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Renesas 74LV157AFP-E
- Part No.:
- 74LV157AFP-E
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
74LV157AFP-E.pdf
- Description:
- QUAD 2-TO-1 LINE DATA SELECTORS
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
74LV157AFP-E from Renesas Electronics is a quad 2-to-1 noninverting digital multiplexer IC with common select and strobe control, operating from 2.0 V to 5.5 V supply, delivering propagation delays as low as 4.1 ns (VCC = 5.0 V, CL = 15 pF), and supporting ±12 mA output drive at 5 V - used for data routing in battery-powered embedded controllers and logic interface subsystems.
For engineers reviewing the 74LV157AFP-E datasheet, 74LV157AFP-E pinout, 74LV157AFP-E application, or 74LV157AFP-E equivalent, this page delivers verified electrical specs, SOP-16 package mapping, functional role in signal selection architectures, and validated alternative parts for design continuity and sourcing flexibility.
Technical Context
The 74LV157AFP-E implements four independent 2-input multiplexers sharing one active-low STB and one SEL input; when STB is low, outputs Y1–Y4 reflect selected inputs (A or B) per channel, with true (noninverted) output logic. It uses CMOS technology optimized for low-voltage operation and reduced ground bounce.
Its input tolerance supports 5.5 V maximum regardless of VCC (including VCC = 0 V), enabling mixed-voltage interfacing; output voltage swing spans 0 to VCC, and dynamic noise margins are specified with VOL(P) ≤ 0.8 V and VOH(V) ≥ 3.0 V at VCC = 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - enables direct integration into 3.3 V and 5 V logic systems without level-shifting. |
| Propagation Delay (tPLH/tPHL) | 4.1 ns min @ VCC = 5.0 V, CL = 15 pF - supports high-speed data routing in real-time control paths. |
| Output Drive Current | ±12 mA @ VCC = 4.5–5.5 V - drives multiple standard TTL or CMOS loads without external buffers. |
| Input Voltage Tolerance | VIH/ VIL up to 5.5 V regardless of VCC - allows safe interfacing with higher-voltage peripherals. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications including automation and instrumentation. |
| Power Dissipation Capacitance | 12.0 pF @ VCC = 5.0 V, f = 10 MHz - quantifies dynamic power consumption for low-power system budgeting. |
Pinout & Package
SOP-16 (JEITA package code FP-16DAV), surface-mount plastic small-outline package with 1.27 mm lead pitch, 10.06 mm × 4.4 mm body, and Ni/Pd/Au plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SEL) | Select control input | Common 2:1 selector for all four channels; high selects B inputs, low selects A inputs. |
| 2 (1A) | Channel 1 data input A | First multiplexer's low-side data source; routed to 1Y when SEL = L and STB = L. |
| 3 (1B) | Channel 1 data input B | First multiplexer's high-side data source; routed to 1Y when SEL = H and STB = L. |
| 4 (1Y) | Channel 1 noninverted output | True output of first 2:1 mux; no inversion applied to selected input. |
| 5 (2A) | Channel 2 data input A | Second multiplexer's low-side data source; synchronized with SEL/STB timing. |
| 6 (2B) | Channel 2 data input B | Second multiplexer's high-side data source; shares same SEL/STB control logic. |
| 7 (2Y) | Channel 2 noninverted output | True output of second 2:1 mux; electrically isolated but functionally identical to 1Y. |
| 8 (GND) | Ground reference | Primary return path for all internal logic and I/O; must be low-impedance for noise immunity. |
| 9 (3B) | Channel 3 data input B | Third multiplexer's high-side input; part of 4-channel parallel data selection group. |
| 10 (3A) | Channel 3 data input A | Third multiplexer's low-side input; complements 3B under shared SEL/STB control. |
| 11 (3Y) | Channel 3 noninverted output | True output of third 2:1 mux; matches timing and drive strength of other Y outputs. |
| 12 (4B) | Channel 4 data input B | Fourth multiplexer's high-side input; completes quad-mux functionality in single package. |
| 13 (4A) | Channel 4 data input A | Fourth multiplexer's low-side input; enables full 4-bit word selection capability. |
| 14 (4Y) | Channel 4 noninverted output | True output of fourth 2:1 mux; maintains consistent VOL/VOH across all four outputs. |
