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onsemi MC74VHCT08AMELG
- Part No.:
- MC74VHCT08AMELG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC74VHCT08AMELG.pdf
- Description:
- IC GATE AND 4CH 2-INP SOEIAJ-14
- Quantity:
- Payment:
- Shipping:
Inventory:1,812
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Product details
Overview
MC74VHCT08AMELG from onsemi is a quad 2-input AND gate in TSSOP-14 package, fabricated with silicon gate CMOS technology. It delivers TTL-compatible inputs (VIL = 0.8 V, VIH = 2.0 V), 5.0 V CMOS-level output swing, and operates across 2.0–5.5 V supply range. Its 4.3 ns typical propagation delay at 5 V enables use in level-shifting logic interfaces between 3.3 V and 5.0 V systems.
For engineers reviewing the MC74VHCT08AMELG datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage tolerance up to 7.0 V, power-down input protection, balanced propagation delays, latchup immunity >300 mA, and Pb-free RoHS-compliant TSSOP-14 packaging.
Technical Context
The MC74VHCT08AMELG implements four independent AND gates with buffered outputs for high noise immunity and stable switching. Its input structures tolerate voltages from 0 V to 5.5 V regardless of VCC, and remain protected even when VCC = 0 V-enabling safe hot-insertion and battery-backup operation.
Internally composed of three-stage logic including input clamping diodes and output drive stages, it supports full 5.0 V rail-to-rail output swing while accepting 3.3 V TTL-level inputs. Input rise/fall time is specified up to 20 ns/V at VCC = 5.0 V ±0.5 V, ensuring compatibility with standard logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4.3 ns (typ) at VCC = 5 V, CL = 15 pF - enables high-speed digital control timing in mixed-voltage systems |
| Supply Voltage Range | 2.0 V to 5.5 V - supports operation across 3.3 V and 5.0 V domains without level shifters |
| Input Voltage Tolerance | −0.5 V to +7.0 V - allows interfacing 5.0 V systems to 3.0 V logic without external protection |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to drive multiple CMOS/TTL loads directly |
| Quiescent ICC | 2.0 µA (max) at TA = 25°C - ensures ultra-low static power in battery-backed or standby circuits |
| ESD Rating | HBM >2000 V, MM >200 V - provides robust handling during board assembly and field service |
| Operating Temperature | −40°C to +125°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
TSSOP-14 (Case 948G), 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not present, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 12, 13 | Input A/B per gate | Dedicated AND gate inputs; each pair (e.g., Pin 1 & 2) feeds one gate; tolerant to 7.0 V regardless of VCC |
| 3, 6, 10, 11 | Output Y per gate | CMOS-buffered outputs delivering rail-to-rail swing; capable of sourcing/sinking ±8 mA |
| 7 | GND | Ground reference for all logic and I/O; must be connected before applying inputs or VCC |
| 14 | VCC | Positive supply rail; decoupling capacitor (0.1 µF) required within 5 mm for stable high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V, VIL = 0.8 V at VCC = 5 V - eliminates need for external level translators when interfacing legacy 5 V TTL |
| Power-down input protection | Inputs remain functional and non-damaging even when VCC = 0 V - critical for hot-swap and backup-power applications |
| Balanced tPLH/tPHL | Typical 4.3 ns both ways at 5 V - ensures symmetrical timing margins in synchronous logic paths |
| Latchup immunity | Exceeds 300 mA per JEDEC JESD78 - prevents destructive latchup under transient overvoltage or ESD stress |
| Pb-free & RoHS compliant | Meets EU Directive 2011/65/EU and JESD201A - suitable for consumer, industrial, and automotive production |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Isolating and conditioning sensor signals before microcontroller ADC sampling in programmable logic controllers. IC Role / Device Role / Timing Role: Logic-level AND gate performing signal enable gating and voltage-domain translation from 5 V sensors to 3.3 V MCU inputs. Use Value: Eliminates external level shifters by accepting 5 V inputs while operating from 3.3 V supply and driving 3.3 V logic levels reliably. | Use Scenario: Controlling LED driver enable lines based on dual safety inputs (e.g., door open + ignition status) in vehicle interior lighting modules. IC Role / Device Role / Timing Role: Quad AND gate implementing hardware-based interlock logic with sub-5 ns propagation for fail-safe response. Use Value: Delivers deterministic <5 ns decision latency and withstands −40°C to +125°C ambient without derating - meeting AEC-Q100 Grade 1 requirements. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
Use Scenario: Enabling analog front-end channel selection only when calibration and power-good signals are simultaneously asserted. IC Role / Device Role / Timing Role: Hardware gating element ensuring analog path activation occurs exclusively under validated system conditions. Use Value: Prevents erroneous signal acquisition via hardwired logic - avoids firmware dependency and guarantees startup sequence integrity. | Use Scenario: Synchronizing trigger pulses across multiple measurement channels using common clock and enable signals. IC Role / Device Role / Timing Role: Timing combiner generating precise ANDed strobes for simultaneous data capture across DMM or oscilloscope channels. Use Value: Provides matched propagation delay (<0.5 ns skew between gates) and low dynamic noise (VOLP ≤ 0.8 V) to preserve signal fidelity during high-resolution sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC08APWR | Lower VCC range (1.65–3.6 V); no 5 V tolerant inputs; max tPD = 3.9 ns at 3.3 V | Restricted to 3.3 V-only systems; unsuitable for 5 V interface or mixed-voltage translation | Select when operating exclusively at 3.3 V and lowest possible propagation delay is prioritized over voltage flexibility |
| 74AHC08PW,118 | Wider VCC range (2–5.5 V); 5 V tolerant inputs; tPD = 5.0 ns (typ) at 5 V; higher ICC (4 µA max) | Compatible for same voltage translation roles but lacks AEC-Q100 qualification and has higher static current | Choose for cost-sensitive industrial designs where automotive qualification is not required and 0.7 ns slower delay is acceptable |
Compared with SN74LVC08APWR and 74AHC08PW,118, the MC74VHCT08AMELG uniquely combines 5 V input tolerance, 4.3 ns speed at 5 V, AEC-Q100 qualification, and <2 µA quiescent current - making it optimal for automotive and industrial mixed-voltage control logic where reliability and voltage interoperability are critical.
