My Inquiry
My Account
onsemi MC14049BDR2G
- Part No.:
- MC14049BDR2G
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC14049BDR2G.pdf
- Description:
- IC INVERTER 6CH 1-INP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,692
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC14049BDR2G from onsemi is a hex inverting buffer IC built with CMOS P- and N-channel enhancement-mode transistors, designed for low-power logic level translation and high-noise-immunity applications. It operates from 3.0 V to 18 V, supports input voltages exceeding VDD, delivers ±45 mA output current per pin, and drives two TTL/DTL loads at VDD = 5.0 V (VOL ≤ 0.4 V, IOL ≥ 3.2 mA). It is used in industrial control interfaces requiring single-supply voltage translation.
For engineers reviewing the MC14049BDR2G datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, SOIC-16 package mapping, confirmed VIH/VIL thresholds across supply voltages, real-world sink/source drive capability, and validated alternative options for CMOS-to-TTL level-shifting designs.
Technical Context
The MC14049BDR2G implements six independent inverting buffer stages using complementary MOS architecture, enabling bidirectional voltage-level conversion without external biasing. Its inputs tolerate VIN up to 18 V regardless of VDD, and outputs swing rail-to-rail (VOL ≤ 0.05 V at VDD = 5 V, VOH ≥ 4.95 V), supporting direct interfacing between disparate logic families.
Each buffer exhibits high noise immunity due to CMOS threshold design, with guaranteed VIH ≥ 3.5 V and VIL ≤ 2.25 V at VDD = 5 V, and maintains stable operation over −55 °C to +125 °C ambient temperature. Quiescent current remains below 4.0 µA per package at VDD = 15 V, ensuring suitability for battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 18 V - enables single-supply operation across 5 V, 10 V, and 15 V logic domains without level-shifters. |
| Input Voltage Range | −0.5 V to +18.0 V - allows inputs to exceed VDD, critical for translating higher-voltage sensor or control signals into CMOS logic. |
| Output Sink Current | ≥ 30 mA at VDD = 15 V - sufficient to directly drive LEDs, small relays, or TTL inputs without external buffers. |
| Propagation Delay | 30 ns to 60 ns at VDD = 15 V, CL = 50 pF - ensures timing predictability in medium-speed digital control paths. |
| Input Capacitance | 10 pF to 20 pF - minimizes loading on upstream drivers and preserves signal integrity in high-impedance source circuits. |
| Quiescent Supply Current | ≤ 4.0 µA at VDD = 15 V - supports ultra-low-power standby modes in energy-sensitive embedded systems. |
| Operating Temperature | −55 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and outdoor equipment environments. |
Pinout & Package
MC14049BDR2G is housed in a 16-pin SOIC package (Case 751B, 9.90 mm × 3.90 mm × 1.37 mm), with 1.27 mm pitch and Pb-free finish. Pins 13 and 16 are internally unconnected (NC); unused inputs must be tied to VSS or VDD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main power supply connection; all internal circuitry referenced to this rail. |
| 2 | INA | Inverting input for Buffer A; accepts logic-level or overvoltage signals up to 18 V. |
| 3 | OUTA | Inverted output for Buffer A; rail-to-rail swing with ±45 mA drive capability. |
| 4 | INB | Inverting input for Buffer B; electrically identical to INA with same VIH/VIL specs. |
| 5 | OUTB | Inverted output for Buffer B; independently buffered, no crosstalk with other channels. |
| 6 | INC | Inverting input for Buffer C; supports same wide-input-voltage operation as INA/INB. |
| 7 | OUTC | Inverted output for Buffer C; capable of sinking 30 mA at VDD = 15 V. |
| 8 | VSS | Ground reference; all input/output thresholds and internal logic referenced to this node. |
| 9 | IND | Inverting input for Buffer D; shares same electrical characteristics and noise immunity as other inputs. |
| 10 | OUTD | Inverted output for Buffer D; meets VOL ≤ 0.05 V at VDD = 5 V for clean TTL interfacing. |
| 11 | INE | Inverting input for Buffer E; tolerant of transient overvoltage up to ±10 mA input current. |
| 12 | OUTE | Inverted output for Buffer E; supports dynamic load switching with IT = (5.3 µA/kHz)·f + IDD at VDD = 15 V. |
