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Nexperia USA Inc. 74HC368D,653
- Part No.:
- 74HC368D,653
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC368D,653.pdf
- Description:
- IC BUFFER INVERT 6V 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,273
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Product details
Overview
74HC368D,653 from Nexperia is a hex inverting 3-state buffer/line driver in SO16 package, operating from 2.0 V to 6.0 V, with CMOS-level inputs, ±35 mA output drive, and propagation delay of 9 ns at VCC = 6.0 V. It enables bidirectional bus control in digital logic systems such as industrial I/O expanders and microcontroller peripheral interfaces.
For engineers reviewing the 74HC368D,653 datasheet, 74HC368D,653 pinout, 74HC368D,653 application, or 74HC368D,653 equivalent, key selection criteria include its inverting 3-state logic behavior, SO16 thermal derating (12.4 mW/K above 110 °C), VIH/VIL thresholds across supply voltage, and compatibility with 74HCT368 for TTL-level input interfacing.
Technical Context
This device implements six independent inverting buffers, each with active-low 3-state enable (1OE, 2OE) controlling output impedance. The outputs enter high-impedance OFF-state when OE is HIGH, allowing shared bus operation without contention.
Input clamp diodes support interface to voltages exceeding VCC when used with current-limiting resistors. Static characteristics are specified over -40 °C to +125 °C, with VOH ≥ 5.48 V and VOL ≤ 0.26 V at VCC = 6.0 V and IO = ±7.8 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex inverting buffer with 3-state outputs; enables bus isolation via dual active-low OE inputs. |
| Supply Voltage Range | 2.0 V to 6.0 V; supports mixed-voltage system interfacing and low-power operation at 2.0 V. |
| Propagation Delay | 9 ns typical at VCC = 6.0 V, CL = 15 pF; ensures timing compliance in 50 MHz+ synchronous bus designs. |
| Output Drive | ±35 mA per output; sufficient to drive 50 Ω transmission lines or multiple 74-series inputs. |
| Operating Temperature | -40 °C to +125 °C; qualified for extended industrial and under-hood embedded applications. |
| Input Thresholds | VIH = 4.2 V, VIL = 1.8 V at VCC = 6.0 V; provides >1.2 V noise margin for robust CMOS-level signal integrity. |
| Power Dissipation | 500 mW max (SO16); derates linearly at 12.4 mW/K above 110 °C for thermal management in dense PCB layouts. |
Pinout & Package
74HC368D,653 uses the SOT109-1 (SO16) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm pitch, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low output enable inputs; HIGH forces all six outputs into high-impedance state. |
| 2, 4, 6, 10, 12, 14 | 1A–6A | Inverting data inputs; each drives corresponding Y output with logical inversion. |
| 3, 5, 7, 9, 11, 13 | 1Y–6Y | Inverting 3-state outputs; reflect inverted A-input state when OE is LOW. |
| 8 | GND | Ground reference (0 V); must be low-impedance connection for stable noise immunity. |
| 16 | VCC | Positive supply rail; decoupling capacitor (100 nF) required within 5 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2.0 V to 6.0 V operation enables direct interface with 3.3 V and 5 V logic families without level shifters. |
| CMOS Input Compatibility | VIH/VIL thresholds track VCC proportionally (e.g., VIH = 0.7×VCC), ensuring reliable switching across voltage range. |
| High Noise Immunity | Typical noise margin >1.2 V at VCC = 6.0 V; reduces susceptibility to EMI in noisy industrial environments. |
| Clamp Diode Protection | Integrated input clamp diodes allow safe interfacing to signals up to VCC + 0.5 V using external current-limiting resistors. |
| JEDEC Compliance | Fully compliant with JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V); meets industry-standard reliability and interoperability requirements. |
Applications
| Industrial PLC I/O Expansion | Microcontroller Bus Isolation |
|---|---|
|
Use Scenario: Isolating microcontroller GPIO banks from high-noise fieldbus peripherals in programmable logic controllers. IC Role / Device Role / Timing Role: Inverting 3-state buffer enabling bidirectional data flow control between MCU and isolated RS-485 transceivers. Use Value: Prevents bus contention during reset or firmware update by placing outputs in high-Z state, eliminating signal corruption on shared data lines. |
Use Scenario: Driving address/data multiplexed buses in legacy 8-bit microcontroller systems with limited drive strength. IC Role / Device Role / Timing Role: Hex inverting line driver providing fanout and level translation between MCU and external memory or peripheral ICs. Use Value: Delivers ±35 mA per output to meet setup/hold timing margins for 74LS-compatible loads while maintaining <9 ns propagation delay. |
| Digital Test Equipment Signal Conditioning | Automated Test Fixture Control Logic |
|
Use Scenario: Conditioning logic-level signals from FPGA-based pattern generators before routing to DUT pins in ATE systems. IC Role / Device Role / Timing Role: Inverting buffer with precise transition times (4–15 ns) ensuring clean edge integrity for high-speed digital stimulus. Use Value: Low transition time (<15 ns) and matched tPHL/tPLH minimize skew across six parallel channels, critical for synchronized multi-pin testing. |
