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Diodes Incorporated 74AHCT1G08W5-7
- Part No.:
- 74AHCT1G08W5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHCT1G08W5-7.pdf
- Description:
- IC GATE AND 1CH 2-INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:192,323
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Product details
Overview
74AHCT1G08W5-7 from Diodes Incorporated is a single 2-input positive AND gate in SOT25 package, operating at 4.5V–5.5V supply, delivering ±8 mA output drive at 5.0V, with Schmitt-trigger inputs for noise immunity, and used in logic interfacing within PC peripherals and consumer audio/video systems.
For engineers reviewing the 74AHCT1G08W5-7 datasheet, 74AHCT1G08W5-7 pinout, 74AHCT1G08W5-7 application, or 74AHCT1G08W5-7 equivalent, key selection criteria include TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), propagation delay ≤8.0 ns (CL = 50 pF), CMOS power efficiency (ICC ≤ 40 µA), and ESD robustness (2 kV HBM).
Technical Context
This device implements standard positive-logic AND functionality (Y = A • B) using advanced CMOS process technology, with Schmitt-trigger inputs enabling reliable operation under slow-rising or noisy signal conditions. Its totem-pole output stage supports rail-to-rail switching and drives capacitive loads up to 50 pF.
Designed for 5 V TTL-level compatibility, it accepts VIH ≥ 2.0 V and rejects VIL ≤ 0.8 V across –40°C to +125°C ambient, while maintaining low ICC (≤10 µA typical) and Ci ≤ 10 pF - critical for high-density board layouts and low-power embedded control logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation across industrial-grade 5 V rails with ±10% tolerance. |
| Output Drive | ±8 mA at 5.0 V - sufficient to directly interface with multiple 74-series TTL inputs or drive small LEDs without external buffers. |
| Propagation Delay | ≤8.0 ns at CL = 50 pF - enables use in sub-100 MHz synchronous logic paths with timing margin. |
| Input Thresholds | VIH = 2.0 V, VIL = 0.8 V - guarantees interoperability with legacy 5 V TTL outputs and microcontroller GPIOs. |
| ESD Protection | 2 kV HBM, 1 kV CDM - meets IEC 61000-4-2 Level 3 requirements for board-level surge resilience. |
| Power Dissipation | Cpd = 14 pF - determines dynamic power consumption (P = Cpd × V² × f); enables <1 mW at 1 MHz, 5 V. |
Pinout & Package
SOT25 (5-pin SC-74A) package with exposed pad not present; compact 2.8 mm × 1.6 mm footprint, 1.1 mm height, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Data Input | First logic input; Schmitt-triggered for noise rejection on slow edges. |
| B | Data Input | Second logic input; electrically identical to Pin A, supports wired-AND expansion. |
| GND | Ground Reference | Return path for all internal currents; must be connected to system ground plane for noise control. |
| Y | Logic Output | Active-high AND result; totem-pole structure provides fast rise/fall times and sink/source capability. |
| VCC | Supply Voltage | Primary power rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables reliable logic decision under slow edge rates (>20 ns/V) and EMI-prone environments. |
| CMOS low power | ICC ≤ 40 µA over full temperature range - reduces thermal load in dense logic arrays. |
| TTL-compatible thresholds | VIH = 2.0 V / VIL = 0.8 V - eliminates need for level-shifting when interfacing with legacy 5 V systems. |
| Green molding compound | Halogen-free, Br/Sb-free encapsulation - satisfies IPC-1752A material declaration requirements. |
Applications
| PC Peripheral Interface | Consumer Audio Control |
|---|---|
Use Scenario: Enabling USB hub status LED based on both upstream power and enumeration handshake signals. IC Role / Device Role / Timing Role: Single-gate logic combiner performing real-time AND of two asynchronous control flags. Use Value: Eliminates need for discrete resistor-diode logic or larger multi-gate packages, saving 2.2 mm² PCB area. | Use Scenario: Controlling mute function in portable speaker by requiring both volume-up press and Bluetooth connection confirmation. IC Role / Device Role / Timing Role: Glue logic element synchronizing user input and RF subsystem readiness before audio path activation. Use Value: Provides deterministic, zero-latency enable condition without software polling or MCU GPIO overhead. |
| DVD Player Power Sequencing | Industrial Sensor Signal Conditioning |
Use Scenario: Gating main processor reset release until both voltage regulators stabilize and firmware checksum passes. IC Role / Device Role / Timing Role: Critical safety interlock gate ensuring power-on sequence integrity before system boot. Use Value: Prevents race conditions during cold start; operates reliably at –40°C with no timing drift. | Use Scenario: Validating dual redundant temperature sensor outputs before forwarding data to PLC controller. IC Role / Device Role / Timing Role: Fault-detection logic block asserting "valid" only when both sensors report consistent readings. Use Value: Adds hardware-level fault masking without FPGA or microcontroller intervention. |
