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Nexperia USA Inc. 74HC4049D,653
- Part No.:
- 74HC4049D,653
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC4049D,653.pdf
- Description:
- IC BUFFER INVERT 6V 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,053
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Product details
Overview
74HC4049D,653 from Nexperia is a hex inverting HIGH-to-LOW level shifter with overvoltage-tolerant inputs rated to 15 V, operating across 2.0 V–6.0 V supply, delivering 6 independent CMOS inverters optimized for interfacing higher-voltage logic (e.g., 5 V/12 V) to lower-voltage systems (e.g., 3.3 V/2.5 V) in industrial control backplanes.
For engineers reviewing the 74HC4049D,653 datasheet, 74HC4049D,653 pinout, 74HC4049D,653 application, or 74HC4049D,653 equivalent, key selection criteria include input overvoltage tolerance (15 V), guaranteed operation up to +125 °C, SO16 package compatibility, and verified propagation delay ≤22 ns at 6.0 V with 50 pF load.
Technical Context
The 74HC4049D implements six independent CMOS inverter stages, each featuring diode-clamped inputs that withstand 15 V regardless of VCC (2.0–6.0 V), enabling robust bidirectional voltage translation without external components. Its logic function strictly follows L→H / H→L inversion per channel with no internal feedback or latch-up risk.
Input clamping is achieved via polysilicon resistors and protection diodes referenced to VCC and GND (Fig. 4), ensuring safe operation when VI exceeds VCC - critical for mixed-supply bus interfacing. Static drive strength is specified at ±4.0 mA (VOH/VOL) and ±5.2 mA (VCC = 6.0 V), supporting TTL- and CMOS-compatible loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 6.0 V - enables direct use with 2.5 V, 3.3 V, and 5 V logic domains without level-shifting circuitry |
| Input Overvoltage Tolerance | Up to 15 V - allows safe connection to 12 V control signals while powered from 3.3 V, eliminating external clamping diodes |
| Propagation Delay | 8 ns (typ) to 22 ns (max) at VCC = 6.0 V, CL = 50 pF - supports reliable timing in sub-25 MHz digital control paths |
| Output Drive Strength | ±4.0 mA at VCC = 4.5 V - sufficient to drive 10 LS-TTL loads or 20 CMOS inputs without buffering |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLC I/O, and high-ambient motor drives |
| Input Leakage Current | ±0.5 μA max at VI = 15 V - ensures minimal loading on high-impedance sensor or microcontroller GPIO lines |
| Power Dissipation | 500 mW max (SO16) - derates linearly above 110 °C (12.4 mW/K), supporting thermally constrained PCB layouts |
Pinout & Package
74HC4049D,653 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads and 3.9 mm body width, optimized for automated assembly and thermal reliability in dense industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply rail - must be decoupled locally; powers all six inverters and internal clamp circuitry |
| 2, 4, 6, 10, 12, 15 | 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Inverted outputs - each corresponds one-to-one with its A-input; open-drain behavior not supported |
| 3, 5, 7, 9, 11, 14 | 1A, 2A, 3A, 4A, 5A, 6A | Non-inverting inputs - tolerate up to 15 V regardless of VCC value; no current limiting required |
| 8 | GND | Ground reference - shared return path for all logic and clamp currents; requires low-impedance plane |
| 13, 16 | n.c. | No connect - internally unconnected; must remain floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | 15 V absolute max input voltage independent of VCC - eliminates need for external series resistors or Zener clamps in mixed-voltage interfaces |
| Wide VCC operating range | 2.0 V to 6.0 V - supports direct integration into both legacy 5 V and modern low-power 2.5 V/3.3 V systems without voltage translators |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - ensures robustness against transient ground bounce or supply glitches in noisy industrial environments |
| High noise immunity | Typical VIH = 3.15 V / VIL = 1.35 V at VCC = 4.5 V - provides >1.8 V noise margin, reducing susceptibility to EMI in motor-drive or relay-control boards |
| ESD protection | HBM >2000 V, CDM >1000 V - meets IEC 61000-4-2 Level 3 requirements for handling and board-level surge resilience |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
|
Use Scenario: Interfacing 12 V sensor switch inputs (e.g., door ajar, hood open) to a 3.3 V microcontroller GPIO bank. IC Role / Device Role / Timing Role: Hex inverting level shifter - translates 12 V active-low signals to clean 3.3 V logic levels while suppressing transients. Use Value: Eliminates six discrete resistor-diode networks, reduces BOM count by 12 parts, and guarantees signal integrity across -40 °C to +125 °C ambient. |
Use Scenario: Driving 5 V CAN transceiver standby enable lines from a 2.5 V automotive MCU with strict power budget constraints. IC Role / Device Role / Timing Role: Logic inverter with overvoltage-safe inputs - provides precise 2.5 V → 5 V level shift for enable/disable sequencing without leakage-induced wake-up. Use Value: Enables zero-quiescent-current sleep mode by preventing unintended 5 V pull-up current through MCU pins during deep-sleep states. |
| Legacy Equipment Retrofits | Test & Measurement Signal Conditioning |
|
