Texas Instruments SN74LVC1G98DCKTG4

Overview

SN74LVC1G98DCKTG4 from Texas Instruments is a configurable multiple-function logic gate in SC70-6 (DCK) package, operating from 1.65 V to 5.5 V, supporting 5-V tolerant inputs and delivering ±24-mA output drive at 3.3 V. It implements eight logic functions-including MUX, AND, OR, NAND, NOR, inverter, and buffer-via three input pins (In0–In2), with Schmitt-trigger inputs enabling noise immunity in industrial sensor interfaces.

For engineers reviewing the SN74LVC1G98DCKTG4 datasheet, SN74LVC1G98DCKTG4 pinout, SN74LVC1G98DCKTG4 application, or SN74LVC1G98DCKTG4 equivalent, key selection criteria include its configurable logic mapping, Ioff support for live insertion, sub-6.3-ns propagation delay at 3.3 V, ±24-mA drive strength, and 1.65–5.5-V supply flexibility across mixed-voltage systems.

Technical Context

The SN74LVC1G98DCKTG4 uses a 3-bit input configuration (In0, In1, In2) to select one of eight logic functions via truth table mapping, with no external programming interface-function is determined solely by static input voltage levels. Its Schmitt-trigger inputs provide hysteresis (ΔVT = 0.53–1.11 V depending on VCC), enabling robust operation in noisy environments such as motor control feedback paths or industrial I/O conditioning.

It features Ioff circuitry that disables outputs during partial power-down, preventing back-drive current when VCC = 0 V, and supports down-translation: inputs accept up to 5.5 V regardless of VCC level, allowing interfacing with higher-voltage logic domains while powered from lower supplies like 1.8 V or 2.5 V.

Key Specifications

Pinout & Package

SN74LVC1G98DCKTG4 is packaged in SC70-6 (DCK), a 2.0 mm × 1.25 mm surface-mount package with 0.65-mm lead pitch and 1.1-mm maximum height. Pin 1 is marked by a dot or beveled edge; device orientation follows JEDEC MO-203AB standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar configurable logic gate applications.

Compared with SN74LVC1G97DCKR and 74LVC1G57GW,125, the SN74LVC1G98DCKTG4 uniquely combines configurable logic, Schmitt-trigger inputs, and a dedicated 6-pin SC70 package-enabling flexible, noise-resilient glue logic in compact industrial and IoT designs where function adaptability and signal integrity are jointly critical.

Availability

SN74LVC1G98DCKTG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power IoT edge nodes, and motor control feedback circuits requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for SN74LVC1G98DCKTG4 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 industrial and automotive IC design.

The SN74LVC1G98 series belongs to TI's LVC logic family, engineered for low-voltage operation, mixed-signal compatibility, and configurability in space-constrained embedded systems where traditional fixed-function gates lack flexibility.

FAQ

What logic functions does the SN74LVC1G98DCKTG4 support?

The SN74LVC1G98DCKTG4 supports eight logic functions determined by the static voltage states of its three inputs (In0–In2): 2-to-1 data selector with inverted output, 2-input NAND, 2-input NOR with one inverted input, 2-input AND with one inverted input, 2-input NAND with one inverted input, 2-input OR with one inverted input, 2-input NOR, noninverted buffer, and inverter. No external configuration is required-the function is set at power-on by tying inputs to VCC or GND.

Does the SN74LVC1G98DCKTG4 support 5-V input signals when powered from 1.8 V?

Yes, the SN74LVC1G98DCKTG4 accepts input voltages up to 5.5 V regardless of VCC level, enabling direct interfacing with 5-V sensors or microcontrollers while operating from a 1.8-V supply. This eliminates the need for external level translators in mixed-voltage systems, simplifying design and reducing component count.

What is the purpose of the Schmitt-trigger inputs on the SN74LVC1G98DCKTG4?

The Schmitt-trigger inputs on the SN74LVC1G98DCKTG4 provide hysteresis (e.g., ΔVT = 0.53 V at 3 V), giving distinct VT+ and VT− thresholds to reject noise on slow or noisy signals. This ensures clean, bounce-free switching in applications like mechanical switch debouncing, encoder signal conditioning, or industrial I/O where EMI or ground bounce would otherwise cause metastability or false triggering.

Can the SN74LVC1G98DCKTG4 be used in hot-swap or partial-power-down systems?

Yes, the SN74LVC1G98DCKTG4 includes Ioff circuitry that disables outputs when VCC = 0 V, limiting off-state current to ±10 µA. This prevents damaging back-current flow through the device during live insertion, power sequencing, or partial shutdown-making it suitable for modular backplanes, hot-pluggable I/O cards, and systems with staggered power domains.

What package type and dimensions does the SN74LVC1G98DCKTG4 use?

The SN74LVC1G98DCKTG4 uses the SC70-6 (DCK) package: 2.0 mm × 1.25 mm body size, 0.65-mm lead pitch, and 1.1-mm maximum height. It is supplied in tape-and-reel format (250 units per reel) with Q3 pin-1 quadrant orientation, compatible with standard SMT assembly processes and IPC-7351 land patterns.