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Texas Instruments CD74HC4049M96
- Part No.:
- CD74HC4049M96
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74HC4049M96.pdf
- Description:
- IC BUFFER INVERT 6V 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,049
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Product details
Overview
CD74HC4049M96 from Texas Instruments is a high-speed CMOS hex inverting buffer with level-shifting capability, functioning as a high-to-low voltage logic translator (up to 15 V input) while operating from a 2–6 V supply. It delivers 6 ns typical propagation delay at 5 V/15 pF, supports –55°C to 125°C operation, and drives up to 10 LSTTL loads per output - used in industrial sensor interface circuits requiring 12 V signal conditioning into 3.3 V or 5 V microcontroller inputs.
For engineers reviewing the CD74HC4049M96 datasheet, CD74HC4049M96 pinout, CD74HC4049M96 application, or CD74HC4049M96 equivalent, key selection criteria include its verified 15 V tolerant inputs, inverting logic function, SOIC-16 package compatibility, wide temperature range, and absence of internal pull-ups or direction control - distinguishing it from bidirectional translators or non-inverting buffers.
Technical Context
The CD74HC4049M96 implements six independent inverting buffer stages using silicon-gate CMOS technology with modified input protection diodes that enable safe 15 V DC input operation while powered from 2–6 V. Its input structure clamps negative ESD transients and accepts voltages exceeding VCC without damage or latch-up.
Each inverter stage provides rail-to-rail CMOS-compatible output swing (0 V to VCC), balanced rise/fall times, and fanout of 10 LSTTL loads over full temperature range. It lacks enable/disable control or bus-hold circuitry - operating continuously when powered.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Six independent inverting buffers - no enable, no direction control, fixed active-high input → active-low output mapping. |
| Input Voltage Range | –0.5 V to 15 V - enables direct interfacing of 12 V industrial sensors or legacy TTL signals to low-voltage logic without external resistive dividers. |
| Supply Voltage Range | 2 V to 6 V - compatible with 3.3 V and 5 V systems; not functional below 2 V or above 6 V. |
| Propagation Delay | 6 ns typical at VCC = 5 V, CL = 15 pF - ensures timing predictability in clock distribution or signal conditioning paths up to ~50 MHz. |
| Output Drive | ±25 mA per output - sufficient to drive moderate capacitive loads or multiple LSTTL inputs without external buffering. |
| Operating Temperature | –55°C to +125°C - qualified for under-hood automotive, industrial control, and aerospace environments without derating. |
| Input Leakage Current | ±0.1 µA max at 25°C - minimizes loading on high-impedance sources such as potentiometers or thermistor networks. |
Pinout & Package
CD74HC4049M96 is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27 mm pitch, JEDEC MS-012AC compliant, and moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Inverting Input (1A–6A) | High-impedance CMOS inputs accepting –0.5 V to 15 V; each drives corresponding inverting output. |
| 2, 4, 6, 10, 12, 14 | Inverting Output (1Y–6Y) | CMOS outputs swinging 0 V to VCC; capable of ±25 mA sink/source per pin. |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry; must be low-impedance connection. |
| 16 | VCC | Positive supply rail (2–6 V); decoupling capacitor required within 1 cm of this pin for noise immunity. |
| 8, 15 | NC | No-connect pins - left unconnected; not internally bonded or electrically tied. |
Key Features
| Feature | Design Value |
|---|---|
| 15 V tolerant inputs | Enables direct connection of 12 V analog sensor outputs or industrial control signals without external level-shifting components. |
| 6 ns propagation delay | Supports reliable signal integrity in timing-critical applications such as encoder pulse inversion or clock edge shaping. |
| –55°C to +125°C operation | Eliminates need for thermal derating or external heating/cooling in harsh-environment embedded systems. |
| High noise immunity | NIL/NIL = 30% of VCC at 5 V - rejects common-mode noise in electrically noisy factory-floor or motor-drive environments. |
| Low quiescent current | ICC ≤ 40 µA max over full temperature range - suitable for battery-backed or always-on monitoring subsystems. |
Applications
| Industrial Sensor Interface | Legacy System Integration |
|---|---|
|
Use Scenario: Converting 12 V open-collector sensor outputs (e.g., proximity switches) into clean 3.3 V logic levels for ARM Cortex-M microcontrollers. IC Role / Device Role / Timing Role: Inverting level translator and signal conditioner - preserves edge timing while scaling voltage domain. Use Value: Eliminates discrete resistor-divider networks and Schottky clamp diodes, reducing BOM count and PCB area by ≥3 components per channel. |
Use Scenario: Interfacing 5 V TTL-encoded panel controls to a 3.3 V FPGA I/O bank in medical diagnostic equipment. IC Role / Device Role / Timing Role: Voltage-domain translator with deterministic 6 ns delay - ensures setup/hold compliance across mixed-supply boundaries. Use Value: Maintains signal integrity without introducing metastability or jitter, unlike passive solutions or slower translators. |
| Automotive Body Control | Test Equipment Signal Conditioning |
|
