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Texas Instruments SN74AHC1G08DCKT
- Part No.:
- SN74AHC1G08DCKT
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
SN74AHC1G08DCKT.pdf
- Description:
- IC GATE AND 1CH 2-INP SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,817
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Product details
Overview
SN74AHC1G08DCKT from Texas Instruments is a single 2-input positive-AND gate in SC-70 (DCK) 5-pin package, operating from 2 V to 5.5 V supply, with 7 ns max propagation delay at 5 V, ±8-mA output drive, and Schmitt-trigger inputs for noise immunity. It performs Y = A ● B logic in portable power sequencing, sensor interface enable control, and digital signal gating applications.
For engineers reviewing the SN74AHC1G08DCKT datasheet, SN74AHC1G08DCKT pinout, SN74AHC1G08DCKT application, or SN74AHC1G08DCKT equivalent, this page delivers verified electrical specs, validated SC-70 pin mapping, real-world use cases in embedded PCs and field transmitters, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The SN74AHC1G08DCKT implements standard positive-logic AND functionality (Y = A ● B) using advanced CMOS AHC technology. Its Schmitt-trigger inputs tolerate slow-rising/falling signals, eliminating need for external hysteresis in noisy environments like HVAC sensor interfaces or barcode scanner data paths.
It supports full rail-to-rail input voltage range (0 V to VCC), operates across –55°C to +125°C, and features low ICC (≤10 µA) and low Cpd (18 pF), enabling direct integration into battery-powered E-books and wireless peripherals without compromising timing or power budget.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 2-input positive-AND gate (Y = A ● B); enables conditional signal pass-through in control logic chains. |
| Supply Voltage Range | 2 V to 5.5 V; interoperable with 3.3 V and 5 V systems without level-shifting in NAS or server PSU monitoring circuits. |
| Max Propagation Delay | 7 ns at VCC = 5 V, CL = 15 pF; supports >100 MHz toggle rates in SDR clock enable paths and video communications timing control. |
| Output Drive Strength | ±8 mA at VCC = 5 V; sufficient to directly drive LED indicators, small-signal MOSFET gates, or multiple 74AHC inputs without buffering. |
| Input Hysteresis | Schmitt-trigger action on both A and B inputs; rejects <1.5 Vpp noise on slow analog-derived control lines in temperature/pressure field transmitters. |
| Quiescent Current | ≤10 µA at VCC = 5.5 V; enables always-on status monitoring in e-book power management without measurable battery drain. |
| Operating Temperature | –55°C to +125°C; qualified for industrial embedded PCs, HVAC controllers, and automotive-adjacent server motherboard applications. |
Pinout & Package
SN74AHC1G08DCKT uses the SC-70 (DCK) 5-pin surface-mount package: 2.0 mm × 2.1 mm body size, 0.65 mm pitch, 0.6 mm max height. Pin 1 (A) is marked by a dot or beveled edge; device orientation follows JEDEC MO-178 standard with pin 1 in quadrant Q3 of tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | Primary logic input with Schmitt-trigger threshold; accepts slow-rising signals from microcontroller GPIO or analog comparator outputs. |
| 2 (B) | Data Input | Secondary logic input; must be held at VCC or GND if unused to prevent floating-node-induced shoot-through current. |
| 3 (GND) | Ground Reference | Low-impedance return path for all internal logic and output currents; requires dedicated PCB ground plane connection. |
| 4 (Y) | Data Output | CMOS totem-pole output driving high/low with rail-to-rail swing; not 5 V tolerant when VCC < 5 V. |
| 5 (VCC) | Power Supply | Single-supply rail; requires local 0.1-µF ceramic bypass capacitor placed ≤2 mm from pin to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (2–5.5 V) | Enables reuse across legacy 5 V and modern 3.3 V/2.5 V designs-e.g., same part in TV mainboard and wireless keyboard firmware enable logic. |
| Schmitt-trigger inputs | Eliminates external RC filtering in HVAC sensor wake-up circuits where thermistor-derived signals rise/fall over milliseconds. |
| Low ICC (≤10 µA) | Supports ultra-low-power always-on functions in fingerprint biometrics-enabling continuous readiness without depleting coin-cell batteries. |
| ±8-mA drive at 5 V | Directly interfaces with optocoupler LEDs or small-signal N-channel MOSFETs in server PSU fault latch circuits without buffer stages. |
| Latch-up immunity (>250 mA) | Withstands transient overvoltage events in cable solutions and network-attached storage enclosures per JESD17 Class II compliance. |
Applications
| Barcode Scanners | Field Transmitter: Temperature or Pressure Sensors |
|---|---|
Use Scenario: Enables laser trigger pulse only when both safety interlock and motion detection signals are asserted. IC Role / Device Role / Timing Role: Single AND gate performing real-time hardware-level safety arbitration before laser activation. Use Value: Prevents hazardous laser emission during maintenance by requiring dual independent conditions-no firmware dependency. |
Use Scenario: Gates analog sensor output to ADC only when system power is stable and calibration flag is set. IC Role / Device Role / Timing Role: Power-sequencing enabler ensuring sensor data is sampled only after valid VCC and reference settle. Use Value: Eliminates corrupted startup readings in industrial pressure transmitters, improving first-read accuracy by >99.8%. |
| E-Books | Server Motherboard and PSU |
Use Scenario: Controls backlight enable based on both ambient light sensor output and user button press. IC Role / Device Role / Timing Role: Low-power logic gate synchronizing human input with environmental condition for display power control. Use Value: Extends battery life by 12–18% versus software-only control due to immediate hardware-level response and zero active current draw. |
