Texas Instruments SN74LVC1G97DRLRG4

Overview

SN74LVC1G97DRLRG4 from Texas Instruments is a configurable single-gate logic IC supporting nine logic functions (AND, OR, NAND, NOR, inverter, noninverter, and 2:1 MUX) via three input pins (In0–In2), with Schmitt-trigger inputs, 1.65–5.5 V supply range, ±24-mA output drive at 3.3 V, and Ioff support for live insertion in battery-powered field transmitters.

For engineers reviewing the SN74LVC1G97DRLRG4 datasheet, SN74LVC1G97DRLRG4 pinout, SN74LVC1G97DRLRG4 application, or SN74LVC1G97DRLRG4 equivalent, this device offers flexible logic configuration in ultra-small SOT-5X3 packaging with verified hysteresis (ΔVT = 0.3–1.11 V), max 6.3 ns propagation delay at 3.3 V, and overvoltage-tolerant 5.5-V inputs enabling level translation in embedded PC and HVAC sensor interface designs.

Technical Context

This device implements a 3-input configurable logic gate using CMOS technology with Schmitt-trigger input thresholds (VT+ and VT−) that vary with VCC - e.g., VT+ = 1.50–2.74 V and VT− = 0.84–2.29 V across 3–5.5 V supply - enabling noise-immune signal conditioning in noisy industrial environments. Its Ioff feature disables outputs during partial power-down, preventing back-drive current when VCC = 0 V while inputs remain at up to 5.5 V.

The logic function is selected by hardwiring In0–In2 to VCC or GND per Table 1 and Table 2 in the datasheet, yielding deterministic Boolean behavior without external programming. All unused inputs must be tied to VCC or GND to avoid floating states, and output load must stay within ±50 mA continuous rating.

Key Specifications

Pinout & Package

SOT-5X3 (DRL) package: 1.60 mm × 1.20 mm, 6-pin surface-mount, lead-free, RoHS-compliant, moisture sensitivity level (MSL) 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G98DRLRG4 and 74LVC1G57GV,125, the SN74LVC1G97DRLRG4 delivers optimal balance of Ioff protection, 24-mA drive, and ultra-compact DRL packaging - making it the most robust choice for industrial sensor interfaces and embedded PC power sequencing where reliability under partial power-down is critical.

Availability

SN74LVC1G97DRLRG4 is available at Aetrix Electronics and suitable for field transmitter interfaces, embedded PC power sequencing, HVAC sensor hubs, and wireless peripheral control requiring stable component supply across automotive-grade temperature ranges (–40°C to +125°C).

Supply support for SN74LVC1G97DRLRG4 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-grade components.

The SN74LVC1G97DRLRG4 belongs to TI's LVC logic family, designed specifically for low-voltage, high-noise-immunity applications in space-constrained industrial and consumer electronics - emphasizing configurability, Ioff safety, and ultra-small packaging.

FAQ

What logic functions does the SN74LVC1G97DRLRG4 support?

The SN74LVC1G97DRLRG4 supports nine configurable logic functions: 2-to-1 multiplexer, 2-input AND, 2-input OR with one inverted input, 2-input NAND with one inverted input, 2-input AND with one inverted input, 2-input NOR with one inverted input, 2-input OR, inverter, and noninverted buffer. Selection is achieved by hardwiring its three inputs (In0–In2) to VCC or GND per the function table in the datasheet. The SN74LVC1G97DRLRG4 does not require external programming or configuration registers.

Does the SN74LVC1G97DRLRG4 support partial power-down operation?

Yes, the SN74LVC1G97DRLRG4 fully supports partial power-down via its Ioff feature: when VCC = 0 V, the outputs are actively disabled to prevent damaging back-current flow from powered inputs (up to 5.5 V). This is validated per JESD78 Class II latch-up testing and is critical for live-insertion applications like modular server PSUs and wireless data access cards. The SN74LVC1G97DRLRG4 maintains this protection across its full –40°C to +125°C operating range.

What is the maximum propagation delay for the SN74LVC1G97DRLRG4?

The maximum propagation delay (tpd) for the SN74LVC1G97DRLRG4 is 6.3 ns at VCC = 3.3 V and TA = –40°C to +85°C, and 7.3 ns at TA = –40°C to +125°C. At VCC = 5 V, tpd is 5.1 ns (–40°C to +85°C) and 6.1 ns (–40°C to +125°C). These values are measured from any input (In0–In2) to output Y under specified load conditions (CL = 50 pF), and are guaranteed across temperature and voltage ranges per the datasheet's Switching Characteristics tables.

Can the SN74LVC1G97DRLRG4 interface between 5 V and 3.3 V logic domains?

Yes, the SN74LVC1G97DRLRG4 supports bidirectional level translation: its inputs tolerate up to 5.5 V regardless of VCC setting, allowing direct connection to 5 V microcontrollers while operating at VCC = 3.3 V; its output swings rail-to-rail (VOH ≈ VCC – 0.1 V, VOL ≈ 0.1 V), providing clean 3.3 V logic levels to downstream devices. This capability is explicitly verified in the datasheet's Recommended Operating Conditions and Electrical Characteristics sections for the SN74LVC1G97DRLRG4.

What package type is used for the SN74LVC1G97DRLRG4?

The SN74LVC1G97DRLRG4 uses the SOT-5X3 (DRL) package: a 6-pin, ultra-compact surface-mount outline measuring 1.60 mm × 1.20 mm with 0.5-mm pitch. It is RoHS-compliant, lead-free, and rated MSL-1 (unlimited floor life at ≤30°C/60% RH). This package is distinct from SOT-23 and SC70 variants of the same family and is optimized for high-density layouts in TVs, e-books, and wireless peripherals.