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NXP Semiconductors 74HC4049N,652
- Part No.:
- 74HC4049N,652
- Manufacturer:
- NXP Semiconductors
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
74HC4049N,652.pdf
- Description:
- IC BUFFER INVERT 6V 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,204
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Product details
Overview
74HC4049N,652 from NXP Semiconductors is a hex inverting HIGH-to-LOW level shifter IC with overvoltage-tolerant inputs (up to 15 V), 6 independent CMOS inverters, DIP16 package, and operation from −40 °C to +125 °C. It enables interfacing between 5 V/3.3 V logic and higher-voltage control signals in industrial I/O and legacy bus systems.
For engineers reviewing the 74HC4049N,652 datasheet, 74HC4049N,652 pinout, 74HC4049N,652 application, or 74HC4049N,652 equivalent, key selection criteria include input overvoltage tolerance (15 V), guaranteed 6.0 V supply operation, propagation delay ≤22 ns at VCC = 6.0 V, output drive capability of ±5.2 mA, and compatibility with HC logic families across extended temperature range.
Technical Context
The 74HC4049N,652 implements six independent CMOS inverter stages with input protection diodes enabling safe operation when inputs exceed VCC-critical for bidirectional level translation where high-side signals drive low-voltage logic. Each inverter exhibits rail-to-rail output swing and symmetrical switching thresholds defined by VCC/2.
Its static characteristics are specified across three temperature ranges (−40 °C to +125 °C), with VIH/VIL thresholds scaling with VCC (e.g., VIH = 4.2 V min at VCC = 6.0 V) and VOL/VOH guaranteed under load (e.g., VOH ≥ 5.48 V at IO = −5.2 mA, VCC = 6.0 V). Input leakage remains ≤±5.0 µA even at VI = 15 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex inverting buffer; provides true inversion (L→H, H→L) per channel with no internal feedback or latch behavior. |
| Input Voltage Range | 0 V to 15 V - supports HIGH-to-LOW level shifting from legacy 12 V/15 V control lines into 3.3 V/5 V logic domains. |
| Supply Voltage (VCC) | 2.0 V to 6.0 V - operates reliably across standard HC voltage rails; 6.0 V max ensures compatibility with 5 V systems using margin. |
| Propagation Delay | ≤22 ns (max) at VCC = 6.0 V, CL = 50 pF - enables use in medium-speed digital interfaces up to ~20 MHz toggle rate. |
| Output Drive | ±5.2 mA (sink/source) at VCC = 6.0 V - sufficient to drive multiple 74HC inputs or small capacitive loads without external buffering. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive auxiliary modules, industrial PLC I/O, and harsh-environment embedded controllers. |
| ESD Protection | HBM > 2000 V, MM > 200 V - provides robust handling during board assembly and field service without additional protection circuitry. |
Pinout & Package
DIP16 plastic dual in-line package (300 mil width, 16 leads, SOT38-4 outline); through-hole mounting with 2.54 mm lead pitch; 13 and 16 are not connected (n.c.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply rail; must be decoupled locally with 100 nF ceramic capacitor to GND for stable switching. |
| 2, 4, 6, 10, 12, 15 | 1Y–6Y | Inverted outputs; each drives one logic signal; open-circuit tolerant but require pull-up/pull-down if unused. |
| 3, 5, 7, 9, 11, 14 | 1A–6A | Independent inputs; tolerate up to 15 V regardless of VCC value - enables direct connection to higher-voltage sources. |
| 8 | GND | Ground reference; must be low-impedance return path shared with VCC decoupling and adjacent logic. |
| 13, 16 | n.c. | No internal connection; left unconnected on PCB; no routing or soldering required. |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Accepts up to 15 V input signals while powered from 2–6 V - eliminates need for external level-shifting resistors or translators. |
| Rail-to-rail CMOS outputs | VOH ≥ 5.9 V and VOL ≤ 0.1 V at light load (20 µA) with VCC = 6.0 V - ensures full logic swing into HC/HCT loads. |
| Extended temperature range | Specified from −40 °C to +125 °C - supports deployment in engine control units, motor drives, and industrial automation without derating. |
| Low static current | ICC ≤ 40 µA max at VCC = 6.0 V and Tamb = −40 °C to +125 °C - minimizes quiescent power in always-on monitoring circuits. |
| JEDEC Std. 7A compliance | Meets industry-standard timing, voltage, and interface definitions for HC-family devices - ensures interoperability with legacy 74HC designs. |
Applications
| Industrial PLC Digital Input Modules | Legacy Automotive Sensor Interface |
|---|---|
Use Scenario: Converting 12 V switch signals from factory floor sensors into 5 V logic levels for microcontroller GPIO reading. IC Role / Device Role / Timing Role: Level-shifting inverter providing galvanically isolated signal conditioning without optocouplers or voltage dividers. Use Value: Eliminates external resistor networks and reduces BOM count while maintaining noise immunity via CMOS threshold hysteresis. |
Use Scenario: Interfacing 12 V analog sensor outputs (e.g., potentiometer wipers) to 3.3 V ADC reference buffers in body control modules. IC Role / Device Role / Timing Role: Input protection and voltage domain translation prior to signal conditioning amplifiers. Use Value: Prevents damage from back-fed sensor voltages exceeding MCU I/O ratings, enabling direct connection without series resistors. |
| RS-232 Line Receiver Logic Conditioning | Microcontroller GPIO Expansion for High-Voltage Peripherals |