Availability
MC74VHCT08AMELG is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical diagnostic equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MC74VHCT08AMELG 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 focused on energy-efficient electronics, with leadership in automotive, industrial, cloud, and IoT markets.
The MC74VHCT08AMELG belongs to the VHCT logic family, designed specifically for seamless voltage-level translation between 3.3 V and 5.0 V systems while maintaining TTL compatibility and high noise immunity.
FAQ
What is the maximum input voltage rating for MC74VHCT08AMELG?
The MC74VHCT08AMELG supports DC input voltages from −0.5 V to +7.0 V, independent of VCC. This allows safe interfacing of 5.0 V signals into a 3.3 V-powered MC74VHCT08AMELG without external clamping, and protects against overvoltage during hot insertion or supply sequencing faults.
Does MC74VHCT08AMELG support operation at 3.3 V supply?
Yes, MC74VHCT08AMELG is fully specified for operation from 2.0 V to 5.5 V, including 3.3 V. At VCC = 3.3 V, it maintains TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V) and delivers rail-to-rail CMOS output swing, enabling direct connection to 3.3 V microcontrollers and FPGAs.
Is MC74VHCT08AMELG pin-compatible with standard 74-series AND gates?
Yes, MC74VHCT08AMELG uses the industry-standard 14-pin TSSOP layout matching the 7408 logic function. Pin assignments for inputs (A1–B4), outputs (Y1–Y4), VCC (Pin 14), and GND (Pin 7) conform to JEDEC MS-012, ensuring drop-in replacement for SOIC-14 and TSSOP-14 variants of 74HC08, 74HCT08, and 74LS08 in space-constrained designs.
What is the thermal performance of MC74VHCT08AMELG in TSSOP-14 package?
The MC74VHCT08AMELG in TSSOP-14 (Case 948G) has a power dissipation limit of 450 mW in still air, with derating of −6.1 mW/°C above 65°C. Its thermal resistance θJA is 130°C/W, allowing continuous operation up to +125°C ambient when PCB copper area and airflow meet IPC-2221 Class B guidelines.
How does MC74VHCT08AMELG handle unused inputs?
Unused inputs on MC74VHCT08AMELG must be tied to a valid logic level - either VCC or GND - to prevent floating nodes that cause increased ICC, oscillation, or EMI. The device's input protection structure tolerates voltages up to 7.0 V, so tying to VCC is safe even if VCC is 3.3 V and the system has 5 V rails elsewhere.
MC74VHCT08AMELG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHCT
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- AND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 7.9ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOEIAJ-14
MC74VHCT08AMELG FAQ
1.How can I place an order for MC74VHCT08AMELG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHCT08AMELG 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 MC74VHCT08AMELG reliable?
The price and inventory of MC74VHCT08AMELG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHCT08AMELG is usually 5 days.
3.What payment methods are accepted for MC74VHCT08AMELG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHCT08AMELG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHCT08AMELG?
MC74VHCT08AMELG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHCT08AMELG 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 MC74VHCT08AMELG?
For technical support, including MC74VHCT08AMELG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHCT08AMELG requirements.
6.How does Aetrix verify that MC74VHCT08AMELG is sourced from the original manufacturer or authorized distributors?
All MC74VHCT08AMELG 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 MC74VHCT08AMELG meets industry standards.
7.What is the process for return or replacement of MC74VHCT08AMELG?
All MC74VHCT08AMELG units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHCT08AMELG, 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 MC74VHCT08AMELG part is unused and in its original packaging.
Return procedure for MC74VHCT08AMELG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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