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NXP Semiconductors 74HC7266D,653
- Part No.:
- 74HC7266D,653
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC7266D,653.pdf
- Description:
- IC GATE XNOR 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,214
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Product details
Overview
74HC7266D,653 from Nexperia (formerly Philips Semiconductors) is a quad 2-input EXCLUSIVE-NOR gate IC in SO14 package, operating at 2–6 V supply, with typical propagation delay of 11 ns at 5 V and 15 pF load, delivering standard-output push-pull logic for combinational logic synthesis in digital control systems.
For engineers reviewing the 74HC7266D,653 datasheet, 74HC7266D,653 pinout, 74HC7266D,653 application, or 74HC7266D,653 equivalent, key selection criteria include verified EXNOR truth table compliance, SO14 pin compatibility with 74HC family, propagation delay vs. supply voltage dependency, and dynamic power dissipation modeling using CPD = 17 pF.
Technical Context
The 74HC7266D,653 implements four independent CMOS EXNOR gates with active push-pull outputs-no open-drain or three-state behavior. Each gate accepts two inputs (nA/nB) and produces one complementary-logic output (nY), fully compliant with JEDEC Standard No. 7A and TTL-level interface compatibility when operated within specified VI ranges.
It belongs to the high-speed Si-gate HC logic family, with input thresholds referenced to VCC (VI = GND to VCC), static current draw categorized as SSI, and dynamic power modeled via CPD = 17 pF per gate-enabling accurate µW-level PD estimation across varying fi, fo, CL, and VCC conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input EXCLUSIVE-NOR (XNOR); outputs HIGH only when both inputs match (L/L or H/H) |
| Supply Voltage Range | 2.0 V to 6.0 V; supports mixed-voltage system interfacing and battery-powered logic |
| Propagation Delay (tPHL/tPLH) | 11 ns typical at VCC = 5 V, CL = 15 pF; defines maximum clock/data rate for synchronous logic chains |
| Input Capacitance (CI) | 3.5 pF per input; limits fan-out loading and high-frequency signal integrity degradation |
| Power Dissipation Cap. (CPD) | 17 pF per gate; enables precise dynamic power calculation: PD = CPD × VCC² × fi + Σ(CL × VCC² × fo) |
| Output Type | Active push-pull; provides rail-to-rail logic swing without external pull-ups or level shifters |
| Operating Temperature | −40 °C to +125 °C; qualified for industrial and automotive under-hood environments |
Pinout & Package
74HC7266D,653 is housed in a 14-pin small-outline (SO14) plastic package per JEDEC MS-012, with 1.27 mm pitch, body width 3.9 mm, and lead finish matte tin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8, 12 | Input A (1A–4A) | First data input per gate; referenced to VCC for valid HIGH/LOW recognition |
| 2, 6, 9, 13 | Input B (1B–4B) | Second data input per gate; must meet VI = GND to VCC for guaranteed switching |
| 3, 4, 10, 11 | Output Y (1Y–4Y) | Push-pull XNOR result; sinks/source up to ±5.2 mA at VCC = 4.5 V |
| 7 | GND | Ground reference for all internal circuitry and I/O; requires low-impedance PCB return path |
| 14 | VCC | Positive supply rail; decoupling capacitor (100 nF) recommended adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 7A Compliance | Ensures interoperability with legacy LSTTL systems without level-shifting circuitry |
| Standard Output Drive | Guarantees ≥4 mA sink/source at VCC = 4.5 V, enabling direct fan-out to 10+ 74HC inputs |
| Low Dynamic Power | CPD = 17 pF allows sub-mW operation at 1 MHz with 50 pF load and 5 V supply |
| Wide Temp Range Support | Specified from −40 °C to +125 °C, supporting engine-control and motor-drive applications |
| Si-Gate CMOS Process | Delivers ESD tolerance >2 kV (HBM), low static current (<1 µA), and noise-immune threshold design |
Applications
| Motor Control Logic | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Detecting direction reversal in dual-channel quadrature encoder signals by comparing phase-A and phase-B states. IC Role / Device Role / Timing Role: 74HC7266D,653 performs real-time XNOR on each pair to generate synchronized enable/disable pulses for H-bridge drivers. Use Value: Eliminates need for microcontroller GPIO polling; reduces latency to <11 ns per comparison with deterministic timing. | Use Scenario: Validating redundant sensor inputs (e.g., pressure + temperature) before activating safety interlocks in machinery. IC Role / Device Role / Timing Role: 74HC7266D,653 acts as coincidence detector-output HIGH only when both sensors agree, rejecting single-point failures. Use Value: Provides hardware-level fault masking without firmware overhead or watchdog dependencies. |
| Digital Audio Clock Synchronization | Legacy Bus Interface Translation |
Use Scenario: Aligning I²S bit-clock and word-select edges in audio codec interfaces where phase matching is critical. IC Role / Device Role / Timing Role: 74HC7266D,653 compares clock and sync edges to generate glitch-free enable strobes for FIFO control. Use Value: Achieves sub-ns edge alignment margin using propagation delay matching across gates in same package. | Use Scenario: Bridging 5 V TTL control lines to 3.3 V FPGA I/O banks while preserving logic polarity and timing integrity. IC Role / Device Role / Timing Role: 74HC7266D,653 serves as bidirectional level-tolerant XNOR gate, accepting 0–5 V inputs and driving 3.3 V–compatible outputs. Use Value: Avoids discrete resistor dividers or dedicated level translators, reducing BOM count and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EXCLUSIVE-NOR logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC7266DR | Same logic function and AC/DC specs; SO14 package but TI's marking and tape/reel packaging | Identical pinout and timing; validated for TI-specific qualification flow (AEC-Q100 Grade 2 optional) | Select for TI-sourced supply chains or automotive-qualified variants requiring PPAP documentation |
| MC74HC7266ADTR2G | ON Semiconductor variant; identical SO14 footprint and 2–6 V operation; tPHL/tPLH = 12 ns typical at 5 V | Same functional behavior; minor propagation delay variance acceptable in non-critical timing paths | Choose when sourcing from ON Semi distribution channels or requiring extended temperature screening beyond standard spec |
Compared with SN74HC7266DR and MC74HC7266ADTR2G, the 74HC7266D,653 offers identical logic behavior and SO14 mechanical compatibility, but differs in manufacturer-specific reliability testing, tape-and-reel configuration, and minor parametric tolerances-making it suitable for cost-sensitive industrial designs where full automotive qualification is not required.
