My Inquiry
My Account
STMicroelectronics 74ACT86TTR
- Part No.:
- 74ACT86TTR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74ACT86TTR.pdf
- Description:
- IC GATE XOR 4CH 2-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,574
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ACT86TTR from STMicroelectronics is a quad 2-input exclusive-OR (XOR) gate in TSSOP-14 package, operating at 4.5–5.5 V with 5.0 ns typical propagation delay, 24 mA output drive, and TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V). It interfaces high-speed CMOS systems with TTL/NMOS logic in digital signal routing and parity generation.
For engineers reviewing the 74ACT86TTR datasheet, 74ACT86TTR pinout, 74ACT86TTR application, or 74ACT86TTR equivalent, key selection criteria include symmetrical tPLH/tPHL timing, 50 Ω transmission line driving capability, ESD immunity (2 kV), and guaranteed operation across –55°C to +125°C industrial temperature range.
Technical Context
The 74ACT86TTR implements four independent XOR logic functions using sub-micron C2MOS technology with buffered outputs, delivering high noise immunity and stable switching. Its three-stage internal architecture includes input protection diodes, logic core, and push-pull output stage.
It supports direct interfacing between mixed-voltage logic families due to TTL-compatible VIH/VIL thresholds and rail-to-rail VOH/VOL performance under 24 mA load. Propagation delays are balanced (tPLH ≅ tPHL), and dynamic output current exceeds ±50 mA for transient line driving.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V TTL/CMOS rails and tolerance to supply ripple. |
| tPD (Typ.) | 5.0 ns at VCC = 5 V - Enables use in >100 MHz clock-domain boundary logic and fast data path arbitration. |
| IOL / IOH (Min.) | 24 mA - Drives 50 Ω transmission lines directly without external termination or buffer stages. |
| VIH / VIL | 2.0 V (min) / 0.8 V (max) - Guarantees reliable recognition of TTL-level inputs across full temperature range. |
| ESD Immunity | 2 kV HBM - Protects against handling-induced discharge without external TVS components. |
| Operating Temp | –55°C to +125°C - Qualified for under-hood automotive, industrial control, and aerospace subsystems. |
| ICC (Max.) | 2 µA at TA = 25°C - Enables ultra-low static power in battery-backed or always-on monitoring circuits. |
Pinout & Package
TSSOP-14 package: 4.9 mm × 6.4 mm body, 0.65 mm pitch, 0.6 mm nominal height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | Input A (1A–4A) | First operand per XOR gate; accepts TTL/CMOS logic levels with 5 pF input capacitance. |
| 2, 5, 10, 13 | Input B (1B–4B) | Second operand per XOR gate; electrically identical to Input A with same VIH/VIL thresholds. |
| 3, 6, 8, 11 | Output Y (1Y–4Y) | Exclusive-OR result (A ⊕ B); delivers symmetrical 24 mA sink/source into 50 Ω loads. |
| 7 | GND | Reference return for all I/O and internal logic; requires low-inductance connection to minimize ground bounce. |
| 14 | VCC | Positive supply input; decoupling capacitor (100 nF) recommended within 5 mm of pin for AC noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Quad XOR logic density | Four independent 2-input gates in single TSSOP-14 - reduces board area vs discrete gate arrays. |
| Symmetrical propagation delay | tPLH ≅ tPHL - eliminates duty-cycle distortion in clocked XOR applications like phase comparators. |
| 50 Ω line driving | Guaranteed at CL = 50 pF, RL = 500 Ω - enables point-to-point or stubbed trace routing without impedance mismatch. |
| Latch-up immunity | Improved over standard CMOS - withstands transient overvoltage events per JEDEC JESD78. |
| Input hysteresis margin | VIH − VIL = 1.2 V at VCC = 5 V - provides robust noise margin against crosstalk in dense PCB layouts. |
Applications
| Parity Generator/Checker | Digital Signal Routing |
|---|---|
Use Scenario: Generating or verifying even/odd parity bits across 4-bit data buses in memory controllers and UART interfaces. IC Role / Device Role / Timing Role: Performs bitwise XOR aggregation across parallel data lanes with matched tPLH/tPHL to preserve setup/hold timing. Use Value: Eliminates need for discrete resistor networks or additional logic stages while maintaining <5 ns critical path delay. | Use Scenario: Selecting between two digital signal sources (e.g., primary/backup sensor inputs) in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Acts as controlled signal switch via XOR enable logic, with deterministic 5 ns latency and no metastability risk. Use Value: Provides glitch-free source selection without clock domain crossing circuitry or FPGA resource usage. |
| Phase Comparator | Test Equipment Logic Analyzer |
Use Scenario: Detecting zero-crossing alignment between reference and feedback clocks in PLL-based power supply controllers. IC Role / Device Role / Timing Role: Outputs high only when inputs differ - used as edge-sensitive phase error detector with nanosecond resolution. Use Value: Delivers sub-10 ns timing resolution without analog comparators or high-speed ADC overhead. | Use Scenario: Capturing asynchronous trigger conditions (e.g., "A AND NOT B") in portable logic analyzers with limited FPGA I/O. IC Role / Device Role / Timing Role: Implements combinational trigger logic offloaded from main processor, reducing firmware complexity. Use Value: Enables real-time hardware-level triggering at full system clock speed with deterministic 5 ns response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad XOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT86DBR | Same logic function, SOIC-14 package; 0.05 mm larger pitch (1.27 mm vs 0.65 mm); slightly higher ICC (4 µA max). | Preferred where manual soldering or legacy footprint compatibility is required; not suitable for fine-pitch automated assembly. | Select for through-hole prototyping or boards with existing SOIC-14 land patterns. |
| 74LVC86GW | Lower VCC range (1.65–5.5 V); 3.3 V optimized; tPD = 4.2 ns (typ); 24 mA drive retained; smaller XSON-14 package (2.5 × 3.0 mm). | Better suited for mixed-voltage 3.3 V/5 V systems; lacks guaranteed 5 V operation at full temperature range. | Select when designing for dual-supply environments or space-constrained PCBs requiring <3 mm² footprint. |
Compared with SN74ACT86DBR and 74LVC86GW, the 74ACT86TTR uniquely balances 5 V TTL interoperability, industrial temperature support, and TSSOP miniaturization-making it optimal for automotive body control modules and ruggedized industrial gateways where both voltage compatibility and thermal reliability are non-negotiable.
