Texas Instruments SN74AHC1G08DBVRE4

Overview

SN74AHC1G08DBVRE4 from Texas Instruments is a single 2-input positive-AND gate in SOT-23 (DBV) package, operating from 2 V to 5.5 V supply, delivering 7 ns max propagation delay at 5 V, ±8-mA output drive, and 10-μA max ICC. It performs Y = A ● B logic in digital control paths for power sequencing and signal gating in embedded PCs and biometric sensors.

For engineers reviewing the SN74AHC1G08DBVRE4 datasheet, SN74AHC1G08DBVRE4 pinout, SN74AHC1G08DBVRE4 application, or SN74AHC1G08DBVRE4 equivalent, key selection criteria include its Schmitt-trigger input tolerance for slow-rising signals, latch-up immunity (>250 mA), and compatibility with 3.3 V/5 V mixed-voltage systems requiring low-power logic-level translation.

Technical Context

The SN74AHC1G08DBVRE4 implements standard positive-logic AND functionality using advanced CMOS AHC technology, supporting rail-to-rail input voltage operation up to 5.5 V while maintaining TTL-compatible thresholds. Its Schmitt-trigger inputs provide hysteresis (typically 0.3 V at 3.3 V), enabling robust noise immunity on slow or noisy control lines.

It operates across –55°C to +125°C ambient temperature, features ESD ratings of ±2000 V HBM and ±1000 V CDM, and exhibits balanced rise/fall times due to matched P/N transistor drive strength - critical for timing-critical enable/gating functions in server motherboards and HVAC controllers.

Key Specifications

Pinout & Package

SOT-23 (DBV) 5-pin plastic package, 2.9 mm × 2.8 mm footprint, 1.45 mm nominal height, JEDEC MO-178AA compliant. RoHS-compliant NIPDAU lead finish, MSL Level-1, 260°C peak reflow.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input AND gate applications.

Compared with SN74AHC1G08DBVRE4, SN74LVC1G08DBVR trades Schmitt noise immunity for faster speed in narrow-voltage systems, while MC74VHC1G08DTT1G provides identical performance with second-source assurance - making it the preferred alternative for long-lifecycle industrial deployments.

Availability

SN74AHC1G08DBVRE4 is available at Aetrix Electronics and suitable for barcode scanners, embedded PCs, field transmitter sensors, and HVAC controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74AHC1G08DBVRE4 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 solutions, with decades of expertise in high-reliability logic families.

The SN74AHC1G08DBVRE4 belongs to TI's AHC logic series, designed for low-power, high-noise-immunity digital interfacing in industrial, computing, and sensor-system applications demanding wide supply range and robust operation.

FAQ

What is the maximum operating supply voltage for SN74AHC1G08DBVRE4?

The SN74AHC1G08DBVRE4 supports a maximum supply voltage of 5.5 V, with absolute maximum rating up to 7 V. Operation beyond 5.5 V violates recommended conditions and risks parametric degradation. All inputs tolerate up to 5.5 V regardless of VCC, enabling safe interfacing with higher-voltage peripherals without external clamping.

Does SN74AHC1G08DBVRE4 have Schmitt-trigger inputs, and why does it matter?

Yes, SN74AHC1G08DBVRE4 features Schmitt-trigger inputs with typical hysteresis of 0.3 V at 3.3 V. This design prevents oscillation on slow-rising signals-such as those from thermistors, mechanical switches, or long PCB traces-and improves noise immunity in electrically noisy industrial environments where SN74AHC1G08DBVRE4 is commonly deployed.

Can SN74AHC1G08DBVRE4 drive an LED directly?

Yes, SN74AHC1G08DBVRE4 can drive a low-current LED directly when configured in active-low mode (e.g., sinking current through Pin 4/Y to GND), leveraging its 8-mA sink capability at 5 V. For sustained operation, limit current to ≤6 mA using a series resistor to maintain output voltage compliance and avoid exceeding total package power limits.

What is the thermal resistance (RθJA) of SN74AHC1G08DBVRE4 in its DBV package?

The SN74AHC1G08DBVRE4 in SOT-23 (DBV) package has a junction-to-ambient thermal resistance (RθJA) of 278°C/W under standard JEDEC test conditions. This value assumes a 1-inch² copper pad with two vias; actual board-level RθJA will improve with enhanced copper area and thermal vias, critical for high-duty-cycle enable applications.

Is SN74AHC1G08DBVRE4 suitable for automotive applications?

SN74AHC1G08DBVRE4 is not AEC-Q100 qualified. For automotive use, TI recommends the pin-compatible SN74AHC1G08-Q1, which undergoes extended temperature stress, failure analysis, and zero-defect screening. Using SN74AHC1G08DBVRE4 in automotive systems requires full qualification per customer-specific requirements and carries no TI automotive warranty coverage.