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NXP Semiconductors 74AHC08D,112
- Part No.:
- 74AHC08D,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
74AHC08D,112.pdf
- Description:
- IC GATE AND
- Quantity:
- Payment:
- Shipping:
Inventory:39,102
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Product details
Overview
74AHC08D,112 from Nexperia is a quad 2-input AND gate IC in SO14 package, operating from 2.0 V to 5.5 V supply, featuring CMOS-level inputs, overvoltage-tolerant inputs up to 5.5 V, and propagation delays as low as 3.0 ns (VCC = 5.0 V, CL = 15 pF). It serves as a logic-level translator in mixed-voltage digital interfaces such as microcontroller I/O expansion and bus signal conditioning.
For engineers reviewing the 74AHC08D,112 datasheet, 74AHC08D,112 pinout, 74AHC08D,112 application, or 74AHC08D,112 equivalent, this device is selected for low-power, high-noise-immunity combinational logic in industrial control panels, sensor interface modules, and legacy TTL-to-CMOS voltage translation circuits where input overvoltage tolerance and -40 °C to +125 °C operation are required.
Technical Context
The 74AHC08D implements four independent 2-input AND gates with Schmitt-trigger action on all inputs, enabling robust noise rejection in noisy environments. Each gate performs Boolean multiplication (Y = A · B) with rail-to-rail output swing and guaranteed switching at VCC down to 2.0 V.
Its overvoltage-tolerant inputs allow safe interfacing between 3.3 V logic domains and 5 V systems without external level-shifting components. The device complies with JEDEC JESD78 Class II Level A latch-up immunity (>100 mA) and meets ANSI/ESDA/JEDEC JS-001 HBM (≥2000 V) and JS-002 CDM (≥1000 V) ESD specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports direct integration into both 3.3 V and 5 V systems without regulators |
| Propagation Delay (tpd) | 3.0 ns typical (VCC = 5.0 V, CL = 15 pF) - enables timing-critical signal gating in high-speed digital control paths |
| Input Voltage Tolerance | Up to 5.5 V independent of VCC - eliminates need for external clamping diodes when interfacing higher-voltage signals |
| Output Drive Strength | ±8.0 mA (VOH/VOL guaranteed at VCC = 4.5 V) - sufficient to drive multiple 74-series inputs or small capacitive loads |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive auxiliary modules and industrial motor drives |
| Power Dissipation (Ptot) | 500 mW (SO14 package, Tamb ≤ 100 °C) - allows sustained operation in compact enclosures with minimal heatsinking |
| Input Capacitance (CI) | 3.0 pF typical - minimizes loading on upstream drivers and preserves signal edge integrity |
Pinout & Package
74AHC08D,112 is housed in a plastic small outline package (SO14), SOT108-1, with 14 leads and 3.9 mm body width. Pin 1 is index-marked; pin 7 is GND; pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | 1A, 2A, 3A, 4A | First input of each AND gate - accepts CMOS-level signals up to 5.5 V regardless of VCC |
| 2, 5, 10, 13 | 1B, 2B, 3B, 4B | Second input of each AND gate - Schmitt-triggered for noise immunity on slow or noisy edges |
| 3, 6, 8, 11 | 1Y, 2Y, 3Y, 4Y | Respective AND gate outputs - rail-to-rail CMOS outputs capable of driving ≥10 LSTTL loads |
| 7 | GND | Ground reference - must be connected to system 0 V plane with low-inductance path for stable switching |
| 14 | VCC | Positive supply - bypassing with 100 nF ceramic capacitor near pin essential for noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Withstand 5.5 V input signals even at VCC = 2.0 V - enables safe mixed-voltage interconnect without external protection |
| Schmitt-trigger inputs | Hysteresis > 0.3 V (typical) - rejects sub-microsecond noise spikes common in industrial wiring environments |
| CMOS-level compatibility | VIH = 3.85 V (min) at VCC = 5.5 V - ensures reliable recognition of 3.3 V logic HIGH in 5 V systems |
| Low static current | ICC ≤ 2.0 μA (max) at VCC = 5.5 V - reduces quiescent power in battery-backed monitoring circuits |
| High ESD immunity | HBM ≥ 2000 V, CDM ≥ 1000 V - withstands handling and board-level electrostatic events without functional degradation |
Applications
| Industrial PLC I/O Expansion | Microcontroller GPIO Multiplexing |
|---|---|
Use Scenario: Adding discrete logic gating to isolate or enable groups of sensors and actuators in programmable logic controllers. IC Role / Device Role / Timing Role: Quad AND gate performing real-time signal enable/disable based on controller address lines and strobe signals. Use Value: Eliminates need for software-based bit masking by providing hardware-level gating with <3.0 ns latency and no CPU overhead. | Use Scenario: Expanding limited GPIO count on ARM Cortex-M0+ MCUs to manage LED arrays, button matrices, and peripheral chip selects. IC Role / Device Role / Timing Role: Logic combiner translating parallel MCU outputs into single-enable signals for SPI peripherals or display drivers. Use Value: Enables 4:1 signal reduction using only one SO14 IC, reducing PCB area versus discrete transistor solutions and improving timing predictability. |
| Legacy Bus Interface Translation | Power Sequencing Control |
