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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Texas Instruments SN74AUP1T158DCKR

Name: SN74AUP1T158DCKR
Brand: Texas Instruments
SKU: SN74AUP1T158DCKR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74AUP1T158DCKR

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: SN74AUP1T158DCKR.pdf

Description:: IC MULTIPLEXER 1 X 2:1 SC70-6

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Product details

Overview

SN74AUP1T158DCKR from Texas Instruments is a single-supply 2-input Schmitt-trigger buffer multiplexer with inverted output, supporting 1.8-V/2.5-V/3.3-V input translation and delivering 3.3-V CMOS-level output. It features I_off support, 0.1 µA static current, 4 mA output drive, and operates across 2.3 V–3.6 V supply range. Used in low-power voltage-level translation between mixed-voltage subsystems in portable instrumentation and sensor interfaces.

For engineers reviewing the SN74AUP1T158DCKR datasheet, SN74AUP1T158DCKR pinout, SN74AUP1T158DCKR application, or SN74AUP1T158DCKR equivalent, key selection criteria include Schmitt-trigger hysteresis (ΔV_T = 210 mV), I_off behavior at V_CC = 0 V, 2.3–3.6 V supply flexibility, and SC-70 (DCK) 6-pin package compatibility with space-constrained PCB layouts.

Technical Context

This device implements a single 2-to-1 data selector with inverted output logic (Y = NOT[(C·A) + (NOT C·B)]), controlled by a common select input C. Its Schmitt-trigger inputs provide noise immunity with confirmed VT+ = 1.19 V / VT− = 0.5 V (at V_CC = 3.3 V), enabling robust operation with slow or noisy signals in mixed-signal environments.

The AUP logic family delivers ultra-low power: static ICC = 0.9 µA typical, dynamic power dissipation capacitance Cpd = 5 pF (at 3.3 V), and optimized 4 mA output drive to minimize signal reflections. I_off protection allows safe back-driving when V_CC = 0 V, supporting partial power-down in battery-powered systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.3 V to 3.6 V - enables flexible interfacing with 1.8-V, 2.5-V, and 3.3-V domains without external level shifters
Input Threshold Hysteresis	210 mV (ΔV_T) - rejects noise on slow-rising/falling signals and prevents false triggering in noisy analog-digital boundary applications
Static Current (I_CC)	0.9 µA typical - extends battery life in always-on sensor nodes and wearable electronics
Output Drive Strength	±4 mA - reduces overshoot/undershoot on 50-Ω traces and supports direct connection to microcontroller GPIOs
I_off Protection	Active at V_CC = 0 V - permits safe hot-insertion and partial power-down without damaging connected circuitry
Propagation Delay	1.6–4.4 ns (V_CC = 3.3 V, C_L = 5–30 pF) - meets timing requirements for sub-100-MHz digital control paths
ESD Rating	2000-V HBM, 1000-V CDM - satisfies industrial-grade robustness requirements without external protection diodes

Pinout & Package

SC-70 (DCK) package: 2.0 mm × 2.1 mm × 0.65 mm body, 1.1 mm max height, 6-pin surface-mount outline with pin 1 index area and Q3 quadrant orientation per tape-and-reel specification.

Pin/Terminal	Circuit Role	Design Meaning
1 (A)	Data Input A	First multiplexer data source; accepts 1.8-V LVCMOS inputs regardless of V_CC level
2 (C)	Select Input	Controls data routing: C = L selects B, C = H selects A; Schmitt-triggered for noise immunity
3 (B)	Data Input B	Second multiplexer data source; identical input specification to Pin 1
4 (GND)	Ground Reference	Return path for all internal logic and output drivers; must be low-impedance for stable noise margin
5 (Y)	Inverted Output	Delivers CMOS-level inverted multiplexed signal (Y = NOT[(C·A)+(NOT C·B)]) with 4 mA drive capability
6 (V_CC)	Power Supply	Single supply input (2.3–3.6 V); powers internal logic and defines output high-level voltage (VOH ≈ V_CC − 0.1 V)

