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Diodes Incorporated 74AHCT08S14-13
- Part No.:
- 74AHCT08S14-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHCT08S14-13.pdf
- Description:
- IC GATE AND 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
74AHCT08S14-13 from Diodes Incorporated is a quadruple 2-input AND gate IC in SO-14 package, operating at 4.5V–5.5V supply, delivering TTL-compatible inputs, 8mA output drive, Schmitt-trigger inputs, and propagation delay as low as 3.4ns (typ) at 5.5V with 15pF load - used in PC motherboard logic control, peripheral interface signal gating, and digital set-top box timing coordination.
For engineers reviewing the 74AHCT08S14-13 datasheet, 74AHCT08S14-13 pinout, 74AHCT08S14-13 application, or 74AHCT08S14-13 equivalent, key selection criteria include input voltage compatibility (VIH ≥ 2.0V, VIL ≤ 0.8V), output drive capability (IOH/ IOL = ±8mA), propagation delay budget (tPD ≤ 9.0ns over –40°C to +125°C), and SO-14 thermal/mechanical fit for legacy PCB layouts.
Technical Context
This device implements four independent non-inverting Boolean AND functions (Y = A • B) using advanced CMOS technology with TTL-level input thresholds. Each gate features Schmitt-trigger action on both inputs, enabling robust noise immunity for slow-rising or noisy control signals in industrial I/O interfaces.
It operates strictly within 4.5V–5.5V VCC, with guaranteed VIH/VIL thresholds of 2.0V/0.8V across temperature, and supports fan-out of ≥10 LS-TTL loads. Absolute maximum ratings include ±20mA clamp current, 2kV HBM ESD protection, and junction temperature up to +150°C - confirming suitability for embedded control and consumer electronics power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5V to 5.5V - ensures compatibility with standard 5V logic rails and tolerance against supply ripple in PC and peripheral designs. |
| VIH / VIL | 2.0V / 0.8V - guarantees reliable recognition of TTL-level inputs without level-shifting circuitry. |
| IOH / IOL | –8mA / +8mA at VCC = 4.5V - drives standard LS-TTL loads directly and supports mixed-logic interfacing. |
| tPD (max) | 9.0ns at –40°C to +125°C, CL = 15pF - enables use in sub-100MHz synchronous logic paths with margin. |
| Cpd per Gate | 14.8pF at f = 1MHz - determines dynamic power consumption (~0.4mW/MHz/gate at 5V) for low-power system budgeting. |
| ESD HBM | 2000V - exceeds JEDEC JESD22-A114A, supporting handling in non-ESD-controlled assembly environments. |
Pinout & Package
74AHCT08S14-13 is housed in a 14-pin Small Outline (SO-14) package with 1.27mm pitch, 8.6mm body width, and 3.9mm body height - compatible with IPC-7351B SOIC14_STD land pattern and reflow-solderable per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | Input A (Gate 1–4) | First operand input for each AND gate; Schmitt-triggered for noise rejection on slow edges. |
| 2, 5, 10, 13 | Input B (Gate 1–4) | Second operand input; electrically identical to Pin A, enabling symmetric logic placement. |
| 3, 6, 8, 11 | Output Y (Gate 1–4) | Push-pull CMOS output capable of sourcing/sinking 8mA - no external pull-ups required. |
| 7 | GND | Logic ground reference; must be low-impedance connection to minimize switching noise coupling. |
| 14 | VCC | Primary power supply; decoupling capacitor (0.1µF ceramic) required within 5mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables clean logic transitions on slow or noisy signals (e.g., front-panel switches, sensor outputs) without external hysteresis circuitry. |
| TTL-compatible input thresholds | Eliminates need for level translators when interfacing with legacy 5V microcontrollers or FPGA I/O banks configured for TTL standards. |
| 8mA output drive strength | Directly drives LS-TTL loads or multiple CMOS inputs (fan-out ≥10), reducing board space and component count. |
| –40°C to +125°C operation | Validated performance across extended industrial temperature range - suitable for automotive infotainment and network equipment. |
Applications
| PC Motherboard Control Logic | External Hard Drive Interface Gating |
|---|---|
Use Scenario: Enabling/disabling reset or clock signals to peripheral controllers based on BIOS configuration or thermal state. IC Role / Device Role / Timing Role: Signal-level AND gate performing enable logic for PCIe slot power sequencing and SATA link initialization. Use Value: Ensures deterministic timing alignment between host controller and storage device during hot-plug events, avoiding bus contention. | Use Scenario: Gating interrupt request lines from USB-to-SATA bridge ICs before routing to CPU interrupt controller. IC Role / Device Role / Timing Role: Synchronous logic gate synchronizing edge-sensitive IRQ assertions with system clock domain. Use Value: Prevents spurious interrupts caused by asynchronous signal metastability, improving system reliability under high I/O load. |
| DVD Player Front-Panel Input Decoding | Set-Top Box IR Remote Signal Conditioning |
