Texas Instruments SN74AHC1G86DCKR
- Part No.:
- SN74AHC1G86DCKR
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
SN74AHC1G86DCKR.pdf
- Description:
- IC GATE XOR 1CH 2-INP SC70-5
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SN74AHC1G86DCKR from Texas Instruments is a single 2-input exclusive-OR (XOR) gate in SC-70 (DCK) 5-pin package, operating from 2 V to 5.5 V supply, with 8 ns max propagation delay at 5 V, ±8 mA output drive, and Schmitt-trigger inputs for noise immunity in low-speed digital interfaces. It performs Y = A ⊕ B logic in positive logic and is used in programmable logic controllers and telecom infrastructure for signal-level logic inversion or parity generation.
For engineers reviewing the SN74AHC1G86DCKR datasheet, SN74AHC1G86DCKR pinout, SN74AHC1G86DCKR application, or SN74AHC1G86DCKR equivalent, key selection criteria include its 5-pin SC-70 footprint, rail-to-rail input tolerance up to 5.5 V, low ICC of 10 µA max, Schmitt-trigger hysteresis, and compatibility with 3.3 V/5 V mixed-signal systems requiring deterministic XOR behavior without external pull-ups.
Technical Context
The SN74AHC1G86DCKR implements a CMOS-based positive-logic XOR function with true/complementary output behavior: when one input is low, the other passes through unaltered; when one input is high, the other is inverted. Its Schmitt-trigger inputs provide hysteresis (typical 0.3 V at 3.3 V), enabling robust operation with slow-rising signals.
It supports down-voltage translation - inputs accept up to 5.5 V regardless of VCC (2–5.5 V), allowing interfacing between higher-voltage peripherals and lower-voltage logic domains. Output drive is balanced (±8 mA at 5 V), with propagation delays tightly specified across temperature (–40°C to 125°C) and load (15 pF/50 pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 5.5 V - enables direct use in both 3.3 V and 5 V systems without level shifters |
| Max Propagation Delay | 8 ns at 5 V, CL = 15 pF - ensures timing predictability in high-speed control paths |
| Output Drive | ±8 mA at 5 V - sufficient to drive multiple 74AHC inputs or small capacitive loads |
| Input Hysteresis | Yes, Schmitt-trigger - rejects noise on slow edges; eliminates need for external RC filtering |
| Quiescent Current | 10 µA max - supports ultra-low-power standby modes in battery-backed systems |
| ESD Rating | ±2000 V HBM - meets industrial handling requirements without additional protection |
| Operating Temp | –40°C to +125°C - qualified for automotive under-hood and industrial motor-control environments |
Pinout & Package
SC-70 (DCK) 5-pin surface-mount package: 2.0 mm × 2.1 mm body size, 0.65 mm pitch, 0.6 mm max height. Designed for high-density PCB layouts with thermal resistance RθJA = 289.2°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Input A | First XOR operand; accepts 0–5.5 V regardless of VCC - enables voltage translation |
| 2 (B) | Input B | Second XOR operand; Schmitt-triggered for noise margin on slow-rising signals |
| 3 (GND) | Ground | Reference return path; must be low-impedance to maintain switching integrity |
| 4 (Y) | Output Y | XOR result (Y = A ⊕ B); push-pull CMOS output with symmetrical rise/fall drive |
| 5 (VCC) | Power Supply | Single supply rail; bypass capacitor (0.1 µF) required adjacent to pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Accepts up to 5.5 V at A/B pins even when VCC = 2 V - simplifies mixed-voltage interconnect |
| Balanced output drive | ±8 mA at 5 V ensures matched rise/fall times and reduces EMI in routing-sensitive layouts |
| Low dynamic power | 18 pF typical power dissipation capacitance - minimizes switching current in high-frequency toggle applications |
| Wide temperature range | Specified from –40°C to +125°C - supports deployment in motor drives and industrial PLCs |
Applications
| Programmable Logic Controllers | Telecom Infrastructure |
|---|---|
Use Scenario: Detecting state changes in discrete I/O modules where two sensor inputs must be compared for differential activation. IC Role / Device Role / Timing Role: Performs real-time XOR comparison to generate edge-triggered interrupts on input transitions. Use Value: Eliminates need for microcontroller polling; leverages hardware-level logic to reduce CPU load and latency. | Use Scenario: Generating parity bits for error detection in serial data links between baseband processors and RF transceivers. IC Role / Device Role / Timing Role: Implements odd-parity encoding by XOR-ing data bits before transmission. Use Value: Provides deterministic, zero-latency parity generation independent of firmware execution timing. |
| Wireless Headsets | Motor Drives and Controls |
Use Scenario: Synchronizing audio codec clock domains where master and slave clocks require phase alignment verification. IC Role / Device Role / Timing Role: Compares rising edges of two clock signals to detect misalignment via XOR output pulse width. Use Value: Enables low-cost, analog-free clock skew monitoring without dedicated PLL circuitry. | Use Scenario: Monitoring complementary PWM outputs in half-bridge gate drivers to prevent shoot-through conditions. IC Role / Device Role / Timing Role: Outputs logic-high only when high-side and low-side control signals differ - indicating valid active-low/active-high pair. Use Value: Adds hardware-level safety interlock that responds within 8 ns, faster than MCU-based monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar XOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G86DCKR | Lower VCC range (1.65–5.5 V); 3.5 ns tPD at 3.3 V; no Schmitt-trigger inputs | Better speed in 3.3 V systems but less noise immunity on slow edges | Select when fastest propagation is critical and input edges are clean; avoid in noisy industrial environments |
| MC74VHC1G86DTT1G | Same 2–5.5 V range; 7.5 ns tPD at 5 V; Schmitt-trigger inputs; different SC-70 marking and MSL rating | Functionally identical XOR behavior with comparable thermal performance (RθJA = 290°C/W) | Drop-in alternative if TI supply constraints exist; verify tape-and-reel packaging compatibility for automated assembly |
Compared with SN74AHC1G86DCKR, SN74LVC1G86DCKR trades Schmitt-trigger noise immunity for higher speed in 3.3 V domains, while MC74VHC1G86DTT1G matches its noise-hardened interface and timing profile but originates from a different manufacturing ecosystem - making it suitable for dual-sourcing strategies without layout change.
