Texas Instruments SN74LVC1G99YZPR

Overview

SN74LVC1G99YZPR from Texas Instruments is an ultra-configurable 4-input, 1-output logic gate with 3-state output, operating from 1.65 V to 5.5 V, supporting voltage translation and delivering ≤6.7 ns propagation delay at 3.3 V. It implements 9 distinct logic functions-including MUX, AND, OR, NAND, NOR, XOR, XNOR, buffer, and inverter-via input configuration, and features ±24-mA drive strength at 3.3 V for interfacing with mixed-voltage systems.

For engineers reviewing the SN74LVC1G99YZPR datasheet, SN74LVC1G99YZPR pinout, SN74LVC1G99YZPR application, or SN74LVC1G99YZPR equivalent, key selection considerations include its NanoFree™ DSBGA-8 (YZP) package, Ioff-enabled live insertion support, Schmitt-trigger hysteresis for noise immunity, and configurable function mapping across four address inputs (A–D) and enable control (OE).

Technical Context

The SN74LVC1G99YZPR implements a programmable logic array architecture where four inputs (A–D) select one of 16 truth-table patterns, determining output Y behavior while OE controls 3-state output enable/disable. Its internal logic supports both inverting and non-inverting configurations, with Schmitt-trigger inputs providing VT+ = 2.16 V and VT– = 1.41 V at 4.5 V supply, yielding 0.75 V hysteresis.

It integrates Ioff circuitry to disable outputs during partial power-down, preventing back-drive current, and supports down-translation-inputs tolerate up to 5.5 V regardless of VCC. The device operates across –40°C to +125°C and meets JESD 78 Class II latch-up performance (>100 mA).

Key Specifications

Pinout & Package

SN74LVC1G99YZPR uses the Texas Instruments NanoFree™ DSBGA-8 (YZP) package: 1.02 mm × 2.02 mm, 0.4-mm pitch, bottom-side ball grid array with pin 1 in quadrant Q1 per tape-and-reel specification. This ultra-compact, leadless package eliminates bond wires and plastic molding, using the silicon die as the mechanical structure.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G57YZPR and SN74LVC1G97YZPR, the SN74LVC1G99YZPR offers broader configurability (9 functions vs. 1 or 6), integrated Schmitt inputs for noise-prone environments, and full voltage translation-making it optimal for mixed-signal, space-limited, and industrial-grade applications requiring field-reprogrammable logic behavior.

Availability

SN74LVC1G99YZPR is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device power sequencing, automotive body control modules, and test equipment signal routing requiring stable component supply, long-term lifecycle support, and RoHS-compliant DSBGA packaging.

Supply support for SN74LVC1G99YZPR 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 for industrial, automotive, and consumer markets.

The SN74LVC1G99YZPR belongs to TI's LVC low-voltage logic family, designed for high-speed, low-power, mixed-voltage system interfacing with emphasis on configurability, robustness, and miniaturization in space-constrained applications.

FAQ

What logic functions does the SN74LVC1G99YZPR support?

The SN74LVC1G99YZPR supports nine distinct logic functions: 3-state buffer, 3-state inverter, 2-to-1 data selector MUX (standard and inverted), 2-input AND/NAND/OR/NOR (with and without input inversion), and 2-input XOR/XNOR. Function selection is determined by the 4-bit input combination (A–D) when OE is low, as defined in the device's function selection table.

How does the SN74LVC1G99YZPR handle power-up sequencing?

To ensure high-impedance output during power-up, OE must be tied to VCC through a pullup resistor; TI specifies minimum resistance based on driver sink capability. The SN74LVC1G99YZPR's Ioff feature further guarantees output isolation if VCC drops to zero while other supplies remain active, preventing back-drive damage in multi-rail systems.

Can the SN74LVC1G99YZPR interface between 5-V and 1.8-V logic domains?

Yes. The SN74LVC1G99YZPR accepts input voltages up to 5.5 V regardless of VCC level, enabling direct connection to 5-V sensors or legacy peripherals while operating from a 1.8-V supply. Its output swings rail-to-rail (VOL/VOH specified down to 1.65 V VCC), supporting bidirectional voltage translation without external components.

What is the significance of the YZP package in the SN74LVC1G99YZPR?

The YZP designation identifies the NanoFree™ DSBGA-8 package: a 1.02 mm × 2.02 mm, 0.4-mm pitch, bottom-terminal chip-scale package. Unlike traditional封装, it uses the silicon die itself as the package structure-eliminating leads, mold compound, and wire bonds-to achieve minimal footprint, thermal resistance (θJA = 102°C/W), and parasitic inductance for high-frequency stability.

Does the SN74LVC1G99YZPR include Schmitt-trigger inputs, and why does it matter?

Yes. The SN74LVC1G99YZPR incorporates Schmitt-trigger inputs with VT+ = 2.16 V and VT– = 1.41 V at 4.5 V VCC, yielding 0.75 V hysteresis. This design prevents chatter on slow or noisy signals-such as mechanical switch closures or analog comparator outputs-by enforcing distinct rising and falling thresholds, eliminating false triggering in industrial and automotive environments.