Use Scenario: Interfacing modern 3.3 V FPGAs with legacy 5 V parallel buses (e.g., ISA-style data/address latching). IC Role / Device Role / Timing Role: Voltage-tolerant AND gate acting as bidirectional signal conditioner for handshake lines like /READY and /WAIT. Use Value: Provides level translation without direction control logic or external resistors, simplifying design and reducing BOM count. | Use Scenario: Generating precise power-on reset sequencing signals for multi-rail systems (e.g., core, I/O, analog supplies). IC Role / Device Role / Timing Role: Combinational gate enabling downstream rails only after upstream rails stabilize, using POR and enable signals as inputs. Use Value: Ensures deterministic power-up order with sub-10 ns propagation delay, preventing latch-up or brown-out in SoC-based systems. |
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 |
|---|---|---|---|
| 74AHCT08D,112 | TTL-compatible inputs (VIH = 2.0 V min), identical SO14 package and pinout | Better suited for interfacing with legacy 5 V TTL outputs; slightly higher ICC at VCC = 5 V | Select when driving from standard 5 V TTL sources without pull-ups |
| SN74LVC08APWR | Lower VCC range (1.65–5.5 V), higher drive (±24 mA), different pinout (TSSOP14) | Supports 1.8 V logic domains and higher capacitive loads; requires PCB redesign | Select for 1.8 V/3.3 V mixed-signal systems needing stronger output drive |
Compared with 74AHCT08D,112, the 74AHC08D,112 offers superior noise immunity and lower static current but requires higher input voltage thresholds; versus SN74LVC08APWR, it provides pin-compatible drop-in replacement in SO14 layouts but lacks 1.8 V compatibility and higher drive capability.
Availability
74AHC08D,112 is available at Aetrix Electronics and suitable for industrial automation controllers, sensor interface modules, and embedded power management systems requiring stable component supply across extended temperature ranges.
Supply support for 74AHC08D,112 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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions, with manufacturing rooted in process technology leadership and automotive-grade quality systems.
The 74AHC series targets general-purpose, low-power, high-speed CMOS logic applications in industrial, consumer, and communications equipment where wide supply range and robust ESD performance are critical.
FAQ
What is the maximum input voltage the 74AHC08D,112 can tolerate when VCC = 2.0 V?
The 74AHC08D,112 supports input voltages up to 5.5 V regardless of VCC level, per its overvoltage-tolerant input specification. This allows safe connection of 5 V signals to a 2.0 V-powered device without external clamping, provided input current remains within ±20 mA limits defined in Table 4.
Does the 74AHC08D,112 require external pull-up or pull-down resistors on unused inputs?
No. All inputs feature Schmitt-trigger action and defined logic thresholds; unused inputs must be tied to VCC or GND to prevent floating states and excessive ICC. Pull-up/pull-down resistors are unnecessary and may degrade noise margin or increase power consumption.
Can the 74AHC08D,112 drive a 50 pF load while maintaining specified propagation delay?
Yes. At VCC = 5.0 V and CL = 50 pF, the typical propagation delay is 4.2 ns with a maximum of 7.5 ns over -40 °C to +125 °C, as confirmed in Table 7. Output drive strength of ±8.0 mA ensures stable edge rates into this capacitive load without waveform distortion.
Is the 74AHC08D,112 qualified for automotive applications per AEC-Q100?
No. The 74AHC08D,112 is not AEC-Q100 qualified. While it operates from -40 °C to +125 °C, Nexperia explicitly states in Section 14 that non-automotive-qualified products are unsuitable for automotive use unless expressly designated. Automotive designs require parts marked "AEC-Q100 qualified" in the ordering code.
74AHC08D,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74AHC08D,112 FAQ
1.How can I place an order for 74AHC08D,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC08D,112 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 74AHC08D,112 reliable?
The price and inventory of 74AHC08D,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC08D,112 is usually 5 days.
3.What payment methods are accepted for 74AHC08D,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC08D,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC08D,112?
74AHC08D,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC08D,112 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 74AHC08D,112?
For technical support, including 74AHC08D,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC08D,112 requirements.
6.How does Aetrix verify that 74AHC08D,112 is sourced from the original manufacturer or authorized distributors?
All 74AHC08D,112 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 74AHC08D,112 meets industry standards.
7.What is the process for return or replacement of 74AHC08D,112?
All 74AHC08D,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC08D,112, 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 74AHC08D,112 part is unused and in its original packaging.
Return procedure for 74AHC08D,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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