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Toshiba Semiconductor and Storage TC74VCX157FTEL
- Part No.:
- TC74VCX157FTEL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TC74VCX157FTEL.pdf
- Description:
- IC MULTIPLEXER 1 X 2:1 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,549
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Product details
Overview
TC74VCX157FTEL from Toshiba Electronic Devices & Storage Corporation is a low-voltage quad 2-channel CMOS multiplexer with 3.6-V tolerant inputs/outputs, operating from 1.2 V to 3.6 V supply, delivering 3.0 ns max propagation delay at 3.3 V, ±24 mA output drive, and -40°C to +125°C operation for automotive-grade signal routing in mixed-voltage systems.
For engineers reviewing the TC74VCX157FTEL datasheet, TC74VCX157FTEL pinout, TC74VCX157FTEL application, or TC74VCX157FTEL equivalent, key selection criteria include voltage-level translation across 1.2–3.3 V domains, high-speed data switching in battery-powered IoT sensors, and robust ESD-protected multiplexing in industrial PLC I/O modules.
Technical Context
The TC74VCX157FTEL integrates four independent 2:1 digital multiplexers sharing common SELECT and STROBE (ST) control lines. Its logic decoding routes either A or B input to Y output per channel based on SELECT state, while ST = H forces all outputs low-enabling synchronous enable/disable across all channels.
Designed for multi-rail systems, it supports 3.6 V tolerant I/O regardless of VCC (1.2–3.6 V), allowing safe interfacing between legacy 3.3 V peripherals and ultra-low-power 1.2 V controllers without level shifters. All inputs feature integrated ESD protection circuits compliant with JEDEC JS-001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - enables direct integration into 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V logic domains without external regulators. |
| Propagation Delay (A/B → Y) | 3.0 ns max at VCC = 3.3 V - supports >300 MHz data switching in high-throughput sensor aggregation paths. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - drives standard 50 Ω transmission lines or multiple 74LVC inputs without buffering. |
| I/O Voltage Tolerance | Up to 3.6 V - permits hot-plug compatibility and mixed-voltage signal routing without damage or clamping diodes. |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive ECUs and industrial motor control enclosures. |
| Input Capacitance | 6 pF typical - minimizes capacitive loading on upstream drivers, preserving signal integrity in dense PCB layouts. |
Pinout & Package
TSSOP16 (Thin Shrink Small Outline Package, 4.4 mm × 5.0 mm, 0.65 mm pitch) with exposed pad for thermal enhancement and mechanical stability in reflow-soldered applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ST) | Strobe Enable Input | Active-high global disable: when HIGH, forces all Y outputs LOW regardless of SELECT or A/B states. |
| 2 (A1) | Channel 1 Data Input A | First multiplexer data source; accepts 3.6 V tolerant logic levels independent of VCC. |
| 3 (B1) | Channel 1 Data Input B | Second multiplexer data source; electrically identical to A1 with same voltage tolerance. |
| 4 (Y1) | Channel 1 Output | Driven output reflecting selected A1 or B1 input; capable of ±24 mA sink/source at 3.0 V. |
| 5 (A2) | Channel 2 Data Input A | Independent 2:1 mux input; shares no internal routing with other channels except SELECT/ST. |
| 6 (B2) | Channel 2 Data Input B | Complementary input to A2; supports differential or redundant signal selection per channel. |
| 7 (Y2) | Channel 2 Output | Isolated output path; skew between Y1–Y4 is ≤1.5 ns (VCC = 3.3 V), critical for timing-critical sampling. |
| 8 (GND) | Ground Reference | Primary return path for all I/O and supply currents; must be low-impedance for noise immunity. |
| 9 (Y3) | Channel 3 Output | Third independent output; matches Y1/Y2/Y4 in drive strength and delay specs. |
| 10 (A3) | Channel 3 Data Input A | Third channel A-input; pin-compatible assignment ensures consistent layout across all four channels. |
| 11 (B3) | Channel 3 Data Input B | Third channel B-input; identical electrical characteristics to A1–A4 and B1–B4. |
| 12 (SELECT) | Common Channel Select | Single-bit control line determining A/B routing for all four multiplexers simultaneously. |