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 |
|---|---|---|---|
| SN74LVC1G08DBVR | Wider VCC range (1.65–5.5 V); lower ICC (≤1 µA typ); no Schmitt inputs. | Preferred for battery-powered systems needing ultra-low static current; unsuitable for noisy or slow-edge environments. | Select when supply voltage varies below 4.5 V or when Schmitt triggering is unnecessary. |
| 74AHC1G08W5-7 | Same pinout/package; higher VCC max (5.5 V); identical Schmitt inputs; slightly slower tpd (max 9.5 ns @ 50 pF). | Compatible drop-in replacement where marginal timing margin exists; same thermal profile (θJA = 204°C/W). | Choose when AHCT speed margin is insufficient but footprint and layout must remain unchanged. |
Compared with SN74LVC1G08DBVR and 74AHC1G08W5-7, the 74AHCT1G08W5-7 uniquely balances TTL compatibility, Schmitt noise immunity, and industrial temperature support - making it optimal for legacy 5 V systems requiring robustness over wide ambient ranges.
Availability
74AHCT1G08W5-7 is available at Aetrix Electronics and suitable for PC peripheral interface, consumer audio control, DVD player power sequencing, and industrial sensor signal conditioning requiring stable component supply and long-term production continuity.
Supply support for 74AHCT1G08W5-7 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, headquartered in Plano, Texas, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The 74AHCT logic family targets 5 V TTL-compatible digital interfacing in cost-sensitive, space-constrained applications - emphasizing robustness, low power, and seamless integration with legacy microcontrollers and peripheral controllers.
FAQ
What is the maximum operating temperature for 74AHCT1G08W5-7?
The device is rated for continuous operation from –40°C to +125°C ambient temperature, with junction temperature reaching up to +150°C under worst-case power dissipation. Thermal resistance θJA is 204°C/W in SOT25, so derating is required above 85°C ambient if driving 8 mA continuously.
Can 74AHCT1G08W5-7 accept 3.3 V logic inputs?
No - its input thresholds are fixed for 5 V TTL compatibility: VIH = 2.0 V minimum, VIL = 0.8 V maximum. A 3.3 V signal may not reliably register as HIGH due to insufficient margin above VIH; level translation is required for mixed-voltage systems.
Is the SOT25 package lead-free and RoHS compliant?
Yes - the 74AHCT1G08W5-7 uses lead-free terminations and green (halogen-free, Br/Sb-free) molding compound, fully compliant with EU Directive 2002/95/EC (RoHS), including all applicable exemptions per Diodes Incorporated's published lead-free policy.
Does this device require external pull-up or pull-down resistors on unused inputs?
Yes - per datasheet Note 3, unused inputs must be tied to VCC or GND to prevent floating states that increase ICC and cause unpredictable output behavior. Leaving inputs unconnected risks oscillation, excessive current draw, and potential latch-up in noisy environments.
74AHCT1G08W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHCT
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- AND Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 1 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
74AHCT1G08W5-7 FAQ
1.How can I place an order for 74AHCT1G08W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G08W5-7 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 74AHCT1G08W5-7 reliable?
The price and inventory of 74AHCT1G08W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G08W5-7 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G08W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G08W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT1G08W5-7?
74AHCT1G08W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G08W5-7 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 74AHCT1G08W5-7?
For technical support, including 74AHCT1G08W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G08W5-7 requirements.
6.How does Aetrix verify that 74AHCT1G08W5-7 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G08W5-7 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 74AHCT1G08W5-7 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G08W5-7?
All 74AHCT1G08W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G08W5-7, 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 74AHCT1G08W5-7 part is unused and in its original packaging.
Return procedure for 74AHCT1G08W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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