My Inquiry
My Account
Nexperia USA Inc. 74HCT08BQ,115
- Part No.:
- 74HCT08BQ,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74HCT08BQ,115.pdf
- Description:
- IC GATE AND 4CH 2-INP 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,574
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HCT08BQ,115 from Nexperia is a quad 2-input AND gate IC with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), operating from 4.5 V to 5.5 V supply, rated for -40 °C to +125 °C, and housed in a DHVQFN14 (SOT762-1) package with 0.5 mm pitch and thermal-enhanced exposed pad. It delivers 14 ns typical propagation delay (tpd) at VCC = 4.5 V and CL = 50 pF, enabling reliable logic gating in industrial control timing paths.
For engineers reviewing the 74HCT08BQ,115 datasheet, 74HCT08BQ,115 pinout, 74HCT08BQ,115 application, or 74HCT08BQ,115 equivalent, key selection criteria include TTL-level input compatibility, 14-terminal QFN thermal performance, guaranteed operation up to +125 °C, and low dynamic power dissipation (CPD = 20 pF).
Technical Context
This device implements four independent 2-input AND gates using silicon-gate CMOS technology. Each gate features clamp diodes on all inputs, permitting safe interface to voltages exceeding VCC when used with current-limiting resistors. The logic function strictly follows Boolean AND behavior: output HIGH only when both inputs are HIGH.
It complies with JEDEC JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V) standards and meets HBM ESD robustness >2000 V and CDM >1000 V. Input thresholds are fixed for TTL compatibility-VIH ≥ 2.0 V and VIL ≤ 0.8 V across full temperature and supply range-ensuring interoperability with legacy 5 V logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate; each gate outputs HIGH only if both inputs are HIGH-enables basic combinational logic routing and enable control. |
| Supply Voltage Range | 4.5 V to 5.5 V; ensures compatibility with standard 5 V TTL and mixed-voltage systems without level translation. |
| Propagation Delay (tpd) | 14 ns typical (VCC = 4.5 V, CL = 50 pF); supports reliable 35 MHz maximum toggle frequency in synchronous logic paths. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max (VCC = 4.5–5.5 V); guarantees clean recognition of TTL logic levels without marginal switching. |
| Operating Temperature | -40 °C to +125 °C; qualified for under-hood automotive modules, industrial PLC I/O, and high-ambient embedded controllers. |
| Power Dissipation Cap | Ptot = 500 mW (Tamb ≤ 98 °C), derating 9.6 mW/K above; enables stable operation in thermally constrained QFN layouts. |
| ESD Robustness | HBM >2000 V, CDM >1000 V; reduces risk of field failure during handling and board assembly in uncontrolled environments. |
Pinout & Package
DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, 14 terminals, 0.5 mm pitch, thermal-enhanced exposed pad (non-soldered or floating/grounded per design). Pin 1 index area located at top-left corner of top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A | Data input A for gates 1–4 | Accept TTL-level signals; clamp diodes allow overvoltage tolerance with series resistor. |
| 1B, 2B, 3B, 4B | Data input B for gates 1–4 | Independent second input per gate; identical electrical specs to A inputs. |
| 1Y, 2Y, 3Y, 4Y | Data output Y for gates 1–4 | CMOS push-pull output capable of ±4 mA drive at VCC = 4.5 V; fan-out ≥ 10 LS-TTL loads. |
| GND (Pin 7) | Ground reference | Primary 0 V return path; must be low-impedance for noise immunity and timing stability. |
| VCC (Pin 14) | Positive supply | Connects to 4.5–5.5 V rail; requires local 100 nF ceramic decoupling within 3 mm. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 4.5–5.5 V supply-eliminates need for external level shifters when interfacing with 74LS or microcontroller GPIO. |
| Wide temperature range | Specified from -40 °C to +125 °C-supports deployment in engine control units, motor drives, and outdoor industrial gateways. |
| Input clamp diodes | Integrated protection allows safe connection to signals up to VCC + 0.5 V using series current-limiting resistors-reduces external protection component count. |
| Low dynamic power | CPD = 20 pF-limits switching power to <1 μW/MHz per gate at 5 V, critical for battery-backed or thermally limited designs. |
| High noise immunity | Typical noise margin >1.2 V at VCC = 5 V-prevents false triggering in electrically noisy factory automation environments. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Enabling discrete sensor inputs (e.g., door open/closed, seatbelt latch) before feeding into MCU GPIO. IC Role / Device Role / Timing Role: Logic-level gating and signal conditioning; performs real-time AND of dual safety interlocks before actuation. Use Value: Ensures dual-redundant input validation with sub-20 ns latency-meets ASIL-B functional safety timing constraints for non-critical control paths. |
Use Scenario: Combining ignition status and HVAC request signals to enable blower motor driver enable line. IC Role / Device Role / Timing Role: Combinational logic gate; synchronizes two asynchronous vehicle bus-derived signals into single hardware-enable path. Use Value: Eliminates software polling overhead and provides deterministic hardware-level response <25 ns-improves system responsiveness and reduces MCU load. |
| Medical Infusion Pump Control | Test Equipment Signal Routing |
