Texas Instruments SN74AUP1G17DCKR

Overview

SN74AUP1G17DCKR from Texas Instruments is a single-channel Schmitt-trigger buffer IC designed for signal conditioning in ultra-low-power portable systems. It operates across 0.8 V to 3.6 V, delivers 5.1 ns max propagation delay at 3.3 V, draws ≤0.9 µA ICC, and supports Ioff partial-power-down mode - enabling robust noise immunity in battery-powered PC, tablet, and industrial control interfaces.

For engineers reviewing the SN74AUP1G17DCKR datasheet, SN74AUP1G17DCKR pinout, SN74AUP1G17DCKR application, or SN74AUP1G17DCKR equivalent, key selection criteria include its 1.5 pF input capacitance, 3.6-V I/O tolerance for mixed-voltage interfacing, Schmitt-trigger hysteresis (0.07–1.31 V), and SC70-5 package compatibility with space-constrained PCB layouts.

Technical Context

The SN74AUP1G17DCKR implements a noninverting Schmitt-trigger logic gate with hysteresis defined by VT+ and VT− thresholds that vary with VCC (e.g., 0.91–1.29 V and 0.47–0.84 V at 1.65 V). Its Ioff circuitry actively disables outputs during power-down, limiting leakage to ≤0.6 µA over temperature and preventing backflow current into powered-down subsystems.

It uses balanced CMOS push-pull output drivers capable of ±4 mA drive at 3 V while maintaining low dynamic power (Cpd = 4.4 pF typical at 3.3 V) and low noise (<10% overshoot/undershoot). Input overvoltage tolerance up to 4.6 V enables safe interfacing with higher-voltage signals without level shifters.

Key Specifications

Pinout & Package

SN74AUP1G17DCKR is packaged in a 5-pin SC70 (SOT-353) case measuring 1.25 mm × 2.00 mm, optimized for high-density portable PCBs. The package features gull-wing leads and a thermal pad-less construction compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schmitt-trigger buffer applications.

Compared with SN74LVC1G17DCKR and NC7SZ17P5X, SN74AUP1G17DCKR uniquely combines sub-µA static current, Ioff-enabled power-domain isolation, and 0.8–3.6 V universal supply compatibility - making it the optimal choice for energy-constrained, mixed-voltage, and hot-pluggable embedded systems.

Availability

SN74AUP1G17DCKR is available at Aetrix Electronics and suitable for PC & notebook power sequencing, industrial sensor signal conditioning, gaming peripheral debounce, and grid infrastructure communication interface applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.

Supply support for SN74AUP1G17DCKR 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 decades of expertise in low-power logic design and high-reliability manufacturing.

The AUP family - including SN74AUP1G17DCKR - was engineered specifically for battery-powered portable electronics, delivering industry-leading static/dynamic power efficiency while maintaining robust signal integrity across wide voltage and temperature ranges.

FAQ

What is the maximum propagation delay of SN74AUP1G17DCKR at 3.3 V?

The maximum propagation delay (tpd) of SN74AUP1G17DCKR is 5.1 ns at VCC = 3.3 V ± 0.3 V, CL = 5 pF, and TA = –40°C to +85°C. This value is guaranteed across temperature and voltage extremes, ensuring predictable timing in point-to-point signal paths. SN74AUP1G17DCKR achieves this performance while consuming only 0.9 µA static current - a key differentiator versus competing low-voltage buffers.

Does SN74AUP1G17DCKR support partial power-down operation?

Yes, SN74AUP1G17DCKR fully supports partial power-down via its Ioff feature. When VCC = 0 V, all inputs and outputs enter a high-impedance state with leakage limited to ≤0.6 µA over temperature. This prevents current backflow into powered-down sections of the system - a critical requirement for hot-swap interfaces and multi-rail power architectures. SN74AUP1G17DCKR implements this without external components or control signals.

What is the input hysteresis range of SN74AUP1G17DCKR across its operating voltage?

SN74AUP1G17DCKR provides programmable hysteresis (ΔVT = VT+ – VT−) ranging from 0.07 V at 0.8 V VCC to 1.31 V at 3.0 V VCC. At 1.8 V, hysteresis is 0.27–0.66 V; at 2.3 V, it is 0.53–0.92 V. This voltage-scaled hysteresis ensures consistent noise margin across the full 0.8–3.6 V supply range - a core advantage of the AUP family. SN74AUP1G17DCKR leverages this to reject EMI and switch bounce without external components.

Can SN74AUP1G17DCKR inputs tolerate voltages above its supply rail?

Yes, SN74AUP1G17DCKR inputs are overvoltage tolerant up to 4.6 V regardless of VCC setting - as specified in Absolute Maximum Ratings. This allows direct interfacing with 3.3-V or 2.5-V signals even when operating from 1.8-V or 1.2-V supplies, eliminating level-shifters in mixed-voltage systems. SN74AUP1G17DCKR maintains full Schmitt-trigger functionality and input protection under these conditions, with no degradation in hysteresis or propagation delay.

What package type and dimensions does SN74AUP1G17DCKR use?

SN74AUP1G17DCKR uses the SC70-5 (also labeled DCK) package: a 5-pin gull-wing surface-mount outline measuring 1.25 mm × 2.00 mm with 0.65-mm lead pitch. It is identical in footprint to the industry-standard SOT-353 and compatible with standard reflow soldering processes. SN74AUP1G17DCKR's SC70 package enables high-density routing in space-constrained applications such as wearables, medical sensors, and ultra-thin notebooks.