Use Scenario: Controlling relay drivers and opto-isolators in automated test fixtures requiring simultaneous channel enable/disable sequencing. IC Role / Device Role / Timing Role: Dual-OE controlled 3-state buffer enabling synchronized activation/deactivation of six independent load circuits. Use Value: Independent 1OE/2OE inputs allow grouped channel control (e.g., 1OE for channels 1–3, 2OE for 4–6), simplifying fixture sequencer logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT368D,653 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5–5.5 V); identical SO16 package and pinout. | Required when interfacing with legacy 5 V TTL logic; not suitable for pure CMOS systems below 4.5 V. | Select for mixed-logic systems where upstream drivers are TTL, not CMOS. |
| SN74HC368N | PDIP-16 package; wider lead spacing (0.3 inch); no thermal derating curve provided; rated only to +85 °C. | Suitable for prototyping or through-hole assembly; lacks extended temperature and thermal performance for industrial deployment. | Choose only for lab evaluation or non-temperature-critical through-hole designs. |
Compared with 74HC368D,653, the 74HCT368D,653 offers guaranteed TTL input compatibility but sacrifices low-voltage operation below 4.5 V, while the SN74HC368N provides identical logic function in through-hole form but lacks industrial temperature rating and thermal derating data needed for production-grade thermal design.
Availability
74HC368D,653 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller bus isolation, and automated test fixture control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for 74HC368D,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 delivering high-performance, reliable logic, discrete, and MOSFET solutions with focus on efficiency, miniaturization, and robustness for industrial and automotive markets.
The 74HC368 belongs to Nexperia's HC logic family, designed for low-power, high-noise-immunity digital interfacing in space-constrained industrial control and instrumentation systems.
FAQ
What is the maximum clock frequency supported by 74HC368D,653?
The 74HC368D,653 is not a clocked device-it has no internal clock and operates asynchronously. Its usable signal frequency depends on propagation delay (9 ns typical at VCC = 6.0 V) and load capacitance. For a 15 pF load, maximum reliable toggle rate is approximately 55 MHz, assuming full logic swing and proper termination.
Can 74HC368D,653 drive LEDs directly?
No-its outputs are designed for logic-level interfacing, not power driving. While it can source/sink ±35 mA per output, sustained LED current requires current-limiting resistors and thermal derating. Use dedicated LED drivers or discrete transistors for continuous illumination applications.
Is 74HC368D,653 pin-compatible with 74LS368?
No-74LS368 uses different input thresholds, higher supply current, and TTL-compatible outputs. Though pinout matches (SO16), electrical behavior differs significantly: 74HC368D,653 draws <160 μA ICC at VCC = 6.0 V, whereas 74LS368 draws ~24 mA, risking overdrive or latch-up if substituted without circuit redesign.
Does 74HC368D,653 require external pull-up or pull-down resistors on OE inputs?
No-OE inputs are CMOS-compatible with rail-to-rail voltage thresholds and negligible leakage (<±0.1 μA). They may be driven directly from MCU GPIO or logic gates. However, if left unconnected, OE floats HIGH, forcing outputs into high-impedance state-so intentional tie-off is recommended for deterministic startup behavior.
74HC368D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 2, 4 (Hex)
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC368D,653 FAQ
1.How can I place an order for 74HC368D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC368D,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 74HC368D,653 reliable?
The price and inventory of 74HC368D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC368D,653 is usually 5 days.
3.What payment methods are accepted for 74HC368D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC368D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC368D,653?
74HC368D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC368D,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 74HC368D,653?
For technical support, including 74HC368D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC368D,653 requirements.
6.How does Aetrix verify that 74HC368D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC368D,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 74HC368D,653 meets industry standards.
7.What is the process for return or replacement of 74HC368D,653?
All 74HC368D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC368D,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 74HC368D,653 part is unused and in its original packaging.
Return procedure for 74HC368D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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