My Inquiry
My Account
STMicroelectronics 74VHCT08AMTR
- Part No.:
- 74VHCT08AMTR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74VHCT08AMTR.pdf
- Description:
- IC GATE AND 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,774
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74VHCT08AMTR from STMicroelectronics is a quad 2-input AND gate in high-speed CMOS technology, designed for 5V TTL-compatible digital logic interfacing. It delivers 4.7 ns typical propagation delay, ±8 mA symmetrical output drive, and operates across 4.5–5.5 V with 2 µA max quiescent current. Used in bus buffering, address decoding, and control signal gating in industrial microcontroller systems.
For engineers reviewing the 74VHCT08AMTR datasheet, 74VHCT08AMTR pinout, 74VHCT08AMTR application, or 74VHCT08AMTR equivalent, key selection criteria include TTL-level input compatibility (VIH ≥ 2 V, VIL ≤ 0.8 V), power-down protection on all I/Os, and guaranteed 8 mA output sink/source capability at VCC = 4.5–5.5 V.
Technical Context
The device implements four independent AND gates using sub-micron C2MOS process with buffered outputs, delivering high noise immunity and stable switching. Its input structure accepts 0–7 V regardless of supply voltage, enabling robust level-shifting between 5 V and 3 V domains.
All inputs and outputs feature ESD protection rated to 2 kV (HBM), and the internal circuit includes dedicated power-down protection diodes that remain functional even when VCC = 0 V. Propagation delays are balanced (tPLH ≅ tPHL) and specified under 15 pF and 50 pF load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| tPD (Typ) | 4.7 ns at VCC = 5 V, CL = 15 pF - enables high-speed synchronous logic at >100 MHz system clock edges |
| VCC Range | 4.5–5.5 V - ensures compatibility with standard 5 V supply rails and tolerance to line regulation drift |
| IOH/IOL (Min) | –8 mA / +8 mA - drives standard TTL loads directly without external pull-ups or buffers |
| VIH/VIL | ≥2.0 V / ≤0.8 V - guarantees reliable recognition of TTL output levels from legacy controllers or FPGAs |
| ICC (Max) | 2 µA at TA = 25°C - supports low-power standby modes in battery-backed or energy-sensitive systems |
| VOLP (Max) | 0.8 V at CL = 50 pF - limits ground bounce during simultaneous switching, critical for noise-sensitive analog co-location |
| ESD Rating | 2 kV HBM - meets IEC 61000-4-2 Level 2 for handling robustness in manufacturing and field service |
Pinout & Package
74VHCT08AMTR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with tape-and-reel delivery (MTR suffix). Dimensions conform to JEDEC MS-012, body width 3.9 mm, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | 1A–4A | First input of each AND gate - accepts TTL/CMOS logic levels; protected against overvoltage up to 7 V |
| 2, 5, 10, 13 | 1B–4B | Second input of each AND gate - identical electrical behavior and protection as A inputs |
| 3, 6, 8, 11 | 1Y–4Y | Respective AND gate outputs - provide symmetrical sourcing/sinking, rail-to-rail swing under load |
| 7 | GND | Digital ground reference - shared return path for all four gates; decoupling required within 10 mm |
| 14 | VCC | Positive supply - must be bypassed with 100 nF ceramic capacitor near pin to suppress AC noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V, VIL ≤ 0.8 V - eliminates need for level translators when interfacing with 74LS, 74F, or microcontroller GPIOs |
| Power-down protection | Inputs/outputs tolerate 0–7 V with VCC = 0 V - prevents back-driving and latch-up during hot-insertion or partial power loss |
| Symmetrical output drive | |IOH| = IOL ≥ 8 mA - ensures matched rise/fall times and consistent timing margins across logic families |
| Enhanced latch-up immunity | Qualified per JEDEC JESD78 - withstands >100 mA transient current without destructive latch-up |
| Low dynamic noise | VOLP ≤ 0.8 V at CL = 50 pF - reduces crosstalk into adjacent analog traces or RF sections on mixed-signal PCBs |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating and gating sensor interrupt signals before routing to MCU interrupt pins. IC Role / Device Role / Timing Role: Logic-level AND gate performing active-low enable masking of multiple sensor alerts. Use Value: Prevents spurious interrupts during power-up sequencing by requiring dual assertion, leveraging guaranteed 4.7 ns delay for deterministic response. | Use Scenario: Enabling CAN transceiver power only when both ignition status and sleep-wake command are asserted. IC Role / Device Role / Timing Role: Dual-input enable gate controlling high-side switch driver enable line. Use Value: Ensures fail-safe power gating with TTL-compatible thresholds, eliminating risk of false wake-up from noisy 12 V vehicle bus transients. |
| Medical Infusion Pump Controller | Test Equipment Digital Pattern Generator |
