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Texas Instruments SN74LVC258APWR
- Part No.:
- SN74LVC258APWR
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVC258APWR.pdf
- Description:
- QUADRUPLE 2-LINE TO 1-LINE DATA
- Quantity:
- Payment:
- Shipping:
Inventory:1,200
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Product details
Overview
SN74LVC258APWR from Texas Instruments is a quadruple 2-line-to-1-line inverting data selector/multiplexer with 3-state outputs, operating across 1.1V–3.6V supply, supporting 5.5V over-voltage tolerant inputs, and delivering ±24mA drive at 3.3V for bus switching in low-voltage embedded control systems.
For engineers reviewing the SN74LVC258APWR datasheet, SN74LVC258APWR pinout, SN74LVC258APWR application, or SN74LVC258APWR equivalent, this device serves as a voltage-scalable, high-drive multiplexer for bidirectional data routing in mixed-supply FPGA I/O interfaces, microcontroller peripheral selection, and legacy bus arbitration where output inversion and 3-state control are required.
Technical Context
The SN74LVC258APWR implements four independent 2:1 multiplexers sharing a common A/B select line and active-low OE control, each producing inverted output logic (Y = NOT[(A AND NOT B) OR (B AND A)]). All channels switch synchronously with propagation delay as low as 3.0ns at 3.3V/50pF load.
Its balanced CMOS 3-state outputs support partial-power-down (Ioff) with <±10µA leakage when VCC = 0V, and tolerate input voltages up to 5.5V regardless of VCC - enabling safe level translation between 1.8V/2.5V/3.3V domains and 5V legacy signals without external clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.1V to 3.6V - supports direct interface with modern low-voltage MCUs and FPGAs without level shifters |
| Input Voltage Tolerance | Up to 5.5V independent of VCC - enables robust interfacing with 5V peripherals in mixed-voltage systems |
| Output Drive Strength | ±24mA at 3.3V - sufficient to drive 50pF loads with fast edge rates and minimal signal degradation |
| Max Propagation Delay | 6.4ns at 3.3V/50pF - meets timing requirements for 100+ MHz data bus switching in real-time control |
| Ioff Leakage Current | ±10µA at VCC = 0V - prevents back-driving and ensures safe operation during power sequencing |
| ESD Rating (HBM) | ±2000V - exceeds JEDEC JS-001 for reliable handling in standard manufacturing environments |
| Operating Temperature | −40°C to +125°C - qualified for automotive under-hood and industrial motor control applications |
Pinout & Package
TSSOP-16 (PW) package: 5mm × 6.4mm body size, 0.65mm pitch, surface-mount, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A/B | Select control input | Common 2:1 source selector for all four channels; LOW = route A-input, HIGH = route B-input |
| 1A–4A, 1B–4B | Data inputs | Eight dedicated inputs (four A-side, four B-side); each pair feeds one multiplexer channel |
| 1Y–4Y | Inverted 3-state outputs | Four independent inverted outputs; high-impedance when OE = HIGH |
| OE | Active-low output enable | Global 3-state control: LOW enables outputs, HIGH disables all outputs to high-Z |
| VCC | Positive supply | Single 1.1V–3.6V supply powering logic core and output drivers |
| GND | Ground reference | Return path for all supply and signal currents; must be low-impedance for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Over-voltage tolerant inputs | Supports 5.5V inputs at any VCC (1.1V–3.6V), eliminating need for external voltage translators in mixed-supply systems |
| Partial-power-down protection (Ioff) | Blocks current flow between powered and unpowered sections during hot-insertion or partial shutdown |
| Balanced push-pull 3-state outputs | Sinks and sources equal current (±24mA @ 3.3V), enabling clean driving of capacitive buses and termination networks |
| Low propagation delay | 3.0ns typical tpd at 3.3V/30pF enables use in high-speed address/data multiplexing for microcontrollers and ASICs |
| Wide temperature range | Rated for −40°C to +125°C operation, suitable for engine control units, industrial PLCs, and outdoor IoT gateways |
Applications
| Microcontroller Peripheral Selection | FPGA I/O Multiplexing |
|---|---|
Use Scenario: Selecting between two UART, SPI, or GPIO banks connected to a single MCU port. IC Role / Device Role / Timing Role: Data selector routing alternate peripheral sets using shared control lines (A/B, OE). Use Value: Reduces PCB layer count by consolidating dual-peripheral access onto one bus, with deterministic 6.4ns max delay. |
Use Scenario: Arbitrating between two external memory or sensor interfaces sharing FPGA I/O pins. IC Role / Device Role / Timing Role: Inverting 3-state multiplexer enabling time-multiplexed access without signal contention. Use Value: Enables FPGA pin reuse while maintaining signal integrity via 5.5V-tolerant inputs and ±24mA drive into 50pF loads. |
| Legacy Bus Interface Translation | Industrial Sensor Data Aggregation |
Use Scenario: Interfacing 5V industrial sensors to 3.3V or 1.8V microcontrollers in factory automation. IC Role / Device Role / Timing Role: Level-translating multiplexer with built-in 5.5V input tolerance and output inversion. Use Value: Eliminates discrete level shifters and pull-up networks, reducing BOM cost and board space by >30%. |
Use Scenario: Consolidating analog sensor readings (via ADCs) or digital status signals from multiple field devices. IC Role / Device Role / Timing Role: Synchronized 4-channel data selector enabling time-division sampling under MCU control. Use Value: Provides deterministic, low-jitter routing with thermal stability across −40°C to +125°C ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-to-1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC157APWR | Non-inverting outputs; identical pinout, supply range, and drive strength | Requires logic inversion in downstream circuitry if output polarity must match SN74LVC258APWR behavior | Select when system-level logic requires non-inverted multiplexed data and layout reuse is critical |
| 74LVC258PW,118 (Nexperia) | Same function and pinout; slightly higher max tpd (7.5ns @ 3.3V) and lower Ioff (±5µA) | Valid drop-in replacement for cost-sensitive industrial designs where 1.1ns timing margin is acceptable | Choose for second-source assurance in high-volume production with identical footprint and routing |
Compared with SN74LVC258APWR, SN74LVC157APWR eliminates output inversion but demands external logic adjustment, while 74LVC258PW,118 offers full functional equivalence with minor timing and leakage trade-offs - making both viable for design continuity without PCB revision.
