Texas Instruments SN74AUP1T98DBVT

Overview

SN74AUP1T98DBVT from Texas Instruments is a single-supply voltage-level translator with configurable logic functions, operating from 2.3 V to 3.6 V VCC, supporting 1.8 V/2.5 V/3.3 V bidirectional translation, delivering ±4 mA output drive, and featuring Schmitt-trigger inputs (ΔVT = 0.25 V min) for noise immunity in mixed-signal interfaces.

For engineers reviewing the SN74AUP1T98DBVT datasheet, SN74AUP1T98DBVT pinout, SN74AUP1T98DBVT application, or SN74AUP1T98DBVT equivalent, key selection criteria include its 6-pin SOT-23 package, Ioff support for partial-power-down (0.5 µA), ultra-low static power (0.9 µA max), configurable gate function via A/B/C input biasing, and compatibility with battery-backed systems requiring robust signal integrity across voltage domains.

Technical Context

The SN74AUP1T98DBVT implements a single-output, three-input configurable logic block using AUP ultra-low-power CMOS technology. Its Schmitt-trigger inputs provide hysteresis (VT+ = 1.19 V, VT− = 0.5 V at VCC = 3.3 V), enabling reliable switching on slow or noisy signals. The device accepts input voltages up to 3.6 V independent of VCC, allowing flexible interfacing between disparate logic families.

Logic configuration is achieved by hardwiring inputs A, B, and C to VCC or GND per the Function Selection Table - enabling nine distinct functions including inverter, buffer, NAND, NOR, and 2-to-1 data selector. Output drive strength is optimized at 4 mA to minimize overshoot/undershoot while maintaining low dynamic power (Cpd = 5 pF at 3.3 V).

Key Specifications

Pinout & Package

SOT-23-6 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body, surface-mount, lead-free (NiPdAu), moisture sensitivity level 1, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage-level translation applications.

Compared with SN74AUP1T97DBVT and TXS0102DCUR, the SN74AUP1T98DBVT uniquely combines field-programmable logic configuration, Schmitt-trigger noise immunity, and sub-1-µA static power - making it optimal for space-constrained, battery-sensitive, and EMI-prone applications demanding functional flexibility.

Availability

SN74AUP1T98DBVT is available at Aetrix Electronics and suitable for industrial sensor interface, portable medical device, and automotive body control module applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for SN74AUP1T98DBVT 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 connectivity technologies, with over 90 years of innovation in power management, signal chain, and logic solutions.

The SN74AUP1T98DBVT belongs to TI's AUP ultra-low-power logic family, designed specifically for battery-operated and mixed-voltage systems where minimizing static/dynamic power while maintaining robust signal integrity is critical.

FAQ

What logic functions can the SN74AUP1T98DBVT configure, and how are they selected?

The SN74AUP1T98DBVT supports nine logic functions including inverter, non-inverted buffer, 2-input NAND/NOR, and 2-to-1 data selector. Functions are selected by connecting inputs A, B, and C to VCC or GND per the Function Selection Table in the datasheet - no external programming or configuration registers are required. Each combination defines a unique truth table mapped directly to the Y output.

Does the SN74AUP1T98DBVT require external pull-up or pull-down resistors for proper operation?

No, the SN74AUP1T98DBVT does not require external pull-up or pull-down resistors. All unused inputs must be actively tied to VCC or GND per TI's recommended operating conditions to prevent floating states and ensure predictable logic behavior. Internal circuitry is designed for direct biasing without external components.

Can the SN74AUP1T98DBVT translate signals between 3.3 V and 1.8 V bidirectionally?

Yes, the SN74AUP1T98DBVT supports bidirectional voltage translation between 3.3 V and 1.8 V systems. When VCC = 3.3 V, it accepts 1.8-V LVCMOS inputs (VIH min = 1.19 V, VIL max = 0.5 V) and outputs full 3.3-V logic swings. Its input voltage rating extends to 3.6 V regardless of VCC, enabling safe interfacing without direction control pins.

What is the maximum capacitive load the SN74AUP1T98DBVT can drive while maintaining specified timing?

The SN74AUP1T98DBVT is characterized up to 30 pF load capacitance. At VCC = 3.3 V and VI = 1.8 V, tpd ranges from 1.6 ns (min, CL = 5 pF) to 4.4 ns (max, CL = 30 pF). For reliable timing compliance, keep total load (including trace and probe capacitance) ≤30 pF and use proper PCB layout practices such as short traces and ground return paths.

How does the Ioff feature of the SN74AUP1T98DBVT protect system-level circuits during power-down?

The Ioff feature limits input/output leakage to 0.5 µA max when VCC = 0 V, preventing current backflow from live signal lines into a powered-down domain. This protects downstream circuitry from unintended biasing or latch-up, and enables hot-plug capability in modular systems - a critical requirement in portable and automotive applications where subsystems power up/down independently.