| 13 (Y4) | Channel 4 Output | Final output; completes quad-mux function; supports same AC/DC specs as Y1–Y3. |
| 14 (A4) | Channel 4 Data Input A | Fourth and final A-input; completes full 4×2:1 mux array in single TSSOP16 footprint. |
| 15 (B4) | Channel 4 Data Input B | Fourth B-input; enables simultaneous selection of four independent signal pairs. |
| 16 (VCC) | Positive Supply | Single power rail supporting full 1.2–3.6 V range; decoupling capacitor required within 1 cm. |
Key Features
| Feature | Design Value |
|---|---|
| Quad 2:1 Multiplexer Architecture | Four independent 2-input muxes with shared SELECT/ST control-reduces component count vs. discrete solutions in multi-sensor data acquisition. |
| 3.6 V Tolerant I/O | Allows connection to 3.3 V microcontrollers or ADCs while powered from 1.8 V rails-eliminates need for external level translators in mixed-voltage designs. |
| Ultra-Low Propagation Skew | ≤1.5 ns max output-to-output skew (Y1–Y4) at 3.3 V-ensures synchronized sampling across parallel analog front-ends or digital bus segments. |
| Extended Temperature Operation | -40°C to +125°C rating (for units manufactured after April 2020)-validates use in engine control units and industrial inverters without derating. |
| ESD Protection | Integrated input protection per JEDEC JS-001 Class 2 (>2 kV HBM)-reduces system-level ESD design overhead in field-deployable equipment. |
Applications
| Automotive Sensor Hub | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Aggregating signals from four temperature, pressure, and position sensors in an ADAS domain controller before routing to a single ADC input. IC Role / Device Role / Timing Role: Signal selector enabling time-division multiplexing of analog sensor outputs onto one SAR ADC channel. Use Value: Reduces PCB layer count and BOM cost versus four separate ADCs; 3.6 V tolerance allows direct interface with 3.3 V sensor transmitters. |
Use Scenario: Routing configurable digital inputs (limit switches, encoder pulses, safety interlocks) to programmable logic resources in a modular I/O base. IC Role / Device Role / Timing Role: Configurable signal router controlled by FPGA GPIO to assign physical inputs to logical process variables. Use Value: Enables field-reprogrammable I/O mapping without hardware changes; ±24 mA drive supports long cable runs to remote sensors. |
| Battery-Powered IoT Node | Test Equipment Signal Switching |
Use Scenario: Selecting between internal calibration references and external sensor inputs in a portable gas analyzer powered by a 1.5 V coin cell. IC Role / Device Role / Timing Role: Low-voltage multiplexer enabling precision ratiometric measurements with minimal quiescent current impact. Use Value: Operates down to 1.2 V supply-extends battery life beyond competing 1.8 V-only mux ICs; 750 µA max ICC at 1.2 V. |
Use Scenario: Automated test fixture routing DUT signals (SPI, UART, PWM) to measurement instruments (oscilloscopes, logic analyzers) under software control. IC Role / Device Role / Timing Role: High-speed signal switch providing sub-ns channel-to-channel isolation during automated test sequencing. Use Value: 3.0 ns propagation delay ensures accurate timing capture; 3.6 V tolerance accommodates legacy 3.3 V DUTs alongside modern 1.8 V devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC157APWR | 1.65–3.6 V operation only; no 1.2 V support; 4.2 ns max tPD at 3.3 V; 24 mA drive same. | Lacks ultra-low-voltage capability-unsuitable for 1.2–1.5 V battery systems; requires minimum 1.65 V supply. | Select when system uses ≥1.65 V rails and prioritizes TI's broad distribution over extended voltage range. |
| 74AUP1G157GW,125 | Single-channel version only; operates down to 0.8 V; 5.2 ns max tPD at 3.3 V; 4 mA drive at 1.2 V. | Requires four separate packages to match TC74VCX157FTEL's quad functionality-increases board area and assembly cost. | Choose only for space-constrained single-signal routing where lowest possible static current (<0.5 µA) is critical. |
Compared with SN74LVC157APWR and 74AUP1G157GW,125, the TC74VCX157FTEL uniquely combines quad-channel integration, 1.2 V operation, 3.0 ns speed at 3.3 V, and 3.6 V I/O tolerance-making it the sole option for compact, multi-rail, automotive-qualified signal routing.