Key Features

Feature	Design Value
Single-supply voltage translation	Accepts 1.8-V/2.5-V inputs while generating 3.3-V CMOS outputs from one V_CC, eliminating dual-rail supplies
Schmitt-trigger inputs	210-mV hysteresis ensures clean switching on slow or noisy signals-critical for ADC reference selection and sensor wake-up lines
I_off protection	Prevents current backflow and device damage when V_CC = 0 V, enabling safe power sequencing in multi-rail systems
Ultra-low static power	0.9 µA typical ICC allows use in always-on monitoring circuits without compromising battery runtime
Optimized output drive	4 mA drive strength balances signal integrity and EMI-reduces ringing on short PCB traces without requiring series termination

Applications

Industrial Sensor Interface	Portable Medical Device
Use Scenario: Selecting between two analog sensor outputs (e.g., temperature and humidity) before feeding into a shared ADC channel with inverted logic polarity requirement. IC Role / Device Role / Timing Role: Voltage-level translating multiplexer with Schmitt-triggered select line to reject EMI from motor drives near sensor wiring. Use Value: Eliminates need for discrete level shifters and RC filters; 210-mV hysteresis prevents chatter during sensor signal transitions near threshold.	Use Scenario: Routing battery voltage monitoring and button-press interrupt signals to a low-power MCU in a glucose meter with strict standby current budget. IC Role / Device Role / Timing Role: Low-quiescent-current signal selector enabling partial power-down of MCU peripherals while maintaining wake-up capability. Use Value: 0.9 µA static current preserves battery life; I_off allows safe disconnection of V_CC during deep sleep without damaging upstream sensors.
IoT Edge Node	Automotive Body Control Module
Use Scenario: Multiplexing UART TX lines from two BLE/Wi-Fi modules onto a single MCU UART RX pin, with inversion matching firmware expectations. IC Role / Device Role / Timing Role: Logic-level translator and signal conditioner ensuring clean edge detection despite varying module IO voltages (1.8 V vs. 3.3 V). Use Value: Single V_CC simplifies power design; propagation delay <4.4 ns supports 1 Mbps UART without timing violation.	Use Scenario: Selecting between two LIN bus diagnostic signals (e.g., door lock status and window position) for centralized reporting via CAN gateway. IC Role / Device Role / Timing Role: Robust signal selector immune to automotive electrical noise, with ESD rating meeting ISO 10605 Class II requirements. Use Value: 2000-V HBM ESD withstand eliminates need for external TVS diodes on LIN signal lines, reducing BOM count.

Industrial Sensor Interface

Portable Medical Device

Use Scenario: Selecting between two analog sensor outputs (e.g., temperature and humidity) before feeding into a shared ADC channel with inverted logic polarity requirement.

IC Role / Device Role / Timing Role: Voltage-level translating multiplexer with Schmitt-triggered select line to reject EMI from motor drives near sensor wiring.

Use Value: Eliminates need for discrete level shifters and RC filters; 210-mV hysteresis prevents chatter during sensor signal transitions near threshold.

Use Scenario: Routing battery voltage monitoring and button-press interrupt signals to a low-power MCU in a glucose meter with strict standby current budget.

IC Role / Device Role / Timing Role: Low-quiescent-current signal selector enabling partial power-down of MCU peripherals while maintaining wake-up capability.

Use Value: 0.9 µA static current preserves battery life; I_off allows safe disconnection of V_CC during deep sleep without damaging upstream sensors.

IoT Edge Node

Automotive Body Control Module

Use Scenario: Multiplexing UART TX lines from two BLE/Wi-Fi modules onto a single MCU UART RX pin, with inversion matching firmware expectations.

IC Role / Device Role / Timing Role: Logic-level translator and signal conditioner ensuring clean edge detection despite varying module IO voltages (1.8 V vs. 3.3 V).

Use Value: Single V_CC simplifies power design; propagation delay <4.4 ns supports 1 Mbps UART without timing violation.

Use Scenario: Selecting between two LIN bus diagnostic signals (e.g., door lock status and window position) for centralized reporting via CAN gateway.

IC Role / Device Role / Timing Role: Robust signal selector immune to automotive electrical noise, with ESD rating meeting ISO 10605 Class II requirements.

Use Value: 2000-V HBM ESD withstand eliminates need for external TVS diodes on LIN signal lines, reducing BOM count.

