on any pin regardless of supply state-enabling safe insertion into live backplanes or partially powered systems.
What is the maximum capacitive load it can drive reliably?
The device is characterized up to 50 pF (per AC specs), with 15 pF used for tPD = 5.5 ns. Driving >50 pF increases propagation delay nonlinearly and raises VOLP; for >50 pF loads, add series termination or buffer stages to maintain signal integrity and noise margins.
How does its ESD protection compare to standard 74HC86?
74VHCT86AMTR provides 2 kV HBM ESD immunity on all pins (inputs and outputs), verified per JEDEC JS-001. Standard 74HC86 typically specifies 2 kV on inputs only; output ESD robustness is uncharacterized and lower-making VHCT preferred for board-level handling and field-replaceable modules.
74VHCT86AMTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74VHCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- XOR (Exclusive OR)
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 8.5ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74VHCT86AMTR FAQ
1.How can I place an order for 74VHCT86AMTR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT86AMTR 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 74VHCT86AMTR reliable?
The price and inventory of 74VHCT86AMTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT86AMTR is usually 5 days.
3.What payment methods are accepted for 74VHCT86AMTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT86AMTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT86AMTR?
74VHCT86AMTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT86AMTR 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 74VHCT86AMTR?
For technical support, including 74VHCT86AMTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT86AMTR requirements.
6.How does Aetrix verify that 74VHCT86AMTR is sourced from the original manufacturer or authorized distributors?
All 74VHCT86AMTR 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 74VHCT86AMTR meets industry standards.
7.What is the process for return or replacement of 74VHCT86AMTR?
All 74VHCT86AMTR units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT86AMTR, 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 74VHCT86AMTR part is unused and in its original packaging.
Return procedure for 74VHCT86AMTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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