My Inquiry
My Account
Nexperia USA Inc. 74HCT08D/AUJ
- Part No.:
- 74HCT08D/AUJ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT08D/AUJ.pdf
- Description:
- IC GATE AND 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,087
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HCT08D/AUJ from Nexperia is a quad 2-input AND gate logic IC with TTL-compatible input thresholds, 4.5 V to 5.5 V supply operation, -40 °C to +125 °C temperature range, and SO14 (SOT108-1) package. It performs basic Boolean conjunction across four independent channels and is used in digital control signal conditioning, bus gating, and enable logic in industrial microcontroller interfaces.
For engineers reviewing the 74HCT08D/AUJ datasheet, 74HCT08D/AUJ pinout, 74HCT08D/AUJ application, or 74HCT08D/AUJ equivalent, this page delivers verified electrical parameters, real-world timing behavior at 5 V/50 pF, SO14 mechanical dimensions, and validated alternatives for logic-level translation and fan-out expansion tasks.
Technical Context
This device implements four independent 2-input AND gates using silicon-gate CMOS technology with TTL-level input compatibility-VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5.0 V. Each gate exhibits rail-to-rail output swing and supports fan-out of ≥10 LS-TTL loads.
Propagation delay is 14 ns (typ) to 36 ns (max) at VCC = 4.5 V and CL = 50 pF; transition time is 7–22 ns over temperature. Input clamping diodes allow safe interfacing to voltages exceeding VCC when current-limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate - four independent Boolean AND operations per package |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard 5 V TTL systems without level-shifting |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - ensures reliable recognition of legacy TTL outputs |
| Propagation Delay | 14 ns (typ), 36 ns (max) at VCC = 4.5 V, CL = 50 pF - defines worst-case combinatorial path timing |
| Output Drive | ±4.0 mA (VOH/VOL) - sufficient to drive 10 LS-TTL inputs or small capacitive loads |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and under-hood environments |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - enables robust handling in automated assembly lines |
Pinout & Package
74HCT08D/AUJ uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A | Data input A | First input of each AND gate; accepts TTL- or CMOS-level signals |
| 1B, 2B, 3B, 4B | Data input B | Second input of each AND gate; electrically identical to A inputs |
| 1Y, 2Y, 3Y, 4Y | Data output | Active-high AND result; drives downstream logic or small loads |
| 7 | GND | Ground reference (0 V); mandatory return path for all internal currents |
| 14 | VCC | Positive supply (4.5–5.5 V); powers all four gates and internal bias networks |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | Enables direct connection to 74LS, 74F, and other legacy TTL families without level shifters |
| Wide operating temperature | Rated from -40 °C to +125 °C - supports deployment in motor controls, power supplies, and factory automation |
| Input clamp diodes | Permits safe interface to signals up to VCC + 0.5 V when series current limiting is applied |
| Low quiescent current | ICC ≤ 40 μA max at VCC = 5.5 V - minimizes static power in battery-backed or low-power standby modes |
| JEDEC-compliant packaging | SO14 (SOT108-1) footprint ensures compatibility with standard PCB assembly processes and reflow profiles |
Applications
| Industrial PLC I/O Conditioning | Microcontroller Peripheral Enable Logic |
|---|---|
Use Scenario: Isolating and gating sensor status signals before feeding into a programmable logic controller's digital input module. IC Role / Device Role / Timing Role: Performs synchronous AND of two fault flags (e.g., overtemp AND overcurrent) to generate a single hardware shutdown signal. Use Value: Reduces external component count by replacing discrete diode-OR or resistor-transistor logic with a single 14-pin IC that meets IEC 61000-4 immunity requirements. |
Use Scenario: Enabling SPI or UART peripherals only when both system reset is deasserted and voltage rails are stable. IC Role / Device Role / Timing Role: Acts as a dual-input enable gate controlling peripheral power-on sequencing via MCU GPIOs. Use Value: Guarantees strict power-up order compliance with <50 ns propagation uncertainty, eliminating race conditions in mixed-voltage SoC designs. |
| Legacy Bus Interface Translation | Digital Power Supply Sequencing |
Use Scenario: Interfacing a modern ARM-based host to an older ISA-style parallel bus where address strobes must be gated with data valid. IC Role / Device Role / Timing Role: Combines address latch enable (ALE) and write strobe (/WR) to produce a synchronized memory write pulse. Use Value: Maintains setup/hold timing margins under 20 ns skew while tolerating 5 V TTL input levels on both pins - no external resistors or buffers needed. |
Use Scenario: Coordinating startup of multiple DC-DC converters in telecom line cards where secondary rails must activate only after primary regulation is confirmed. IC Role / Device Role / Timing Role: Gates the enable signal to a buck converter using PGOOD from a front-end controller AND a thermal OK flag. Use Value: Provides fail-safe power sequencing with sub-microsecond response and guaranteed noise immunity (>400 mV HCMOS margin) in high-noise power chassis. |
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 |
|---|---|---|---|
| 74HC08D | CMOS input thresholds (VIH = 3.15 V min @ VCC = 4.5 V); wider 2.0–6.0 V supply range | Requires level shifting when driven by 5 V TTL sources; better for mixed-supply or battery-powered systems | Select when interfacing to HC-family logic or operating below 4.5 V - not drop-in for TTL sources |
| SN74LS08DR | Bipolar TTL process; VIH = 2.0 V, VIL = 0.8 V same, but ICC = 19 mA typical and slower (15 ns typ) | Higher power, lower noise immunity, and incompatible with CMOS output drivers due to loading | Choose only for legacy board replacements where LS-series loading and timing must be preserved |
Compared with 74HCT08D/AUJ, 74HC08D offers broader supply flexibility but lacks native TTL input compatibility, while SN74LS08DR matches input thresholds but consumes ~500× more static power and cannot drive CMOS loads without buffering.
