Texas Instruments SN74AUP1T57DSFR

Overview

SN74AUP1T57DSFR from Texas Instruments is a single-supply voltage-level translator with configurable logic functions, supporting 1.8 V ↔ 2.5 V and 1.8 V ↔ 3.3 V bidirectional translation, featuring Schmitt-trigger inputs (ΔVT = 210 mV), I_off protection (0.5 µA), and 4 mA output drive. It enables flexible gate configuration (AND, OR, NAND, NOR, XNOR, inverter, buffer) in space-constrained portable systems.

For engineers reviewing the SN74AUP1T57DSFR datasheet, SN74AUP1T57DSFR pinout, SN74AUP1T57DSFR application, or SN74AUP1T57DSFR equivalent, key selection criteria include its ultra-low static/dynamic power (ICC < 0.9 µA, Cpd = 5 pF @ 3.3 V), 6-pin X2SON (DSF) package footprint (1.05 mm × 1.05 mm), and support for partial-power-down mode in battery-backed interfaces.

Technical Context

The SN74AUP1T57DSFR implements a single-input configurable logic cell using three user-defined control pins (A, B, C) tied to VCC or GND to select among nine standard logic functions. Its Schmitt-trigger input stage provides hysteresis (ΔVT = 0.25 V min at 3 V) to reject noise on slow-rising signals in mixed-signal environments.

It operates across a wide VCC range (2.3 V to 3.6 V), enabling robust operation during battery voltage sag. The I_off feature guarantees ≤0.5 µA leakage when VCC = 0 V, allowing safe signal routing between powered and unpowered domains without back-drive current.

Key Specifications

Pinout & Package

SN74AUP1T57DSFR uses the DSF package: 6-pin X2SON (1.05 mm × 1.05 mm, 0.4 mm max height), lead-free, moisture sensitivity level 1, with exposed thermal pad. Pin 1 is marked by a corner chamfer per JEDEC MO-287 X2AAF.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AUP1T58DSFR and SN74LVC1T45DBVR, the SN74AUP1T57DSFR uniquely combines configurability, ultra-low power, and Schmitt-trigger noise immunity in a 1.05 mm × 1.05 mm package - making it optimal for compact, battery-sensitive designs requiring multiple logic topologies.

Availability

SN74AUP1T57DSFR is available at Aetrix Electronics and suitable for portable medical devices, industrial IoT sensors, battery-backed real-time clocks, and wearable electronics requiring stable component supply with guaranteed long-term manufacturability.

Supply support for SN74AUP1T57DSFR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The SN74AUP1T57DSFR belongs to TI's AUP (Advanced Ultra-Low Power) logic family, engineered specifically for battery-operated and energy-harvesting applications where nanowatt static power and sub-nanosecond timing precision are critical.

FAQ

What logic functions can be configured using SN74AUP1T57DSFR?

The SN74AUP1T57DSFR supports nine distinct logic configurations via its A, B, and C inputs: 2-input AND, NOR (both inputs inverted), NAND (one input inverted), OR (one input inverted), AND (both inputs inverted), NOR, XNOR, inverter, and noninverted buffer. Each function is selected by tying A/B/C to VCC or GND per the Function Selection Table in the SCES611G datasheet. No external components are required to set the function - configuration is purely static.

Does SN74AUP1T57DSFR support bidirectional voltage translation?

Yes, SN74AUP1T57DSFR supports bidirectional level translation between 1.8-V, 2.5-V, and 3.3-V domains - for example, translating 1.8-V inputs to 3.3-V outputs and vice versa - without direction control pins. Its architecture inherently handles signal flow in either direction, provided the VCC supply matches the higher-voltage domain and input levels fall within the specified VI range (0 V to 3.6 V).

What is the purpose of the I_off feature in SN74AUP1T57DSFR?

The I_off feature in SN74AUP1T57DSFR limits leakage current to ≤0.5 µA when VCC = 0 V, enabling safe interconnection between powered and unpowered subsystems. This prevents back-driving, unintended power-up, or latch-up in hot-swap modules, battery-backed peripherals, or partial-power-down states - a critical capability for portable and modular electronics design.

Can SN74AUP1T57DSFR operate with a 2.3-V supply?

Yes, SN74AUP1T57DSFR is fully specified down to VCC = 2.3 V per the Recommended Operating Conditions table. At this voltage, it maintains valid logic thresholds (VT+ = 0.6 V min, VT− = 0.35 V max), 4 mA output drive, and functional Schmitt-trigger hysteresis - ensuring compatibility with deeply discharged lithium batteries and low-voltage microcontrollers.

Is the DSF package of SN74AUP1T57DSFR RoHS-compliant and lead-free?

Yes, SN74AUP1T57DSFR uses a lead-free DSF (X2SON) package with NIPDAU surface finish, certified RoHS-compliant per TI's Package Option Addendum. It carries MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH) and is qualified for reflow up to 260°C peak temperature, meeting IPC/JEDEC standards for high-reliability assembly.