Availability
74ACT86TTR is available at Aetrix Electronics and suitable for parity generation, phase comparison, digital signal routing, and test equipment trigger logic requiring stable component supply across extended temperature ranges.
Supply support for 74ACT86TTR 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, designing and manufacturing microcontrollers, power ICs, sensors, and logic devices for automotive, industrial, and consumer markets.
The 74ACT series targets high-speed, low-power TTL-compatible logic applications, emphasizing robustness in harsh environments and seamless integration across legacy and modern digital systems.
FAQ
Is the 74ACT86TTR pin-compatible with standard 74LS86?
Yes - it is functionally and pin-compatible with 74LS86, 74HC86, and 74HCT86. All share identical pin numbering (1A–4A, 1B–4B, 1Y–4Y, GND, VCC) and truth table behavior. However, 74ACT86TTR offers faster propagation (5 ns vs 15–20 ns), higher drive strength (24 mA vs 8 mA), and wider temperature range (–55°C to +125°C).
Does the 74ACT86TTR require external pull-up or pull-down resistors on unused inputs?
No - unused inputs may be tied directly to VCC or GND. The device features low input leakage (±1 µA max) and defined VIH/VIL thresholds, eliminating floating input risk. Pull resistors are unnecessary and would increase power consumption and board area without benefit.
Can the 74ACT86TTR drive a 50 Ω coaxial cable directly?
Yes - its symmetrical 24 mA output drive and 50 Ω transmission line driving capability are explicitly characterized per datasheet (CL = 50 pF, RL = 500 Ω, incident wave switching). For sustained 50 Ω loads, ensure trace impedance matches and use series termination at source if reflections occur beyond 10 cm length.
What is the maximum input rise/fall time supported at VCC = 5 V?
The datasheet specifies dt/dv ≤ 8 ns/V for VCC = 4.5–5.5 V, meaning maximum allowable input transition time is 40 ns (5 V × 8 ns/V) to avoid increased propagation delay or false switching. For clean 5 ns tPD operation, keep input edges ≤ 3 ns (as tested in AC characterization).
74ACT86TTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74ACT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 9.5ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74ACT86TTR FAQ
1.How can I place an order for 74ACT86TTR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ACT86TTR 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 74ACT86TTR reliable?
The price and inventory of 74ACT86TTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT86TTR is usually 5 days.
3.What payment methods are accepted for 74ACT86TTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT86TTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ACT86TTR?
74ACT86TTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ACT86TTR 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 74ACT86TTR?
For technical support, including 74ACT86TTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT86TTR requirements.
6.How does Aetrix verify that 74ACT86TTR is sourced from the original manufacturer or authorized distributors?
All 74ACT86TTR 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 74ACT86TTR meets industry standards.
7.What is the process for return or replacement of 74ACT86TTR?
All 74ACT86TTR units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT86TTR, 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 74ACT86TTR part is unused and in its original packaging.
Return procedure for 74ACT86TTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ACT86TTR Tags
-
SN74LVC1G14DBVR
Texas Instruments
-
SN74LVC1G14DCKR
Texas Instruments
-
SN74AHC1G14DBVR
Texas Instruments
-
SN74LVC1G08DBVR
Texas Instruments
-
SN74LVC1G08DCKR
Texas Instruments
-
SN74LVC1G32DCKR
Texas Instruments
-
SN74LVC1G04DBVR
Texas Instruments
.jpg)
-
74LVC1G08GW,125
Nexperia USA Inc.
-
SN74LVC1G04DCKR
Texas Instruments
-
SN74AHC1G08DBVR
Texas Instruments
-
SN74LVC1G32DBVR
Texas Instruments
-
SN74AHCT1G08DBVR
Texas Instruments
Tech Hub
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