Availability
SN74AHC1G86DCKR is available at Aetrix Electronics and suitable for programmable logic controllers, telecom infrastructure, and motor drives requiring stable component supply, long-term production continuity, and guaranteed RoHS-compliant sourcing.
Supply support for SN74AHC1G86DCKR 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 50 years of innovation in logic, power management, and signal chain solutions.
The SN74AHC1G86DCKR belongs to the AHC logic family - designed for low-power, high-noise-immunity applications in industrial automation, communications equipment, and consumer electronics where reliable single-gate functionality is essential.
FAQ
What logic function does the SN74AHC1G86DCKR implement?
The SN74AHC1G86DCKR implements a single 2-input exclusive-OR (XOR) gate, performing Y = A ⊕ B in positive logic. Its truth table yields low output when inputs match (A = B) and high output when they differ. This behavior supports parity generation, signal comparison, and controlled inversion - all verified in the TI SCLS323P datasheet Section 7.1 and Table 7-1.
Does the SN74AHC1G86DCKR support voltage translation between different logic families?
Yes, the SN74AHC1G86DCKR supports down-voltage translation: its inputs tolerate up to 5.5 V regardless of VCC (2–5.5 V), allowing connection to 5 V peripherals while operating from a 3.3 V or 2.5 V supply. This capability is explicitly documented in Section 7.3 and Section 8.1 of the official datasheet.
What is the maximum operating temperature for the SN74AHC1G86DCKR?
The SN74AHC1G86DCKR is rated for continuous operation from –40°C to +125°C ambient temperature, as confirmed in Section 5.3 (Recommended Operating Conditions) and Section 11 (Orderable Information) of the TI SCLS323P datasheet. This makes it suitable for under-hood automotive and industrial motor-control applications.
Is a bypass capacitor required for stable operation of the SN74AHC1G86DCKR?
Yes, a 0.1 µF ceramic bypass capacitor is required between VCC and GND, placed as close as possible to pins 5 and 3 respectively. This is mandated in Section 8.3 (Power Supply Recommendations) to suppress supply noise and prevent output instability - especially during fast transitions.
Can unused inputs on the SN74AHC1G86DCKR be left floating?
No, unused inputs must never be left floating. All inputs (A and B) must be tied to either VCC or GND to ensure defined logic states and prevent increased ICC or erratic switching. This requirement is explicitly stated in Section 5.3 Note (1) and Section 8.4.1 of the TI datasheet.
SN74AHC1G86DCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- XOR (Exclusive OR)
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- Schmitt Trigger Input
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V ~ 1.65V
- Input Logic Level - High:
- 1.5V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 8.8ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
SN74AHC1G86DCKR FAQ
1.How can I place an order for SN74AHC1G86DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC1G86DCKR 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 SN74AHC1G86DCKR reliable?
The price and inventory of SN74AHC1G86DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC1G86DCKR is usually 5 days.
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5.How can I obtain technical support or documentation for SN74AHC1G86DCKR?
For technical support, including SN74AHC1G86DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC1G86DCKR requirements.
6.How does Aetrix verify that SN74AHC1G86DCKR is sourced from the original manufacturer or authorized distributors?
All SN74AHC1G86DCKR 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 SN74AHC1G86DCKR meets industry standards.
7.What is the process for return or replacement of SN74AHC1G86DCKR?
All SN74AHC1G86DCKR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC1G86DCKR, 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 SN74AHC1G86DCKR part is unused and in its original packaging.
Return procedure for SN74AHC1G86DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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