Use Scenario: Converting RS-232 receiver outputs (±3 V to ±15 V) to clean 0–5 V logic for UART input on legacy 8051-based controllers. IC Role / Device Role / Timing Role: Inverting level translator with ESD-hardened inputs handling negative voltage transients. Use Value: Replaces discrete transistor inverters and clamping diodes, reducing layout area and improving signal integrity at baud rates ≤115.2 kbps. |
Use Scenario: Driving 12 V solenoid enable lines from 3.3 V microcontroller GPIO pins in HVAC actuator boards. IC Role / Device Role / Timing Role: Logic-level inverter with high-side voltage tolerance enabling direct control of external high-side switches. Use Value: Allows microcontroller to safely assert control signals referenced to higher system rails without level-shifter ICs or MOSFET gate drivers. |
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 |
|---|---|---|---|
| 74HCT4049N,652 | CMOS inputs with TTL-compatible thresholds (VIH ≈ 2.0 V); same pinout and overvoltage tolerance (15 V). | Better suited for mixed 5 V TTL/CMOS systems where input logic thresholds must match legacy TTL levels. | Select when interfacing with older 74LS or 74F logic families requiring lower VIH. |
| SN74LVX4049N | Lower VCC range (2.0–3.6 V only); no 15 V input tolerance; smaller SSOP16 package; higher speed (tpd ≤ 10 ns @ 3.3 V). | Optimized for modern low-voltage portable electronics; unsuitable for 5 V or higher input translation. | Choose only for 3.3 V-only systems needing faster response and smaller footprint; not a drop-in replacement. |
Compared with 74HC4049N,652, the 74HCT4049N,652 offers TTL-compatible input thresholds for legacy integration, while SN74LVX4049N sacrifices overvoltage tolerance for speed and low-voltage operation - neither is pin-compatible with 74HC4049N,652 in mixed-voltage contexts.
Availability
74HC4049N,652 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body electronics, RS-232 interface modules, and legacy system upgrades requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74HC4049N,652 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74HC4049N,652 belongs to NXP's legacy HC logic family, designed for robust, low-power digital interfacing in environments demanding wide supply range, high noise immunity, and long-term reliability without active biasing.
FAQ
What is the maximum input voltage the 74HC4049N,652 can tolerate?
The 74HC4049N,652 supports input voltages up to 15 V regardless of VCC level - a key feature enabling HIGH-to-LOW level shifting. This overvoltage tolerance is achieved via internal input clamping diodes and is validated per absolute maximum ratings (VIK = −0.5 V to +16 V). Exceeding 15 V risks permanent damage.
Can the 74HC4049N,652 operate from a 3.3 V supply?
Yes, the 74HC4049N,652 is fully specified for VCC = 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, VIH is guaranteed ≥2.3 V and VIL ≤1.8 V, ensuring reliable recognition of standard 3.3 V logic levels. Propagation delay increases to ≤33 ns (max) at 3.3 V, CL = 50 pF.
Are pins 13 and 16 on the 74HC4049N,652 internally connected?
No, pins 13 and 16 of the 74HC4049N,652 are explicitly designated as "not connected" (n.c.) in the official NXP datasheet. They have no internal bond wire or silicon connection and must remain unconnected on the PCB - no routing, pull-up, or grounding is required or recommended.
Does the 74HC4049N,652 support bidirectional level shifting?
No, the 74HC4049N,652 is a unidirectional inverting level shifter: inputs accept 0–15 V signals, outputs swing rail-to-rail between GND and VCC. It cannot pass signals from low-voltage outputs back to high-voltage inputs. For bidirectional translation, discrete solutions or dedicated bus transceivers are required.
What is the thermal performance of the 74HC4049N,652 in DIP16 package?
In the DIP16 (SOT38-4) package, the 74HC4049N,652 has a total power dissipation limit of 750 mW at Tamb ≤ 70 °C. Above 70 °C, Ptot derates linearly at 12 mW/K - e.g., maximum allowable power drops to 630 mW at 80 °C ambient. This reflects its through-hole thermal path and typical use in non-forced-air environments.
74HC4049N,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 16-DIP
74HC4049N,652 FAQ
1.How can I place an order for 74HC4049N,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC4049N,652 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 74HC4049N,652 reliable?
The price and inventory of 74HC4049N,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC4049N,652 is usually 5 days.
3.What payment methods are accepted for 74HC4049N,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC4049N,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC4049N,652?
74HC4049N,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC4049N,652 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 74HC4049N,652?
For technical support, including 74HC4049N,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC4049N,652 requirements.
6.How does Aetrix verify that 74HC4049N,652 is sourced from the original manufacturer or authorized distributors?
All 74HC4049N,652 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 74HC4049N,652 meets industry standards.
7.What is the process for return or replacement of 74HC4049N,652?
All 74HC4049N,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC4049N,652, 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 74HC4049N,652 part is unused and in its original packaging.
Return procedure for 74HC4049N,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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