Use Scenario: Upgrading aging 5 V TTL-based instrumentation with modern 3.3 V FPGAs while retaining existing 5 V front-end analog switches and multiplexers. IC Role / Device Role / Timing Role: Bidirectional voltage translator - accepts 5 V control signals from legacy logic and delivers inverted 3.3 V outputs compatible with FPGA configuration banks. Use Value: Preserves full signal timing (tpd ≤22 ns) and eliminates redesign of PCB routing or firmware timing margins during hardware refresh. |
Use Scenario: Converting slow-rising 10 V pulse train from a photomultiplier tube amplifier into clean 5 V CMOS clock edges for time-of-flight measurement ASICs. IC Role / Device Role / Timing Role: High-noise-immunity inverter - shapes analog-like pulses into sharp-edged digital clocks while rejecting EMI from adjacent high-voltage supplies. Use Value: Achieves <1 ns jitter contribution (via fast tt ≤19 ns) and maintains >2.5 V noise margin, directly improving time-stamp resolution accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting level shifting applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVX4049M | Lower VIH (1.7 V @ VCC = 3.3 V); max VI = 7 V only - no 15 V overvoltage tolerance | Suitable for 3.3 V ↔ 5 V translation only; cannot interface 12 V sensors | Select when cost sensitivity outweighs overvoltage requirement and ambient stays ≤85 °C |
| 74LVC4049PW | Same pinout; VI max = 6.0 V (not overvoltage tolerant); higher drive (±24 mA) | Requires external clamping for >6 V inputs; better for driving heavy capacitive loads | Choose only if system operates exclusively within 1.65–5.5 V domain and needs stronger output sourcing |
Compared with SN74LVX4049M and 74LVC4049PW, the 74HC4049D,653 uniquely supports 15 V input tolerance at full industrial temperature range, making it the sole option for direct 12 V sensor interfacing without added protection circuitry - a critical differentiator in retrofit and harsh-environment designs.
Availability
74HC4049D,653 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, legacy equipment upgrades, and test instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC4049D,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 focused on essential efficiency technologies, delivering high-performance, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC4049 belongs to Nexperia's HC logic family - engineered specifically for robust, low-power, wide-supply-level translation in electrically noisy and thermally demanding environments where legacy and modern voltage domains coexist.
FAQ
Can 74HC4049D,653 translate 12 V inputs to 2.5 V outputs reliably?
Yes - its inputs tolerate up to 15 V regardless of VCC, and with VCC = 2.5 V, it delivers valid CMOS output levels (VOH ≥2.2 V, VOL ≤0.3 V) while drawing only 20 μA ICC. This enables direct 12 V → 2.5 V level shifting without external components, validated across -40 °C to +125 °C.
Is pin 13 (n.c.) required to be grounded or left floating?
Pin 13 is internally unconnected and must remain floating per Nexperia's design guidance. Tying it to GND or VCC introduces no functional benefit and risks unintended coupling in high-frequency layouts; standard practice is to leave it unconnected on the PCB.
How does 74HC4049D,653 compare to 74HC4050 in level-shifting applications?
Unlike the non-inverting 74HC4050, the 74HC4049D,653 provides inversion - critical for active-low signal conditioning (e.g., reset lines, interrupt asserts). Both offer 15 V input tolerance, but only the 4049 supports true HIGH-to-LOW translation with guaranteed logic polarity reversal per channel.
Does 74HC4049D,653 require external pull-up resistors on outputs?
No - it features push-pull CMOS outputs capable of actively driving both HIGH and LOW states. External pull-ups are unnecessary and would degrade switching speed and increase power consumption; outputs source/sink up to ±5.2 mA at VCC = 6.0 V.
74HC4049D,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:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC4049D,653 FAQ
1.How can I place an order for 74HC4049D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC4049D,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 74HC4049D,653 reliable?
The price and inventory of 74HC4049D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC4049D,653 is usually 5 days.
3.What payment methods are accepted for 74HC4049D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC4049D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC4049D,653?
74HC4049D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC4049D,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 74HC4049D,653?
For technical support, including 74HC4049D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC4049D,653 requirements.
6.How does Aetrix verify that 74HC4049D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC4049D,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 74HC4049D,653 meets industry standards.
7.What is the process for return or replacement of 74HC4049D,653?
All 74HC4049D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC4049D,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 74HC4049D,653 part is unused and in its original packaging.
Return procedure for 74HC4049D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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