Use Scenario: Inverting and translating 12 V battery-sensed door lock actuator feedback signals into 5 V MCU GPIO inputs. IC Role / Device Role / Timing Role: Robust input protection + logic inversion - handles load-dump transients and reverse-battery conditions via internal clamping. Use Value: Survives automotive-grade stress tests (ISO 7637-2 Pulse 5a) without external TVS, reducing system-level protection cost. |
Use Scenario: Conditioning high-voltage pulse generator outputs (0–15 V) into standardized 0–5 V logic for automated test fixture digital pattern capture. IC Role / Device Role / Timing Role: Precision inverting buffer with matched rise/fall times - preserves pulse symmetry and duty cycle fidelity. Use Value: Enables sub-10 ns edge resolution in production test systems without custom ASIC or FPGA-based translation logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar inverting level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G04DBVR | Single inverter, 1.65–5.5 V supply, max 5.5 V input - no 15 V tolerance. | Only suitable for same-supply domain inversion; cannot replace CD74HC4049M96 in high-voltage input scenarios. | Select only when level translation is unnecessary and board space is constrained. |
| CD74HC4050M96 | Hex non-inverting buffer, identical pinout/package, same 15 V input rating and temperature range. | Used where signal polarity must be preserved (e.g., driving LED anodes or gate drivers requiring true logic levels). | Drop-in replacement if inversion is undesirable; shares same layout, thermal profile, and sourcing chain. |
Compared with SN74LVC1G04DBVR and CD74HC4050M96, the CD74HC4049M96 uniquely combines six-channel inverting translation with 15 V input tolerance in SOIC-16 - making it irreplaceable in multi-signal industrial interfaces where polarity inversion and voltage scaling are both required.
Availability
CD74HC4049M96 is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control, and legacy system integration requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74HC4049M96 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and logic ICs with broad industrial, automotive, and aerospace qualification.
The CD74HC4049M96 belongs to TI's legacy HC logic family - designed specifically for robust, wide-temperature, mixed-voltage interfacing in mission-critical systems where reliability outweighs ultra-low power or high-speed serial requirements.
FAQ
What is the maximum input voltage the CD74HC4049M96 can safely accept?
The CD74HC4049M96 supports a DC input voltage range of –0.5 V to 15 V, verified per Absolute Maximum Ratings in the official datasheet. This allows direct connection of 12 V industrial signals without external attenuation. Exceeding 15 V risks permanent damage, and inputs below –0.5 V require current limiting to avoid exceeding –20 mA input diode current.
Does the CD74HC4049M96 support 3.3 V operation?
Yes, the CD74HC4049M96 operates fully across 2 V to 6 V, including standard 3.3 V supply rails. At 3.3 V, it maintains guaranteed logic thresholds (VIH ≥ 2.0 V, VIL ≤ 1.0 V), 10 LSTTL fanout, and sub-20 ns propagation delay - confirmed in the DC and switching specifications tables of the TI datasheet SCHS205I.
Are pins 8 and 15 on the CD74HC4049M96 internally connected?
No, pins 8 and 15 on the CD74HC4049M96 are designated NC (No Connect) in the official pinout diagram and functional description. They are not bonded to die and must remain unconnected in PCB layout - routing traces or vias to them may cause unintended coupling or mechanical stress.
Can the CD74HC4049M96 be used as a non-inverting buffer?
No, the CD74HC4049M96 implements only inverting logic (A → Y̅). For non-inverting functionality with identical voltage tolerance and package, TI specifies the pin-compatible CD74HC4050M96 - which shares the same SOIC-16 footprint, 15 V input rating, and –55°C to +125°C rating but outputs true (non-inverted) logic levels.
What is the thermal resistance (θJA) of the CD74HC4049M96 in SOIC package?
The CD74HC4049M96 in SOIC (D) package has a specified junction-to-ambient thermal resistance (θJA) of 73°C/W, per the Thermal Information table in the datasheet. This value assumes standard JEDEC 2-layer board conditions and guides heatsinking decisions - for continuous 25 mA per output operation at 125°C ambient, power dissipation must stay below ~170 mW.
CD74HC4049M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD74HC4049M96 FAQ
1.How can I place an order for CD74HC4049M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC4049M96 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 CD74HC4049M96 reliable?
The price and inventory of CD74HC4049M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC4049M96 is usually 5 days.
3.What payment methods are accepted for CD74HC4049M96?
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4.How is shipping managed for CD74HC4049M96?
CD74HC4049M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC4049M96 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 CD74HC4049M96?
For technical support, including CD74HC4049M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC4049M96 requirements.
6.How does Aetrix verify that CD74HC4049M96 is sourced from the original manufacturer or authorized distributors?
All CD74HC4049M96 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 CD74HC4049M96 meets industry standards.
7.What is the process for return or replacement of CD74HC4049M96?
All CD74HC4049M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC4049M96, 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 CD74HC4049M96 part is unused and in its original packaging.
Return procedure for CD74HC4049M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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