Use Scenario: Validating simultaneous "start" button press and door-closed confirmation before initiating fluid delivery. IC Role / Device Role / Timing Role: Safety-critical interlock gate; output directly drives enable input of motor driver IC. Use Value: Provides fail-safe hardware-enforced AND condition with guaranteed -40 °C to +125 °C operation-reduces reliance on firmware-based checks. |
Use Scenario: Gating DUT clock or trigger signals based on test mode select lines in automated test fixtures. IC Role / Device Role / Timing Role: Signal path selector; routes or blocks high-speed digital stimuli using static control bits. Use Value: Delivers consistent 14 ns propagation delay across temperature-enables precise timing alignment in production test sequences. |
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 |
|---|---|---|---|
| 74HCT08PW,118 | TSSOP14 package (4.4 mm width, 0.65 mm pitch); same electrical specs and temp range. | Better suited for manual rework or prototyping due to gull-wing leads; lower thermal conductivity than DHVQFN. | Select when board assembly uses reflow-only processes with optical inspection capability and thermal management is less critical. |
| SN74HCT08DR | SOIC-14 (3.9 mm width, 1.27 mm pitch); TI-manufactured; VIH/VIL identical but tpd = 18 ns typical at 5 V. | Compatible with legacy through-hole or wave-solder processes; slightly higher propagation delay affects high-speed timing margins. | Choose for drop-in replacement in existing SOIC footprints where thermal performance is secondary to mechanical compatibility. |
Compared with 74HCT08BQ,115, the PW variant offers easier visual inspection but reduced thermal efficiency, while the SN74HCT08DR trades packaging flexibility for 4 ns slower propagation-making the BQ optimal for space-constrained, thermally demanding, high-speed industrial nodes.
Availability
74HCT08BQ,115 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump interlocks, and automated test equipment requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for 74HCT08BQ,115 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 specializing in high-performance, energy-efficient logic, analog, and discrete components, with manufacturing rooted in process innovation and automotive-grade reliability.
The 74HCT series targets industrial and automotive applications requiring TTL-compatible logic with enhanced noise immunity and extended temperature operation-designed specifically for robust interfacing between legacy and modern digital subsystems.
FAQ
Is the exposed thermal pad on the DHVQFN14 package required to be soldered?
No. Per Nexperia's datasheet, the exposed pad (terminal 1 index area) has no electrical or mechanical requirement to be soldered. If connected, it must remain electrically floating or tied to GND-never left as a floating metal island that could couple noise or cause solder voiding issues.
Can 74HCT08BQ,115 operate reliably at 3.3 V supply?
No. The 74HCT08BQ,115 is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH ≥ 2.0 V) become marginal, and output drive strength degrades significantly-use 74HC08BQ,115 instead for 2.0–6.0 V wide-supply operation including 3.3 V.
What is the maximum output current per pin, and how does it affect fan-out?
The absolute maximum output current is ±25 mA per pin, but recommended steady-state drive is ±4.0 mA (VOH/VOL tested at this level). At ±4 mA, it can drive ≥10 LS-TTL loads-exceeding this current risks violating VOL/VOH specs and increases propagation delay variation across temperature.
Does this device support hot insertion or live I/O connection?
No. While input clamp diodes provide overvoltage tolerance, the device lacks explicit hot-swap protection circuitry. Connecting inputs to active signals before VCC ramp-up may exceed IIK limits (±20 mA), risking latch-up or parametric shift-always power VCC before applying input signals.
74HCT08BQ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-VFQFN Exposed Pad
- 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, 4mA
- 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-DHVQFN (2.5x3)
74HCT08BQ,115 FAQ
1.How can I place an order for 74HCT08BQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT08BQ,115 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 74HCT08BQ,115 reliable?
The price and inventory of 74HCT08BQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT08BQ,115 is usually 5 days.
3.What payment methods are accepted for 74HCT08BQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT08BQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT08BQ,115?
74HCT08BQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT08BQ,115 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 74HCT08BQ,115?
For technical support, including 74HCT08BQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT08BQ,115 requirements.
6.How does Aetrix verify that 74HCT08BQ,115 is sourced from the original manufacturer or authorized distributors?
All 74HCT08BQ,115 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 74HCT08BQ,115 meets industry standards.
7.What is the process for return or replacement of 74HCT08BQ,115?
All 74HCT08BQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT08BQ,115, 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 74HCT08BQ,115 part is unused and in its original packaging.
Return procedure for 74HCT08BQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT08BQ,115 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…