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-supply level-shifting multiplexer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1T45DCKR	Bidirectional level shifter (no inversion); lacks Schmitt-trigger inputs; higher ICC (10 µA)	Requires external inversion logic; less noise-immune on slow select lines	Choose when bidirectional data flow is needed and noise environment is benign
SN74AUC1G157DCKR	Non-inverting 2:1 mux; same AUP family, identical I_off and power specs; no hysteresis	Cannot replace SN74AUP1T158DCKR where output inversion is required by system logic	Choose only if system architecture allows non-inverted output and noise immunity is secondary

Compared with SN74LVC1T45DCKR and SN74AUC1G157DCKR, the SN74AUP1T158DCKR uniquely combines inversion, Schmitt-trigger inputs, and ultra-low power-making it irreplaceable in noise-prone, battery-sensitive applications requiring precise logic polarity.

Availability

SN74AUP1T158DCKR is available at Aetrix Electronics and suitable for industrial sensor interface, portable medical device, IoT edge node, and automotive body control module applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant SC-70 packaging.

Supply support for SN74AUP1T158DCKR 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 industrial, automotive, and consumer electronics.

The SN74AUP1T158DCKR belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, designed specifically for extending battery life in portable and energy-harvesting systems while maintaining robust signal integrity across mixed-voltage domains.

FAQ

What is the function of the SN74AUP1T158DCKR?

The SN74AUP1T158DCKR is a single 2-input Schmitt-trigger buffer multiplexer with inverted output. It selects between data inputs A and B using select input C, then outputs the selected signal in inverted form (Y = NOT[(C·A)+(NOT C·B)]). Its design enables reliable voltage translation and noise rejection in low-power digital systems.

Does the SN74AUP1T158DCKR support partial power-down?

Yes, the SN74AUP1T158DCKR features I_off protection that remains active when V_CC = 0 V. Under this condition, signals from 0 V to 3.6 V may be safely applied to inputs or outputs without damage-making the SN74AUP1T158DCKR ideal for hot-swap and partial-power-down architectures in portable electronics.

What is the hysteresis value of the Schmitt-trigger inputs on the SN74AUP1T158DCKR?

The SN74AUP1T158DCKR has a confirmed input hysteresis ΔV_T = V_T+ − V_T− = 210 mV (typical) at V_CC = 3.3 V, with VT+ = 1.19 V and VT− = 0.5 V. This hysteresis provides strong noise immunity for slow or noisy select and data signals-critical in mixed-signal PCB layouts near motors or RF sections.

Can the SN74AUP1T158DCKR translate 1.8-V inputs to 3.3-V outputs?

Yes, the SN74AUP1T158DCKR is explicitly designed as a single-supply voltage translator: it accepts 1.8-V LVCMOS inputs while operating from a 3.3-V V_CC, and delivers full 3.3-V CMOS-level outputs (VOH ≥ 2.55 V, VOL ≤ 0.45 V). This eliminates the need for external level-shifting components in mixed-voltage systems.

What package type is used for the SN74AUP1T158DCKR?

The SN74AUP1T158DCKR uses the SC-70 (DCK) package: a 6-pin surface-mount outline measuring 2.0 mm × 2.1 mm × 0.65 mm body size with 1.1 mm maximum height. It is RoHS-compliant, moisture sensitivity level 1, and supplied in 3000-unit tape-and-reel format with Q3 pin-1 quadrant orientation.

SN74AUP1T158DCKR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74AUP

Package/Case:: 6-TSSOP, SC-88, SOT-363

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Multiplexer

Circuit:: 1 x 2:1

Independent Circuits:: 1

Current - Output High, Low:: 4mA, 4mA

Voltage Supply Source:: Single Supply

Voltage - Supply:: 2.3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-70-6

SN74AUP1T158DCKR FAQ

1.How can I place an order for SN74AUP1T158DCKR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74AUP1T158DCKR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SN74AUP1T158DCKR reliable?

The price and inventory of SN74AUP1T158DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1T158DCKR is usually 5 days.

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Once your SN74AUP1T158DCKR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SN74AUP1T158DCKR?

For technical support, including SN74AUP1T158DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1T158DCKR requirements.

6.How does Aetrix verify that SN74AUP1T158DCKR is sourced from the original manufacturer or authorized distributors?

All SN74AUP1T158DCKR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74AUP1T158DCKR meets industry standards.

7.What is the process for return or replacement of SN74AUP1T158DCKR?

All SN74AUP1T158DCKR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1T158DCKR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SN74AUP1T158DCKR part is unused and in its original packaging.

Return procedure for SN74AUP1T158DCKR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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