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onsemi MC14584BDT
- Part No.:
- MC14584BDT
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC14584BDT.pdf
- Description:
- IC INVERTER
- Quantity:
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Inventory:2,066
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Product details
Overview
MC14584BDT from onsemi is a hex Schmitt trigger IC built with CMOS P- and N-channel enhancement-mode devices in a monolithic structure, providing 6 independent hysteresis-input buffers. It operates from 3.0 V to 18 V, delivers ±10 mA output drive, exhibits 0.25–1.0 V hysteresis (VDD-dependent), and is qualified for −55 °C to +125 °C ambient operation - used to square slow-rising waveforms in industrial timing and noise-prone sensor interface circuits.
For engineers reviewing the MC14584BDT datasheet, pinout, applications, or equivalent options, key selection considerations include supply voltage range (3–18 V), input hysteresis voltage (e.g., 1.0 V typ at 15 V), output drive capability (±4.2 mA sink/source at VDD = 15 V), TSSOP-14 package thermal profile, and compatibility with legacy MC14069UB replacement use cases.
Technical Context
The MC14584BDT implements six identical Schmitt-trigger inverters, each with asymmetric positive- and negative-going input thresholds (e.g., VT+ = 3.4 V, VT− = 3.0 V at VDD = 10 V), yielding defined hysteresis (VH = VT+ − VT−). Its CMOS architecture ensures high input impedance (>10⁹ Ω) and ultra-low quiescent current (0.25 µA typical at 5 V).
Each buffer supports rail-to-rail output swing, double-diode input protection, and drives two low-power TTL loads across temperature. Input capacitance is 5.0 pF, propagation delay is 125 ns max at 5 V (CL = 50 pF), and total supply current scales linearly with switching frequency and load capacitance per IT = (1.8 µA/kHz)·f + IDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 18.0 V DC - enables direct interface with wide-range industrial supplies and battery-backed systems without level-shifting. |
| Hysteresis Voltage (VH) | 0.25 V min to 1.7 V max (VDD-dependent) - provides robust noise margin against EMI-induced false triggering in motor control feedback paths. |
| Output Drive Current | ±4.2 mA sink/source at VDD = 15 V - sufficient to directly drive LP-TTL loads or small capacitive nodes (<50 pF) without external buffering. |
| Propagation Delay | 250 ns max at VDD = 5 V, CL = 50 pF - suitable for low-speed signal conditioning (≤1 MHz edge rates) in power supply sequencing and reset generation. |
| Quiescent Current | 0.25 µA typical at 5 V - supports always-on monitoring functions in energy-constrained embedded systems. |
| Operating Temperature | −55 °C to +125 °C - validated for under-hood automotive, industrial PLC, and outdoor telecom equipment deployment. |
Pinout & Package
TSSOP-14 (DT suffix), 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not electrically connected. RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (IN1–IN6) | CMOS-compatible Schmitt-trigger inputs with double-diode ESD protection; must be tied to VSS or VDD if unused. |
| 2, 4, 6, 8, 10, 12 | Output (OUT1–OUT6) | Inverting buffered outputs with rail-to-rail swing; capable of sourcing/sinking ±4.2 mA at 15 V. |
| 7 | VSS | Ground reference for all logic and power domains; primary return path for output current and quiescent supply. |
| 14 | VDD | Positive supply rail; accepts 3–18 V DC; decoupling capacitor (0.1 µF) recommended adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Hex Schmitt-trigger architecture | Six independent hysteresis-input inverters enable simultaneous waveform squaring across multiple sensor channels without cross-talk. |
| Wide supply voltage range | 3.0–18.0 V operation eliminates need for dedicated LDOs in mixed-voltage industrial subsystems. |
| High noise immunity | Controlled VT+ / VT− thresholds and ≥0.25 V hysteresis suppress sub-100 ns transients common in relay-driven or inductive-load environments. |
| Low-power CMOS design | Sub-microamp quiescent current allows integration into battery-backed real-time clock supervisors and watchdog circuits. |
Applications
| Motor Control Feedback | Sensor Signal Conditioning |
|---|---|
Use Scenario: Converting noisy, slow-rising hall-effect sensor outputs into clean digital edges for microcontroller capture timers. IC Role / Device Role / Timing Role: Schmitt-trigger inverter acting as analog-to-digital threshold translator with hysteresis-based noise rejection. Use Value: Eliminates software debouncing overhead and prevents false edge detection during PWM-induced EMI bursts near motor windings. | Use Scenario: Squaring thermistor or potentiometer-derived analog ramps in HVAC zone controllers. IC Role / Device Role / Timing Role: Input waveform shaper converting linear analog sweeps into deterministic logic-level transitions for comparator latching. Use Value: Ensures monotonic, jitter-free state changes in temperature threshold detection despite PCB trace coupling and thermal drift. |
| Power Supply Sequencing | Industrial Reset Generation |
Use Scenario: Delaying enable signals between 3.3 V and 12 V rails using RC networks feeding MC14584BDT inputs. IC Role / Device Role / Timing Role: Hysteresis-based timing element generating precise, supply-voltage-independent delay windows. Use Value: Provides stable, temperature-invariant turn-on sequencing without precision op-amps or dedicated timers. | Use Scenario: Generating system-wide reset pulses from brown-out detector outputs in programmable logic controllers. IC Role / Device Role / Timing Role: Noise-immune reset signal conditioner ensuring reliable deassertion after supply stabilization. Use Value: Prevents premature MCU release from reset due to ripple or transient dips on 5 V or 15 V control rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD40106BE | Same 6-inverter Schmitt function but rated only to +85 °C; lower hysteresis (0.8 V typ at 10 V); no double-diode input protection. | Not qualified for extended temperature industrial or automotive under-hood use; less robust in high-EMI factory-floor environments. | Select CD40106BE only for commercial-grade cost-sensitive designs where ambient stays below 70 °C and ESD stress is minimal. |
