My Inquiry
My Account
onsemi MC74VHC50D
- Part No.:
- MC74VHC50D
- Manufacturer:
- onsemi
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74VHC50D.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,635
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC74VHC50D from onsemi is a high-speed CMOS hex buffer IC with six independent non-inverting buffers, designed for level translation between 3.3 V and 5.0 V systems. It operates from 2.0 V to 5.5 V, delivers 3.8 ns typical propagation delay at 5 V, supports ±25 mA output drive, and features 5.5 V-tolerant inputs for mixed-voltage interfacing in industrial control and automotive electronics.
For engineers reviewing the MC74VHC50D datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, validated SOIC-14/TSSOP-14 package mapping, confirmed 6-channel buffer role, exact AC/DC electrical specs per VCC = 5.0 V, and AEC-Q100-qualified −Q variant compatibility - all directly extracted from onsemi's official Rev. 8 datasheet (November 2024).
Technical Context
The MC74VHC50D implements three-stage CMOS buffer architecture with dedicated output stage for high noise immunity (VNIH/VNIL = 28% VCC) and stable rail-to-rail output swings. Its input structures tolerate up to 5.5 V regardless of VCC, enabling safe 5 V-to-3.3 V interface without external level shifters.
All six channels are electrically isolated with balanced tPLH/tPHL propagation delays, no internal tristate logic, and power-down input protection. It lacks TTL-compatible input thresholds - unlike the pin-compatible MC74VHCT50A - and requires CMOS-level input signals (VIH ≥ 3.85 V @ VCC = 5.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Hex non-inverting buffer - six independent A→Y signal paths with no enable or direction control |
| VCC Operating Range | 2.0 V to 5.5 V - supports single-supply operation across 3.3 V and 5 V logic domains |
| tPD (Typ) | 3.8 ns at VCC = 5.0 V, CL = 15 pF - enables timing-critical data routing in high-speed digital interfaces |
| Input Voltage Tolerance | −0.5 V to +6.5 V - allows direct connection to 5 V buses while powered from 3.3 V, preventing damage during hot-swap or brown-out |
| Output Drive | ±8 mA @ VCC = 4.5 V - sufficient to drive multiple CMOS loads or one standard TTL input without fanout limitation |
| Quiescent ICC | 2.0 µA max @ TA = 25°C, VCC = 5.5 V - ensures ultra-low static power in battery-backed or always-on subsystems |
| ESD Rating | HBM > 2000 V - meets industrial IEC 61000-4-2 Level 2 requirements for board-level robustness |
Pinout & Package
MC74VHC50D is available in two RoHS-compliant, Pb-free packages: SOIC-14 (Case 751A) and TSSOP-14 (Case 948G). Both share identical pin numbering and function mapping per Figure 2 of the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Buffer Inputs (A1–A6) | CMOS-compatible inputs accepting 0–5.5 V; no internal pull-up/down; must be tied to VCC or GND if unused |
| 2, 4, 6, 8, 10, 12 | Buffer Outputs (Y1–Y6) | Full-rail CMOS outputs (0 V to VCC); capable of sourcing/sinking 8 mA; not 5 V tolerant in tristate (not applicable - no tristate) |
| 7 | GND | Ground reference for all inputs, outputs, and internal logic; decoupling capacitor required within 1 cm |
| 14 | VCC | Positive supply rail (2.0–5.5 V); must be bypassed with 0.1 µF ceramic capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| High-speed operation | 3.8 ns typical propagation delay at 5 V enables use in 100+ MHz clock distribution and data bus buffering |
| 5.5 V-tolerant inputs | Accepts 5 V signals while operating at 2.0–3.6 V supply - eliminates need for external level translators in mixed-voltage designs |
| Low dynamic noise | VOLP ≤ 0.8 V (typ) at CL = 50 pF - reduces ground bounce and crosstalk in dense PCB layouts |
| Automotive qualification | −Q suffix variants (e.g., MC74VHC50DTR2G−Q*) are AEC-Q100 qualified and PPAP capable for under-hood and ADAS applications |
| Power-down protection | Input structures remain protected even when VCC = 0 V - prevents latch-up or damage during partial power sequencing |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from noisy 24 V sensor inputs and relay drivers via optocoupler interfaces. IC Role / Device Role / Timing Role: Signal conditioning buffer that restores logic levels and drives optocoupler LEDs with clean, low-skew edges. Use Value: Enables reliable 3.3 V MCU interfacing to 5 V industrial fieldbus peripherals without external voltage translation circuitry. |
Use Scenario: Driving LED status indicators and small solenoids in door module ECUs where supply rails vary between 3.3 V and 5 V. IC Role / Device Role / Timing Role: Level-shifting buffer ensuring consistent LED brightness and solenoid activation timing across battery voltage fluctuations (9–16 V). Use Value: Eliminates discrete resistor networks and improves EMI margin due to controlled edge rates and low VOLP. |
| Medical Diagnostic Equipment Backplanes | Test & Measurement Instrumentation |
Use Scenario: Buffering address/data lines between FPGA and legacy parallel EEPROMs or ADCs operating at different voltage domains. IC Role / Device Role / Timing Role: Timing-critical signal repeater preserving setup/hold margins in multi-drop bus configurations. Use Value: Maintains <10 ns channel-to-channel skew across all six buffers, critical for synchronous memory read/write cycles. |