Availability
SN74LVC258APWR is available at Aetrix Electronics and suitable for microcontroller peripheral selection, FPGA I/O multiplexing, legacy bus interface translation, and industrial sensor data aggregation requiring stable component supply across automotive, industrial, and embedded computing programs.
Supply support for SN74LVC258APWR 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 leadership in logic IC innovation and automotive-grade qualification.
The SN74LVC258APWR belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for high-speed, low-power operation in mixed-voltage systems - specifically targeting space-constrained, thermally demanding applications in automotive control modules and industrial edge nodes.
FAQ
What is the maximum input voltage the SN74LVC258APWR can tolerate?
The SN74LVC258APWR supports input voltages up to 5.5V regardless of VCC level - a key feature enabling direct interfacing with 5V legacy peripherals in 1.8V/2.5V/3.3V systems without external level-shifting components. This over-voltage tolerance is guaranteed per TI's datasheet SCLSA19 and applies to all input pins including A/B, 1A–4B, and OE. Operation within this limit maintains full functionality and reliability across the full −40°C to +125°C temperature range.
Does the SN74LVC258APWR support partial power-down mode?
Yes, the SN74LVC258APWR implements Ioff partial-power-down protection: when VCC = 0V, all I/O pins are disabled and leakage is limited to ±10µA maximum, preventing back-current flow between powered and unpowered system sections. This feature is explicitly verified in the Electrical Characteristics table (Section 5.5) and supports safe hot-plug and power-sequence-flexible designs in modular industrial equipment and automotive ECUs where subsystems power up/down independently.
What is the output logic polarity of the SN74LVC258APWR?
The SN74LVC258APWR provides inverted outputs: Y = NOT[(A AND NOT B) OR (B AND A)]. For example, when A/B = LOW, Y = NOT(A); when A/B = HIGH, Y = NOT(B). This inversion is inherent to the device architecture and is confirmed in the Functional Diagram (Figure 4-1), Function Table (Table 7-1), and Description section of the datasheet. It must be accounted for in system-level logic design - unlike non-inverting equivalents such as SN74LVC157APWR.
Can the SN74LVC258APWR drive a 50pF load at 3.3V while meeting timing specs?
Yes - the SN74LVC258APWR guarantees a maximum propagation delay of 6.4ns at VCC = 3.3V with CL = 50pF (Section 5.6, tpd specification), and delivers ±24mA output drive under those conditions. This performance is validated across −40°C to +125°C and ensures reliable operation driving typical PCB traces, connectors, and CMOS inputs in high-density embedded systems. Exceeding 50pF is possible but may degrade timing margins and increase ringing risk without proper termination.
What package options are available for the SN74LVC258APWR?
The SN74LVC258APWR is exclusively offered in the TSSOP-16 (PW) package: 5mm × 6.4mm body size, 0.65mm lead pitch, surface-mount, RoHS-compliant, and optimized for automated assembly. While the base SN74LVC258A part number also appears in SOIC-16 (D package), the "PWR" suffix specifically denotes the TSSOP variant - confirmed in TI's official packaging documentation and orderable part matrix. No QFN, VQFN, or WQFN variants exist for this device.
SN74LVC258APWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Data Selector/Multiplexer
- Circuit:
- 4 x 2:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 24mA, 24mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.1V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
SN74LVC258APWR FAQ
1.How can I place an order for SN74LVC258APWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC258APWR 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 SN74LVC258APWR reliable?
The price and inventory of SN74LVC258APWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC258APWR is usually 5 days.
3.What payment methods are accepted for SN74LVC258APWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC258APWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC258APWR?
SN74LVC258APWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC258APWR 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 SN74LVC258APWR?
For technical support, including SN74LVC258APWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC258APWR requirements.
6.How does Aetrix verify that SN74LVC258APWR is sourced from the original manufacturer or authorized distributors?
All SN74LVC258APWR 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 SN74LVC258APWR meets industry standards.
7.What is the process for return or replacement of SN74LVC258APWR?
All SN74LVC258APWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC258APWR, 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 SN74LVC258APWR part is unused and in its original packaging.
Return procedure for SN74LVC258APWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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