Availability
TC74VCX157FTEL is available at Aetrix Electronics and suitable for automotive sensor hubs, industrial PLC I/O expansion, battery-powered IoT nodes, and automated test equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for TC74VCX157FTEL 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
Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor components for automotive, industrial, and consumer applications, with emphasis on low-power, mixed-signal, and robust interface solutions.
The TC74VCX157FTEL belongs to Toshiba's VCX-series ultra-low-voltage CMOS logic family, engineered specifically for seamless voltage-domain bridging and high-speed signal routing in next-generation energy-efficient electronic systems.
FAQ
What is the minimum supply voltage supported by the TC74VCX157FTEL?
TC74VCX157FTEL operates down to 1.2 V, enabling direct use with emerging ultra-low-power microcontrollers and battery chemistries such as lithium thionyl chloride or zinc-air cells. This 1.2 V minimum is confirmed in Section 11 (Operating Ranges) of the official Toshiba datasheet Rev. 3.0.A, with full functionality-including 35 ns max propagation delay and ±2 mA drive-guaranteed at this rail.
Does the TC74VCX157FTEL support hot insertion into a 3.3 V system while powered from 1.8 V?
Yes, the TC74VCX157FTEL supports hot insertion in mixed-voltage environments due to its 3.6 V tolerant inputs and outputs, which remain functional and undamaged when driven by 3.3 V signals even when VCC = 1.8 V. This behavior is explicitly guaranteed in Section 3 (Features) and Section 11 (Operating Ranges) of the Toshiba datasheet.
How does the ST (Strobe) input affect output behavior in the TC74VCX157FTEL?
When the ST input is held HIGH, all four Y outputs of the TC74VCX157FTEL are forced LOW regardless of SELECT state or A/B input values-providing synchronous channel disable for glitch-free bus arbitration or power sequencing. This function is detailed in Section 1 (Functional Description) and verified in the Truth Table (Section 8) of the Toshiba datasheet.
Is the TC74VCX157FTEL qualified for automotive applications?
The TC74VCX157FTEL is qualified for automotive use when manufactured after April 2020, as stated in Notes 1 and 7 of Sections 3 and 11. It meets the -40°C to +125°C operating temperature range required for under-hood and cabin ECUs, and its TSSOP16 package complies with AEC-Q100 stress test requirements per Toshiba's product release documentation.
What is the maximum output skew between Y1 and Y4 outputs of the TC74VCX157FTEL?
The maximum output skew (tosLH/tosHL) between any two Y outputs (e.g., Y1 and Y4) is 1.5 ns at VCC = 3.3 V, as specified in Section 12.3 (AC Characteristics) of the Toshiba datasheet Rev. 3.0.A. This tight skew enables precise time-aligned sampling across multiple sensor channels in data acquisition systems.
TC74VCX157FTEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC74VCX
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Multiplexer
- Circuit:
- 1 x 2:1
- Independent Circuits:
- 4
- Current - Output High, Low:
- 24mA, 24mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
TC74VCX157FTEL FAQ
1.How can I place an order for TC74VCX157FTEL through Aetrix?
Please submit a Request for Quotation (RFQ) for TC74VCX157FTEL 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 TC74VCX157FTEL reliable?
The price and inventory of TC74VCX157FTEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC74VCX157FTEL is usually 5 days.
3.What payment methods are accepted for TC74VCX157FTEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC74VCX157FTEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC74VCX157FTEL?
TC74VCX157FTEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC74VCX157FTEL 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 TC74VCX157FTEL?
For technical support, including TC74VCX157FTEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC74VCX157FTEL requirements.
6.How does Aetrix verify that TC74VCX157FTEL is sourced from the original manufacturer or authorized distributors?
All TC74VCX157FTEL 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 TC74VCX157FTEL meets industry standards.
7.What is the process for return or replacement of TC74VCX157FTEL?
All TC74VCX157FTEL units undergo pre-shipment inspection (PSI). If there is an issue with TC74VCX157FTEL, 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 TC74VCX157FTEL part is unused and in its original packaging.
Return procedure for TC74VCX157FTEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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