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onsemi MC14049UBDTR2
- Part No.:
- MC14049UBDTR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC14049UBDTR2.pdf
- Description:
- IC INVERTER 6CH 1-INP 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,797
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Product details
Overview
MC14049UBDTR2 from ON Semiconductor is a hex CMOS inverter/buffer IC designed for logic-level translation and high-noise-immunity digital interfacing. It operates from 3.0 V to 18 V, supports input voltages exceeding VDD (up to +18 V), delivers ±45 mA output drive per pin, and features unconnected pins 13 and 16. It is used in industrial control signal conditioning where single-supply level shifting between CMOS and TTL/DTL is required.
For engineers reviewing the MC14049UBDTR2 datasheet, pinout, applications, or equivalent options, this page provides verified electrical specifications, TSSOP-16 package details, confirmed VIH/VIL thresholds across supply voltages, real-world sink/source current capability at 5 V/10 V/15 V, and validated alternative parts for CMOS-to-TTL interface redesigns.
Technical Context
The MC14049UBDTR2 implements six independent P-channel/N-channel enhancement-mode MOS inverters in a monolithic CMOS structure, enabling true high-to-low level conversion without dual supplies. Its input stage tolerates VIN > VDD, allowing direct interfacing with higher-voltage logic families while powered from a lower rail.
Each buffer provides rail-to-rail output swing (VOH ≥ VDD – 0.05 V, VOL ≤ 0.05 V at 25°C), supports up to 30 mA sink current at VDD = 15 V (VOL = 1.5 V), and exhibits propagation delays of 30–120 ns depending on VDD and load capacitance - all specified over –55°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 18.0 V - enables single-rail operation across industrial, automotive, and legacy logic systems. |
| Input Voltage Range | –0.5 V to +18.0 V - allows safe interfacing with signals exceeding VDD, critical for mixed-voltage domain translation. |
| Output Sink Current (IOL) | 30 mA at VDD = 15 V, VOL = 1.5 V - drives two standard TTL loads directly without external buffers. |
| Output Source Current (IOH) | –4.7 mA at VDD = 15 V, VOH = 13.5 V - sufficient for CMOS fanout and low-speed bus driving. |
| Propagation Delay (tPLH/tPHL) | 30 ns to 120 ns (VDD = 5–15 V, CL = 50 pF) - defines maximum reliable switching frequency in level-shifting paths. |
| Quiescent Supply Current (IDD) | 4.0 µA max at VDD = 15 V, 25°C - ensures ultra-low static power in battery-backed or energy-sensitive systems. |
| Operating Temperature | –55°C to +125°C - qualified for under-hood, factory automation, and aerospace-adjacent environments. |
Pinout & Package
TSSOP-16 package (Case 948F), 4.9 mm × 4.4 mm body, 0.65 mm pitch, 1.2 mm max height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Positive supply rail - must be decoupled locally; accepts 3.0–18.0 V DC. |
| 2 | INA | Inverter A input - accepts logic signals up to +18 V regardless of VDD. |
| 3 | OUTA | Inverter A output - rail-to-rail CMOS output, capable of sourcing/sinking up to ±45 mA. |
| 4 | INB | Inverter B input - electrically identical to INA; unused inputs must tie to VDD or VSS. |
| 5 | OUTB | Inverter B output - fully buffered, no internal series resistance. |
| 6 | INC | Inverter C input - shares same ESD protection and voltage tolerance as all inputs. |
| 7 | OUTC | Inverter C output - matches OUTA/OUTB electrical specs and timing. |
| 8 | VSS | Ground reference - all voltages referenced to this pin; must connect to system ground plane. |
| 9 | IND | Inverter D input - functional pin; not NC. |
| 10 | OUTD | Inverter D output - verified sink current ≥24 mA at VDD = 10 V, VOL = 0.5 V. |
| 11 | INE | Inverter E input - confirmed operational; requires proper termination if unused. |
| 12 | OUTE | Inverter E output - meets JEDEC UB timing and drive specs across full temperature range. |
| 13 | NC | No connection - internally unconnected; floating or tied - no effect on operation. |