Availability
74HC7266D,653 is available at Aetrix Electronics and suitable for motor control logic, industrial PLC input conditioning, digital audio clock synchronization, and legacy bus interface translation requiring stable component supply across long-lifecycle embedded programs.
Supply support for 74HC7266D,653 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 specializing in high-volume, high-reliability logic, analog, and discrete components derived from Philips' legacy IC business.
The 74HC7266D,653 belongs to Nexperia's 74HC logic family-designed for robust, low-power, pin-compatible replacements of legacy TTL in industrial automation, consumer electronics, and automotive subsystems.
FAQ
What logic function does the 74HC7266D,653 implement?
The 74HC7266D,653 implements four independent 2-input EXCLUSIVE-NOR (XNOR) gates. Its truth table outputs HIGH only when both inputs are identical (L/L or H/H). This function is used for equality detection, parity generation, and phase comparison-core operations in digital control and synchronization circuits. Each gate operates independently with no internal coupling between sections.
Is the 74HC7266D,653 pin compatible with 74LS7266 or other TTL equivalents?
Yes, the 74HC7266D,653 is pin compatible with 74LS7266 and other LSTTL quad XNOR devices. It maintains identical SO14 pinout and logic symbol orientation. However, its CMOS input thresholds (VI = GND to VCC) differ from TTL's fixed 2.0 V threshold-requiring verification of source driver compatibility when interfacing with older TTL outputs.
What is the maximum operating frequency supported by the 74HC7266D,653?
The 74HC7266D,653 does not specify a maximum clock frequency directly, but its typical propagation delay of 11 ns at 5 V and 15 pF implies usable data rates up to ~45 MHz in non-critical paths. For reliable synchronous operation, designers should apply setup/hold margins and limit toggle rates to ≤1/(2 × tPHL) ≈ 45 MHz-subject to actual load capacitance and supply stability.
Does the 74HC7266D,653 support 3.3 V operation?
Yes, the 74HC7266D,653 is fully specified for 2.0 V to 6.0 V operation, including 3.3 V nominal supply. At VCC = 3.3 V, propagation delay increases to ~18 ns (typical), and output drive strength scales proportionally. Input thresholds remain ratiometric (VIH ≈ 0.7 × VCC), ensuring clean logic interpretation in mixed-voltage systems.
Can the 74HC7266D,653 be used in automotive applications?
The 74HC7266D,653 is qualified for operation from −40 °C to +125 °C and meets JEDEC 7A standards, making it suitable for under-hood and cabin automotive subsystems. While not AEC-Q200 certified out-of-box, Nexperia offers automotive-grade versions (e.g., 74HC7266DB,118) with full PPAP support-consult Aetrix for qualified alternatives if automotive qualification is mandatory.
74HC7266D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- XNOR (Exclusive NOR)
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 0.5V ~ 1.8V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 20ns @ 6V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HC7266D,653 FAQ
1.How can I place an order for 74HC7266D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC7266D,653 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 74HC7266D,653 reliable?
The price and inventory of 74HC7266D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC7266D,653 is usually 5 days.
3.What payment methods are accepted for 74HC7266D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC7266D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC7266D,653?
74HC7266D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC7266D,653 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 74HC7266D,653?
For technical support, including 74HC7266D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC7266D,653 requirements.
6.How does Aetrix verify that 74HC7266D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC7266D,653 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 74HC7266D,653 meets industry standards.
7.What is the process for return or replacement of 74HC7266D,653?
All 74HC7266D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC7266D,653, 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 74HC7266D,653 part is unused and in its original packaging.
Return procedure for 74HC7266D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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