Use Scenario: Combining safety interlock signals (door closed + pressure OK) to authorize motor activation. IC Role / Device Role / Timing Role: Safety-critical combinatorial logic element enforcing hardware-enforced AND condition. Use Value: Meets IEC 62304 Class B requirements via deterministic propagation (tPLH ≅ tPHL) and 2 kV ESD-hardened I/O. | Use Scenario: Synchronizing pattern strobe and data valid signals before feeding FPGA-based waveform sequencer. IC Role / Device Role / Timing Role: Timing alignment gate ensuring setup/hold compliance at 50 MHz pattern rates. Use Value: Delivers 4.7 ns typical delay with <1 ns skew between channels, enabling precise edge alignment without programmable delay blocks. |
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 |
|---|---|---|---|
| SN74VHCT08PW | TSSOP-14 package; identical AC/DC specs but 0.65 mm pitch - requires finer trace routing and reflow profile adjustment | Better thermal dissipation in dense layouts; not drop-in compatible with SOIC footprints | Select when board space is constrained and assembly supports 0.65 mm pitch. |
| 74LCX08MTCX | Lower VCC range (2.0–3.6 V); 5 V tolerant inputs but no 5 V output swing - cannot drive TTL loads directly | Optimized for 3.3 V systems with mixed-voltage I/O; unsuitable for pure 5 V bus interfaces | Select only for 3.3 V core logic with level-shifted inputs; verify VOL/VOH under actual load. |
Compared with SN74VHCT08PW and 74LCX08MTCX, the 74VHCT08AMTR uniquely supports full 5 V operation with TTL-compatible outputs and SOIC-14 footprint - making it the only choice for legacy 5 V industrial designs requiring drop-in replacement and guaranteed 8 mA drive.
Availability
74VHCT08AMTR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump controllers, and test equipment digital pattern generators requiring stable component supply and long-term lifecycle support.
Supply support for 74VHCT08AMTR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with vertical manufacturing and broad portfolio coverage.
The VHCT logic family targets 5 V systems needing TTL compatibility, low power, and enhanced robustness - specifically engineered for industrial control, instrumentation, and legacy interface bridging where reliability and pin-for-pin upgrade paths matter.
FAQ
Is 74VHCT08AMTR compatible with 3.3 V microcontroller outputs?
Yes - its TTL-compatible inputs accept VIH ≥ 2.0 V, so standard 3.3 V CMOS outputs (typically 2.4–3.3 V high) meet this threshold. Input protection allows up to 7 V regardless of VCC, enabling safe interfacing without external resistors or clamps.
Can it drive a 50 Ω transmission line directly?
No - its 8 mA output drive corresponds to ~625 Ω minimum load at 5 V. For 50 Ω lines, use a dedicated line driver or buffer. However, it can drive 50 pF capacitive loads (e.g., PCB traces + input capacitance) with verified 4.7 ns delay and <0.8 V ground bounce.
What is the maximum operating temperature range?
The device is fully specified from –55 °C to +125 °C ambient, with DC and AC parameters guaranteed across this range. This makes it suitable for under-hood automotive, industrial enclosures, and extended-temperature instrumentation applications without derating.
Does it require external pull-up resistors on unused inputs?
No - unused inputs may be tied to VCC or GND directly. The device has no internal pull-ups; however, floating inputs are prohibited due to increased ICC and potential oscillation. External termination is mandatory, but resistors are optional if hard-wired to supply rails.
74VHCT08AMTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74VHCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74VHCT08AMTR FAQ
1.How can I place an order for 74VHCT08AMTR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT08AMTR 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 74VHCT08AMTR reliable?
The price and inventory of 74VHCT08AMTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT08AMTR is usually 5 days.
3.What payment methods are accepted for 74VHCT08AMTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT08AMTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT08AMTR?
74VHCT08AMTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT08AMTR 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 74VHCT08AMTR?
For technical support, including 74VHCT08AMTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT08AMTR requirements.
6.How does Aetrix verify that 74VHCT08AMTR is sourced from the original manufacturer or authorized distributors?
All 74VHCT08AMTR 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 74VHCT08AMTR meets industry standards.
7.What is the process for return or replacement of 74VHCT08AMTR?
All 74VHCT08AMTR units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT08AMTR, 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 74VHCT08AMTR part is unused and in its original packaging.
Return procedure for 74VHCT08AMTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74VHCT08AMTR 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
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