Availability
74HCT08D/AUJ is available at Aetrix Electronics and suitable for industrial PLC I/O conditioning, microcontroller peripheral enable logic, legacy bus interface translation, and digital power supply sequencing requiring stable component supply across extended temperature ranges.
Supply support for 74HCT08D/AUJ 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
Nexperia is a global semiconductor expert headquartered in Nijmegen, Netherlands, specializing in high-volume logic, analog, and discrete components with emphasis on reliability, efficiency, and manufacturability.
74HCT08D/AUJ belongs to Nexperia's 74HCT logic family - engineered for seamless interoperability between TTL and CMOS systems in industrial, automotive (non-safety), and computing applications.
FAQ
What is the maximum clock frequency supported by 74HCT08D/AUJ?
74HCT08D/AUJ is a combinational logic device with no internal clock; it does not operate at a "clock frequency." Its usable toggle rate depends on propagation delay and load capacitance. With CL = 50 pF and VCC = 4.5 V, the maximum reliable input transition rate is approximately 14 MHz (based on tpd max = 36 ns and minimum pulse width constraints).
Can 74HCT08D/AUJ drive LED indicators directly?
No - its output current rating is ±4.0 mA (sink/source), insufficient for most visible LEDs requiring 5–20 mA. It can drive high-efficiency indicator LEDs (<2 mA) with appropriate series resistance, but dedicated LED drivers or buffer stages are recommended for standard 5 mm LEDs.
Is 74HCT08D/AUJ pin-compatible with 74LS08?
Yes - both use identical SO14 pinouts and implement quad 2-input AND functionality. However, 74HCT08D/AUJ draws significantly less supply current (μA vs. mA), has higher noise immunity, and requires no pull-up resistors on unused inputs, unlike bipolar 74LS08.
Does 74HCT08D/AUJ support mixed-voltage operation (e.g., 3.3 V inputs with 5 V supply)?
No - inputs are TTL-compatible, meaning VIH = 2.0 V min and VIL = 0.8 V max at VCC = 5 V. A 3.3 V logic high is fully recognized, but the device itself must be powered at 4.5–5.5 V; it does not tolerate 3.3 V VCC operation nor guarantee 3.3 V output levels.
74HCT08D/AUJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 4mA, 5.2mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 24ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HCT08D/AUJ FAQ
1.How can I place an order for 74HCT08D/AUJ through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT08D/AUJ 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 74HCT08D/AUJ reliable?
The price and inventory of 74HCT08D/AUJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT08D/AUJ is usually 5 days.
3.What payment methods are accepted for 74HCT08D/AUJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT08D/AUJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT08D/AUJ?
74HCT08D/AUJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT08D/AUJ 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 74HCT08D/AUJ?
For technical support, including 74HCT08D/AUJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT08D/AUJ requirements.
6.How does Aetrix verify that 74HCT08D/AUJ is sourced from the original manufacturer or authorized distributors?
All 74HCT08D/AUJ 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 74HCT08D/AUJ meets industry standards.
7.What is the process for return or replacement of 74HCT08D/AUJ?
All 74HCT08D/AUJ units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT08D/AUJ, 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 74HCT08D/AUJ part is unused and in its original packaging.
Return procedure for 74HCT08D/AUJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT08D/AUJ 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
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…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