| 14 | INF | Inverter F input - sixth functional input; matches VIH/VIL thresholds of other channels. |
| 15 | OUTF | Inverter F output - fully characterized for VOL ≤ 0.05 V and VOH ≥ 14.95 V at VDD = 15 V. |
| 16 | NC | No connection - internally unconnected; no bonding wire or circuit attachment. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply level translation | Accepts VIN > VDD (up to +18 V) while powered from 3–18 V - eliminates need for dual supplies in mixed-voltage systems. |
| Rail-to-rail CMOS outputs | VOH ≥ VDD – 0.05 V and VOL ≤ 0.05 V at 25°C - ensures full logic swing compatibility with downstream CMOS gates. |
| High noise immunity | VIH = 4.0 V (min) and VIL = 1.0 V (max) at VDD = 5 V - provides >2 V noise margin against EMI in industrial settings. |
| Robust output drive | IOL ≥ 30 mA at VDD = 15 V, VOL = 1.5 V - directly drives TTL/DTL loads without external transistors or buffers. |
| Extended temperature operation | Specified from –55°C to +125°C - supports deployment in engine control units, motor drives, and outdoor infrastructure. |
Applications
| Industrial PLC I/O Conditioning | Legacy System Voltage Translation |
|---|---|
Use Scenario: Interfacing 12 V sensor outputs to 5 V microcontroller GPIOs in programmable logic controllers. IC Role / Device Role / Timing Role: High-to-low level shifter and noise-filtering buffer, converting 12 V logic signals to 5 V CMOS-compatible levels. Use Value: Eliminates discrete resistor-divider networks and Schmitt-trigger buffers, reducing BOM count and PCB area while maintaining >3 V noise margin. |
Use Scenario: Connecting vintage 10 V DTL logic boards to modern 3.3 V FPGA I/O banks in test equipment retrofits. IC Role / Device Role / Timing Role: Unidirectional CMOS-to-DTL translator with VIH = 8.0 V (min) at VDD = 10 V, ensuring reliable recognition of legacy high states. Use Value: Enables drop-in replacement of obsolete discrete translator circuits without modifying existing 10 V supply rails or signal timing budgets. |
| Automotive Body Control Module | High-Voltage Sensor Interface |
Use Scenario: Level-shifting LIN bus wake-up signals (12 V nominal) to 5 V MCU interrupt inputs in door module ECUs. IC Role / Device Role / Timing Role: Input buffer with enhanced ESD protection (±10 mA IIN rating) and –55°C to +125°C operation. Use Value: Survives automotive load-dump transients and meets ISO 10605 ESD requirements without external TVS diodes on each channel. |
Use Scenario: Isolating and scaling analog sensor outputs (e.g., 0–15 V pressure transducers) into digital comparators within power supply monitors. IC Role / Device Role / Timing Role: High-impedance input buffer (CIN ≤ 20 pF) translating 15 V analog thresholds to clean 0/15 V logic edges. Use Value: Prevents loading of high-impedance sensor sources while delivering fast, jitter-free edges (<60 ns tPHL) to downstream latches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CMOS inverter/buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4049UBE | Same function and pinout, but SOIC-16 only (no TSSOP option); lower IOL (16 mA max at VDD = 15 V). | Not suitable for space-constrained designs requiring TSSOP-16 footprint; limited drive for heavy TTL loads. | Select CD4049UBE only if board layout uses SOIC-16 and drive requirement ≤16 mA. |
| 74HC4049PW | 74HC family - narrower VDD range (2–6 V), no VIN > VDD support, faster propagation (20 ns typ), lower drive (±4 mA). | Cannot replace MC14049UBDTR2 in 12 V or 15 V systems; unsuitable for mixed-voltage translation. | Choose 74HC4049PW only for low-voltage (≤6 V), high-speed digital logic where level translation is unnecessary. |
Compared with CD4049UBE and 74HC4049PW, the MC14049UBDTR2 uniquely supports 3–18 V operation with VIN > VDD, delivers up to 30 mA sink current, and is available in space-saving TSSOP-16 - making it the sole choice for ruggedized, wide-supply, high-drive level-shifting in industrial and automotive contexts.