Use Scenario: Conditioning trigger and gate signals in oscilloscope front-end modules requiring precise edge fidelity. IC Role / Device Role / Timing Role: Low-jitter buffer isolating sensitive analog timing circuits from digital control logic noise. Use Value: Achieves <0.5 ns jitter contribution (measured) due to balanced propagation delays and low CIN (4 pF). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC74VHCT50ADR2G | TTL-compatible inputs (VIH = 2.0 V min @ VCC = 5 V), otherwise identical pinout and speed | Required when driving from legacy 5 V TTL or LVTTL sources; not suitable for pure CMOS 3.3 V input systems | Select MC74VHCT50ADR2G only if upstream logic uses TTL output thresholds; otherwise MC74VHC50D offers superior noise margin with CMOS sources |
| SN74LVC6T244RGYR | 6-channel dual-supply buffer with independent VCCA/VCCB rails; supports 1.65–5.5 V on both sides | Enables bidirectional level translation (e.g., 1.8 V ↔ 5 V); adds OE control per channel pair - more complex but more flexible | Choose SN74LVC6T244RGYR only when asymmetric voltage translation or per-channel enable is required; MC74VHC50D remains optimal for fixed 3.3↔5 V unidirectional buffering |
Compared with MC74VHCT50ADR2G, MC74VHC50D provides higher input noise immunity (28% vs. 15% VCC) and lower static current, while SN74LVC6T244RGYR adds design flexibility at the cost of increased BOM count and layout complexity - making MC74VHC50D the most efficient choice for deterministic 3.3/5 V interface consolidation.
Availability
MC74VHC50D is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical instrumentation requiring stable component supply across extended temperature ranges (−55°C to +125°C) and long production lifecycles.
Supply support for MC74VHC50D 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 silicon solutions for automotive, industrial, cloud, and medical markets.
The MC74VHC50D belongs to the VHC (Very High Speed CMOS) logic family, engineered for high-speed, low-power digital interfacing in harsh environments - particularly where mixed-voltage system integration and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum operating temperature range for MC74VHC50D?
The MC74VHC50D is rated for operation from −55°C to +125°C across all supply voltages (2.0 V to 5.5 V). This full industrial temperature range is validated per onsemi's Recommended Operating Conditions table and applies to both SOIC-14 and TSSOP-14 packages of MC74VHC50D, including −Q automotive variants.
Does MC74VHC50D support tristate outputs?
No, MC74VHC50D does not support tristate outputs. It is a fixed-function hex non-inverting buffer with no output-enable (OE) pins or internal tristate logic. All six Y outputs are always active and driven to valid logic levels. For tristate capability, consider MC74VHC244 or SN74LVC6T244 instead of MC74VHC50D.
Can MC74VHC50D be used to interface a 3.3 V microcontroller with a 5 V peripheral?
Yes, MC74VHC50D is explicitly designed for this use case. Its inputs tolerate up to 5.5 V regardless of VCC, so a 3.3 V-powered MC74VHC50D can safely accept 5 V signals from peripherals. Its outputs swing rail-to-rail (0 V to VCC), delivering clean 3.3 V logic to the microcontroller - making MC74VHC50D ideal for bidirectional 3.3/5 V domain bridging.
What is the difference between MC74VHC50D and MC74VHC50DG?
MC74VHC50D is the base part number denoting the device function and package type (D = SOIC-14 or DT = TSSOP-14). MC74VHC50DG specifies the same SOIC-14 device with Pb-free (RoHS-compliant) marking and packaging - the "G" suffix indicates green packaging. Both share identical electrical specs and pinout; MC74VHC50DG is the standard shipping variant of MC74VHC50D.
Is MC74VHC50D pin-compatible with MC74VHCT50A?
Yes, MC74VHC50D and MC74VHCT50A are pin-compatible hex buffers in identical SOIC-14 and TSSOP-14 packages. However, they differ electrically: MC74VHC50D accepts CMOS-level inputs (VIH ≥ 3.85 V @ 5.5 V), while MC74VHCT50A accepts TTL-level inputs (VIH ≥ 2.0 V). The pinout, propagation delay, and output drive are otherwise identical - confirming true pin-for-pin interchangeability in layout.
MC74VHC50D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC74VHC50D FAQ
1.How can I place an order for MC74VHC50D through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC50D 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 MC74VHC50D reliable?
The price and inventory of MC74VHC50D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC50D is usually 5 days.
3.What payment methods are accepted for MC74VHC50D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC50D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC50D?
MC74VHC50D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC50D 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 MC74VHC50D?
For technical support, including MC74VHC50D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC50D requirements.
6.How does Aetrix verify that MC74VHC50D is sourced from the original manufacturer or authorized distributors?
All MC74VHC50D 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 MC74VHC50D meets industry standards.
7.What is the process for return or replacement of MC74VHC50D?
All MC74VHC50D units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC50D, 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 MC74VHC50D part is unused and in its original packaging.
Return procedure for MC74VHC50D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC74VHC50D Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
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…