| 13 | NC | No internal connection; must remain unconnected or grounded per design guidelines. |
| 14 | INF | Inverting input for Buffer F; sixth independent channel with full parameter compliance. |
| 15 | OUTF | Inverted output for Buffer F; completes hex functionality with matched propagation delay and drive strength. |
| 16 | NC | No internal connection; floating or grounded - no effect on device operation. |
Key Features
| Feature | Design Value |
|---|---|
| High-to-Low Level Conversion | Accepts input signals up to 18 V while operating from 3–18 V VDD, eliminating need for external translators in mixed-voltage systems. |
| Rail-to-Rail Output Swing | VOH ≥ 4.95 V and VOL ≤ 0.05 V at VDD = 5 V ensures robust noise margins when driving TTL/DTL loads. |
| High Noise Immunity | Guaranteed VIH ≥ 3.5 V and VIL ≤ 2.25 V at VDD = 5 V provides >1.25 V noise margin against ground bounce or EMI. |
| Low Power Dissipation | IDD ≤ 4.0 µA at VDD = 15 V enables use in always-on monitoring circuits without thermal or battery-life penalties. |
| ESD Protection | Enhanced input protection meets JEDEC B specifications, reducing susceptibility to handling damage during assembly. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing 12 V analog sensor outputs (e.g., pressure transducers) to 5 V microcontroller ADC inputs via resistive divider + level-shifting buffer. IC Role / Device Role / Timing Role: Inverting buffer providing high-impedance input and low-impedance rail-to-rail output to isolate and translate sensor signals without loading. Use Value: Eliminates need for dual-supply op-amps or discrete transistor translators, reducing BOM count and PCB area by 30% in compact sensor nodes. | Use Scenario: Driving 5 V CAN transceiver enable lines and LED status indicators from 12 V vehicle battery domain in body control units. IC Role / Device Role / Timing Role: Logic-level translator and current amplifier, converting 12 V wake-up signals to clean 5 V logic levels while sourcing/sinking ≥30 mA. Use Value: Enables direct interface between 12 V power domain and 5 V logic domain without isolated DC-DC converters or optocouplers. |
| Legacy System Upgrades | Programmable Logic Controller I/O |
Use Scenario: Retrofitting obsolete 4000-series CMOS boards with modern low-power replacements while retaining existing 15 V supply rails and TTL peripherals. IC Role / Device Role / Timing Role: Hex inverter maintaining pin-compatible function with legacy MC14049B but with improved ESD tolerance and tighter VOH/VOL specs. Use Value: Extends service life of aging industrial controllers without redesigning power distribution or signal conditioning stages. | Use Scenario: Isolating and buffering digital I/O lines between FPGA-based controller and 24 V field actuators in modular PLC backplanes. IC Role / Device Role / Timing Role: Signal conditioner providing voltage translation, current gain, and noise rejection for open-collector or relay-driver outputs. Use Value: Reduces false triggering from EMI in factory-floor environments by raising input noise immunity to >2.5 V at 15 V VDD operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4049UBE | Same pinout and function but rated only to +85 °C; lacks enhanced ESD protection and AEC-Q100 qualification. | Suitable for commercial-grade consumer electronics; not recommended for automotive or extended-temperature industrial use. | Select CD4049UBE only if ambient temperature stays below 85 °C and ESD robustness is non-critical. |
| MC14050BDR2G | Non-inverting hex buffer variant; identical package, supply range, drive strength, and temperature rating. | Used where signal polarity preservation is required (e.g., clock distribution, non-inverted control lines). | Choose MC14050BDR2G when inversion is undesirable; otherwise MC14049BDR2G is optimal for active-low logic paths. |
Compared with CD4049UBE and MC14050BDR2G, MC14049BDR2G uniquely combines automotive-grade reliability (AEC-Q100), extended temperature support (−55 °C to +125 °C), and enhanced ESD protection - making it the preferred choice for mission-critical industrial and automotive signal translation where polarity inversion is acceptable.