| SN74LVC14APWR | 3.3 V only (1.65–3.6 V); faster propagation (7.5 ns typ); higher drive (24 mA); no hysteresis spec beyond 0.5 V min at 3.3 V. | Requires level-shifting for >5 V systems; unsuitable for direct 12/15 V sensor interfacing; lacks guaranteed VH over full VDD range. | Choose SN74LVC14APWR for high-speed 3.3 V FPGA I/O conditioning, not for wide-VDD industrial signal cleanup. |
Compared with CD40106BE and SN74LVC14APWR, the MC14584BDT uniquely combines extended temperature support (−55 °C to +125 °C), 3–18 V operation, and guaranteed hysteresis across its full supply range - making it the only choice for unregulated or multi-rail industrial edge-sensing applications requiring deterministic noise rejection without external components.
Availability
MC14584BDT is available at Aetrix Electronics and suitable for motor control feedback, sensor signal conditioning, power supply sequencing, and industrial reset generation requiring stable component supply across extended temperature ranges and wide input voltage operation.
Supply support for MC14584BDT 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 is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC14584B series belongs to onsemi's legacy CMOS logic portfolio, designed specifically for robust signal conditioning in harsh industrial and automotive environments where noise immunity, wide supply tolerance, and extended temperature reliability are critical.
FAQ
What is the maximum operating temperature for the MC14584BDT?
The MC14584BDT is rated for an ambient temperature range of −55 °C to +125 °C, verified per its absolute maximum ratings table and electrical characterization across temperature. This makes MC14584BDT suitable for under-hood automotive modules, industrial motor drives, and outdoor telecom infrastructure where thermal extremes occur. Derating applies above +65 °C per the 7.0 mW/°C specification for plastic packages.
Can the MC14584BDT replace the MC14069UB hex inverter?
Yes, the MC14584BDT can replace the MC14069UB hex inverter in applications requiring enhanced noise immunity - specifically where "squaring up" slowly changing waveforms is needed. Unlike the MC14069UB, the MC14584BDT incorporates Schmitt-trigger inputs with defined hysteresis, eliminating metastability and improving reliability in noisy environments. The MC14584BDT retains the same pinout and supply compatibility as the MC14069UB.
What is the hysteresis voltage of the MC14584BDT at 15 V supply?
At VDD = 15 V, the MC14584BDT exhibits a hysteresis voltage (VH) of 0.77 V minimum to 1.7 V maximum, as specified in its Electrical Characteristics table. This value is derived from the difference between VT+ (5.2 V min) and VT− (4.5 V max) at that supply. The actual VH varies with temperature and process, but remains guaranteed within this band - enabling predictable noise margin design for 12–15 V industrial sensor interfaces.
Does the MC14584BDT require external pull-up resistors on its inputs?
No, the MC14584BDT does not require external pull-up resistors on its inputs because it features CMOS inputs with high impedance and internal double-diode ESD protection. However, unused inputs must be tied to a valid logic level - either VSS or VDD - to prevent floating states that could increase supply current or cause erratic output behavior. Leaving inputs unconnected is prohibited per the device's application guidance.
What package type is used for the MC14584BDT?
The MC14584BDT uses a TSSOP-14 package (case 948G), with 0.65 mm lead pitch, 4.4 mm × 5.0 mm body dimensions, and compliance with RoHS and JEDEC standards. This surface-mount package offers improved thermal performance and board-space efficiency over PDIP alternatives, and is compatible with standard reflow soldering profiles including peak temperatures up to 260 °C for 8 seconds.
MC14584BDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MC14584BDT FAQ
1.How can I place an order for MC14584BDT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14584BDT 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 MC14584BDT reliable?
The price and inventory of MC14584BDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14584BDT is usually 5 days.
3.What payment methods are accepted for MC14584BDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14584BDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14584BDT?
MC14584BDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14584BDT 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 MC14584BDT?
For technical support, including MC14584BDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14584BDT requirements.
6.How does Aetrix verify that MC14584BDT is sourced from the original manufacturer or authorized distributors?
All MC14584BDT 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 MC14584BDT meets industry standards.
7.What is the process for return or replacement of MC14584BDT?
All MC14584BDT units undergo pre-shipment inspection (PSI). If there is an issue with MC14584BDT, 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 MC14584BDT part is unused and in its original packaging.
Return procedure for MC14584BDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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