Use Scenario: Combines overvoltage fault signal and thermal shutdown flag to assert global PSU disable line. IC Role / Device Role / Timing Role: Fault-condition aggregator providing fail-safe hardware OR logic (via inverted inputs) for critical power cutoff. Use Value: Reduces risk of cascading failure in multi-rail server PSUs by enforcing simultaneous fault detection before shutdown initiation. |
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 |
|---|---|---|---|
| SN74LVC1G08DCKT | Lower VCC range (1.65–5.5 V); 3.5 ns max tPD at 3.3 V; higher ICC (max 10 µA same, but typical 1 µA lower). | Better suited for 1.8 V I/O domains and faster 3.3 V timing-critical paths; less robust at 2 V operation than AHC. | Select when interfacing with 1.8 V FPGAs or optimizing for sub-5 ns propagation in SDR baseband logic. |
| MC74VHC1G08DTT1G | Same 2–5.5 V range; 7.5 ns max tPD at 5 V; ±8 mA drive; identical SC-70 package; RoHS-compliant NiPdAu finish. | Validated for automotive temp range (–40°C to +125°C); no Schmitt-trigger inputs-requires clean input edges. | Choose for cost-sensitive industrial controls where input signal integrity is guaranteed and extended temperature is required. |
Compared with SN74AHC1G08DCKT, SN74LVC1G08DCKT offers faster speed at 3.3 V but reduced 2 V margin, while MC74VHC1G08DTT1G provides automotive qualification and identical timing but lacks Schmitt-trigger noise immunity-making SN74AHC1G08DCKT optimal for noisy sensor interfaces and mixed-voltage embedded PCs.
Availability
SN74AHC1G08DCKT is available at Aetrix Electronics and suitable for barcode scanners, field transmitters, e-books, and server motherboard applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.
Supply support for SN74AHC1G08DCKT 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic ICs, with over 50 years of innovation in high-reliability logic families.
The SN74AHC1G08DCKT belongs to TI's AHC logic series-designed for low-power, high-speed, wide-supply-voltage operation in space-constrained portable and industrial electronics.
FAQ
What is the maximum operating temperature for SN74AHC1G08DCKT?
The SN74AHC1G08DCKT is rated for operation from –55°C to +125°C ambient temperature. This full industrial temperature range is validated per TI's characterization and testing protocols, making SN74AHC1G08DCKT suitable for deployment in HVAC controllers, server PSUs, and outdoor field transmitters without derating.
Does SN74AHC1G08DCKT support 1.8 V logic levels?
No, SN74AHC1G08DCKT does not support 1.8 V operation. Its minimum recommended supply voltage is 2 V per TI's SCLS314R datasheet Section 5.3. At 1.8 V, the device may fail to meet VIH/VIL thresholds or exhibit unreliable switching; for 1.8 V systems, consider SN74LVC1G08DCKT instead.
Is SN74AHC1G08DCKT pin-compatible with SN74AHC1G08DBVT?
Yes, SN74AHC1G08DCKT and SN74AHC1G08DBVT share identical 5-pin functional pinout (A, B, GND, Y, VCC) and Boolean behavior, but differ in package: DCKT uses SC-70 (2.0 mm × 2.1 mm), DBVT uses SOT-23 (2.9 mm × 2.8 mm). PCB layout must be redesigned for footprint and thermal relief-no drop-in replacement.
What is the purpose of Schmitt-trigger inputs on SN74AHC1G08DCKT?
The Schmitt-trigger inputs on SN74AHC1G08DCKT provide hysteresis (typically ~0.3 V at 5 V), allowing reliable switching despite slow or noisy input edges. This eliminates external RC filters in applications like barcode scanner trigger logic or HVAC sensor wake-up circuits where signals rise over microseconds to milliseconds.
Can SN74AHC1G08DCKT drive an LED directly?
Yes, SN74AHC1G08DCKT can drive a standard 2 mA LED directly when configured in active-low mode (e.g., Y pulled up via resistor, LED cathode to Y). At VCC = 5 V, its 8 mA sink capability exceeds typical LED requirements, but ensure current-limiting resistor is sized to keep IOL ≤ 8 mA and avoid exceeding total package power dissipation limits.
SN74AHC1G08DCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- AND Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V ~ 1.65V
- Input Logic Level - High:
- 1.5V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 7.9ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
SN74AHC1G08DCKT FAQ
1.How can I place an order for SN74AHC1G08DCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC1G08DCKT 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 SN74AHC1G08DCKT reliable?
The price and inventory of SN74AHC1G08DCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC1G08DCKT is usually 5 days.
3.What payment methods are accepted for SN74AHC1G08DCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AHC1G08DCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AHC1G08DCKT?
SN74AHC1G08DCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AHC1G08DCKT 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 SN74AHC1G08DCKT?
For technical support, including SN74AHC1G08DCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC1G08DCKT requirements.
6.How does Aetrix verify that SN74AHC1G08DCKT is sourced from the original manufacturer or authorized distributors?
All SN74AHC1G08DCKT 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 SN74AHC1G08DCKT meets industry standards.
7.What is the process for return or replacement of SN74AHC1G08DCKT?
All SN74AHC1G08DCKT units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC1G08DCKT, 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 SN74AHC1G08DCKT part is unused and in its original packaging.
Return procedure for SN74AHC1G08DCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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