Availability
MC14049BDR2G is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, legacy system upgrades, and programmable logic controller I/O requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC14049BDR2G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensors, and logic solutions for automotive, industrial, and cloud infrastructure markets.
The MC14049BDR2G belongs to onsemi's legacy CMOS logic family, engineered for robust voltage-level translation and high-noise-immunity operation in harsh environments - targeting applications where reliability across wide temperature and supply ranges is essential.
FAQ
What is the maximum input voltage allowed on MC14049BDR2G pins?
The MC14049BDR2G permits input voltages from −0.5 V to +18.0 V, independent of VDD. This allows direct connection of 12 V or 15 V signals to its inputs even when powered from 5 V, enabling seamless level translation without external components. Exceeding these limits risks permanent damage per the Absolute Maximum Ratings table.
Can MC14049BDR2G drive TTL loads directly?
Yes, MC14049BDR2G can drive two standard TTL/DTL loads when operated at VDD = 5.0 V, meeting VOL ≤ 0.4 V and IOL ≥ 3.2 mA per output. Its rail-to-rail output swing (VOH ≥ 4.95 V, VOL ≤ 0.05 V) ensures compatible logic thresholds and noise margins for reliable interfacing with 74LS and 74HC families.
Are pins 13 and 16 on MC14049BDR2G functional?
No, pins 13 and 16 on MC14049BDR2G are internally unconnected (NC). The datasheet explicitly states that connections to these terminals will not affect circuit operation. They may be left floating or tied to ground for mechanical stability, but must never be driven or used as signal paths.
What is the quiescent current consumption of MC14049BDR2G at 15 V supply?
At VDD = 15 V and TA = +25 °C, the MC14049BDR2G draws ≤ 4.0 µA of quiescent supply current per package. This ultra-low static power enables use in battery-powered or energy-harvesting systems where standby current must remain below 10 µA across multiple channels.
Does MC14049BDR2G support operation at −55 °C?
Yes, MC14049BDR2G is fully specified for operation from −55 °C to +125 °C ambient temperature. Its electrical characteristics - including VIH, VIL, VOL, VOH, and propagation delay - are guaranteed across this full range, making it suitable for aerospace, military, and under-hood automotive applications.
MC14049BDR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- -
- Voltage - Supply:
- 3V ~ 18V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 10mA, 40mA
- Input Logic Level - Low:
- 1.5V ~ 4V
- Input Logic Level - High:
- 3.5V ~ 11V
- Max Propagation Delay @ V, Max CL:
- 60ns @ 15V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MC14049BDR2G FAQ
1.How can I place an order for MC14049BDR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14049BDR2G 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 MC14049BDR2G reliable?
The price and inventory of MC14049BDR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14049BDR2G is usually 5 days.
3.What payment methods are accepted for MC14049BDR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14049BDR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14049BDR2G?
MC14049BDR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14049BDR2G 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 MC14049BDR2G?
For technical support, including MC14049BDR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14049BDR2G requirements.
6.How does Aetrix verify that MC14049BDR2G is sourced from the original manufacturer or authorized distributors?
All MC14049BDR2G 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 MC14049BDR2G meets industry standards.
7.What is the process for return or replacement of MC14049BDR2G?
All MC14049BDR2G units undergo pre-shipment inspection (PSI). If there is an issue with MC14049BDR2G, 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 MC14049BDR2G part is unused and in its original packaging.
Return procedure for MC14049BDR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC14049BDR2G Tags
-
SN74LVC1G14DBVR
Texas Instruments
-
SN74LVC1G14DCKR
Texas Instruments
-
SN74AHC1G14DBVR
Texas Instruments
-
SN74LVC1G08DBVR
Texas Instruments
-
SN74LVC1G08DCKR
Texas Instruments
-
SN74LVC1G32DCKR
Texas Instruments
-
SN74LVC1G04DBVR
Texas Instruments
.jpg)
-
74LVC1G08GW,125
Nexperia USA Inc.
-
SN74LVC1G04DCKR
Texas Instruments
-
SN74AHC1G08DBVR
Texas Instruments
-
SN74LVC1G32DBVR
Texas Instruments
-
SN74AHCT1G08DBVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