Use Scenario: Combining button press detection and mode-lock status to generate valid keypress strobes for MCU scanning. IC Role / Device Role / Timing Role: Combinational logic element converting mechanical switch bounce into clean, debounced digital pulses. Use Value: Reduces firmware overhead for software debouncing and eliminates need for RC filters or dedicated debounce ICs. | Use Scenario: Validating IR receiver output pulses by AND-ing carrier detect and data valid signals before MCU input capture. IC Role / Device Role / Timing Role: Pulse validation gate ensuring only fully formed IR frames trigger decode routines. Use Value: Suppresses false triggers from ambient light interference or partial frame reception, increasing remote command accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHCT08DR | Same logic function and electrical specs; SO-14 package; TI's version has slightly higher ICC (max 50μA vs 40μA) and identical tPD. | Identical pinout and footprint; validated for TI-based reference designs in networking equipment. | Select when sourcing from TI-authorized channels or aligning with existing TI BOMs. |
| 74LVC08AD,118 | Lower VCC range (1.65V–3.6V); LVTTL-compatible inputs; 24mA drive; no Schmitt-trigger inputs. | Not suitable for 5V systems; requires level translation if interfacing with 5V peripherals. | Choose only for 3.3V-only designs where higher speed (tPD = 2.5ns typ) and lower power justify redesign effort. |
Compared with SN74AHCT08DR, 74AHCT08S14-13 offers tighter ICC spec and same robustness; versus 74LVC08AD, it provides native 5V operation and noise-immune inputs - making it optimal for legacy 5V consumer electronics upgrades without architecture change.
Availability
74AHCT08S14-13 is available at Aetrix Electronics and suitable for PC motherboard control logic, external hard drive interface gating, and DVD player front-panel decoding requiring stable component supply and long-term industrial availability.
Supply support for 74AHCT08S14-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, industry-qualified components for computing, consumer, and industrial markets.
The 74AHCT logic family targets cost-sensitive, high-volume 5V digital systems requiring TTL compatibility, low static power, and extended temperature operation - especially in PC peripherals and broadcast equipment.
FAQ
Can 74AHCT08S14-13 operate reliably at 4.5V minimum supply?
Yes. The device is fully specified from 4.5V to 5.5V, with guaranteed VIH ≥ 2.0V and VOL ≤ 0.55V at 4.5V/8mA load across –40°C to +125°C. Propagation delay remains within 9.0ns max, meeting timing closure for 50MHz+ logic paths in industrial applications.
Does this part have internal ESD protection, and what levels are certified?
Yes. It meets JESD22-A114A (2000V HBM), JESD22-C101C (>1000V CDM), and JESD22-A115-A (200V MM). These ratings are verified per JEDEC test methods and documented in the DS35351 datasheet - enabling safe handling in standard manufacturing without additional protection circuitry.
Is the SO-14 package RoHS-compliant and lead-free?
Yes. 74AHCT08S14-13 is fully RoHS 2 compliant (2011/65/EU), with no purposely added lead, and classified as "Green" - containing <900ppm bromine, <900ppm chlorine, and <1000ppm antimony compounds. This is confirmed in Diodes' material declarations and AP02002 package documentation.
What is the maximum recommended capacitive load for stable operation?
The datasheet specifies timing parameters up to 50pF (tPD ≤ 11.0ns max), and the output driver is characterized for CL ≤ 50pF. For reliable signal integrity beyond 50pF, add series termination or reduce trace length - as excessive capacitance increases rise/fall times and may cause logic glitches in high-speed paths.
74AHCT08S14-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHCT
- 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):
- 20 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 10ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74AHCT08S14-13 FAQ
1.How can I place an order for 74AHCT08S14-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT08S14-13 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 74AHCT08S14-13 reliable?
The price and inventory of 74AHCT08S14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT08S14-13 is usually 5 days.
3.What payment methods are accepted for 74AHCT08S14-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT08S14-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT08S14-13?
74AHCT08S14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT08S14-13 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 74AHCT08S14-13?
For technical support, including 74AHCT08S14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT08S14-13 requirements.
6.How does Aetrix verify that 74AHCT08S14-13 is sourced from the original manufacturer or authorized distributors?
All 74AHCT08S14-13 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 74AHCT08S14-13 meets industry standards.
7.What is the process for return or replacement of 74AHCT08S14-13?
All 74AHCT08S14-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT08S14-13, 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 74AHCT08S14-13 part is unused and in its original packaging.
Return procedure for 74AHCT08S14-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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