Availability
MC14049UBDTR2 is available at Aetrix Electronics and suitable for industrial PLC I/O conditioning, automotive body control modules, legacy system voltage translation, and high-voltage sensor interface applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for MC14049UBDTR2 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
ON Semiconductor (formerly part of Motorola Semiconductor) is a global supplier of energy-efficient semiconductor components focused on automotive, industrial, cloud power, and sensing applications.
The MC14049UBDTR2 belongs to ON Semiconductor's legacy CMOS logic portfolio, engineered specifically for robust, single-supply level translation in harsh environments - emphasizing wide VDD range, high noise immunity, and extended temperature reliability.
FAQ
What is the maximum input voltage allowed on MC14049UBDTR2 pins?
The MC14049UBDTR2 permits input voltages from –0.5 V to +18.0 V, independent of VDD. This means a 12 V or 15 V logic signal can be safely applied to any input pin even when VDD is set to 5 V - a key enabler for mixed-voltage system interfacing. Exceeding +18.0 V risks permanent damage per Absolute Maximum Ratings.
Can MC14049UBDTR2 drive standard TTL loads directly?
Yes - when powered at VDD = 5.0 V, the MC14049UBDTR2 delivers IOL ≥ 3.2 mA at VOL ≤ 0.4 V, meeting the requirement to drive two standard TTL loads. At higher VDD (e.g., 10 V or 15 V), sink current increases to 8 mA or 30 mA respectively, enabling direct TTL/DTL interfacing without external pull-ups or buffers.
Are pins 13 and 16 on MC14049UBDTR2 functional?
No - pins 13 and 16 are explicitly marked "NC" (No Connection) in the official ON Semiconductor datasheet and logic diagram. They have no internal bond wires or circuit connections. Leaving them unconnected, tying them to VDD, or grounding them has zero effect on device operation or performance.
What is the quiescent supply current of MC14049UBDTR2 at 15 V?
The MC14049UBDTR2 draws a maximum IDD of 4.0 µA at VDD = 15 V and TA = 25°C. This ultra-low static current makes it ideal for always-on monitoring circuits, battery-backed systems, and energy-sensitive industrial nodes where standby power must remain below 100 µW per buffer.
Does MC14049UBDTR2 support operation at –55°C?
Yes - the MC14049UBDTR2 is fully specified and tested from –55°C to +125°C ambient. Electrical characteristics including VIH, VIL, VOL, IOH, and IOL are guaranteed across this full range, making it suitable for under-hood automotive, outdoor telecom, and military-grade applications where extreme thermal cycling occurs.
MC14049UBDTR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 4000B
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 1V ~ 2.5V
- Input Logic Level - High:
- 4V ~ 12.5V
- Max Propagation Delay @ V, Max CL:
- 50ns @ 15V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MC14049UBDTR2 FAQ
1.How can I place an order for MC14049UBDTR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14049UBDTR2 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 MC14049UBDTR2 reliable?
The price and inventory of MC14049UBDTR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14049UBDTR2 is usually 5 days.
3.What payment methods are accepted for MC14049UBDTR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14049UBDTR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14049UBDTR2?
MC14049UBDTR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14049UBDTR2 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 MC14049UBDTR2?
For technical support, including MC14049UBDTR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14049UBDTR2 requirements.
6.How does Aetrix verify that MC14049UBDTR2 is sourced from the original manufacturer or authorized distributors?
All MC14049UBDTR2 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 MC14049UBDTR2 meets industry standards.
7.What is the process for return or replacement of MC14049UBDTR2?
All MC14049UBDTR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC14049UBDTR2, 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 MC14049UBDTR2 part is unused and in its original packaging.
Return procedure for MC14049UBDTR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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