| 15 (STB) | Strobe enable input | Active-low global enable; forces all Y outputs low when high, overriding SEL state. |
| 16 (VCC) | Positive supply rail | Single power supply for entire device; supports wide range (2.0–5.5 V) with stable DC characteristics. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply voltage range | 2.0 V to 5.5 V operation - eliminates need for separate voltage regulators in mixed-supply systems. |
| 5.5 V-tolerant inputs | All inputs rated to 5.5 V even at VCC = 0 V - enables hot-swap and legacy interface compatibility. |
| Low ground bounce | Typical VOL ground bounce < 0.8 V @ 3.3 V - reduces switching noise coupling into sensitive analog sections. |
| High noise immunity | VIL(D) ≤ 0.99 V and VIH(D) ≥ 2.31 V @ 3.3 V - ensures robust operation in electrically noisy industrial environments. |
| Low quiescent current | ICC ≤ 20 µA @ VCC = 5.5 V - extends battery life in portable instrumentation and handheld devices. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Routing sensor signals from multiple temperature or pressure sensors to a single ADC input in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Quad 2:1 data selector enabling time-multiplexed acquisition of four analog channels using one ADC resource. Use Value: Reduces component count and PCB area versus discrete gate solutions while maintaining deterministic 4.1 ns propagation delay at 5 V. |
Use Scenario: Selecting between two CAN transceiver configurations or diagnostic bus sources in vehicle body domain controllers. IC Role / Device Role / Timing Role: Signal routing switch providing glitch-free bus arbitration via synchronous STB/SEL control. Use Value: Supports fail-safe reconfiguration with guaranteed 0.55 V VOL at 12 mA drive, ensuring reliable logic-level recognition by downstream receivers. |
| Portable Medical Monitor Interface | Test Equipment Signal Conditioning |
|
Use Scenario: Switching between ECG electrode pairs or calibration references in handheld patient monitors powered by Li-ion batteries. IC Role / Device Role / Timing Role: Low-voltage data multiplexer enabling 2.0 V operation to match ultra-low-power microcontroller I/O domains. Use Value: Delivers 6 mA drive at 3.3 V with < 0.44 V VOL, preserving SNR integrity during analog front-end signal path selection. |
Use Scenario: Configuring test fixture inputs to route DUT signals between oscilloscope, logic analyzer, and pattern generator interfaces. IC Role / Device Role / Timing Role: Reconfigurable signal path manager synchronizing multi-instrument access to shared DUT pins. Use Value: Provides 15.9 ns max tPHL at 2.5 V (CL = 15 pF), meeting sub-20 ns timing requirements for automated test system handshaking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-to-1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LV157ADR | TI part in SOIC-16; identical logic function and pinout, but VIH/VIL thresholds tighter (VCC × 0.7 / VCC × 0.3) and max tPHL 19.5 ns @ 2.5 V. | Valid for 2.5 V–5.5 V systems where Renesas' wider input tolerance is not required. | Drop-in replacement in 5 V designs; verify timing margin if operating below 3.0 V. |
| 74LVC157AD,118 | Nexperia part in SO-16; same pinout and function, but lower ICC (10 µA max), higher IOL (24 mA), and faster tPHL (3.5 ns @ 3.3 V). | Better suited for high-drive, low-quiescent-current applications like FPGA I/O expansion. | Requires validation of noise immunity (VIL(D)/VIH(D) not specified); preferred for new 3.3 V designs demanding speed/power balance. |
Compared with 74LV157AFP-E, SN74LV157ADR offers identical pin compatibility but narrower input thresholds, while 74LVC157AD,118 provides superior speed and drive at 3.3 V but lacks the 5.5 V-tolerant inputs critical for mixed-voltage legacy interface support.
Availability
74LV157AFP-E is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and portable medical instrumentation requiring stable component supply and long-term lifecycle assurance.
Supply support for 74LV157AFP-E 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
Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and logic ICs for industrial, automotive, and infrastructure markets.
The HD74LV157A family was designed for low-voltage, high-speed digital signal routing in battery-constrained and noise-sensitive embedded systems, emphasizing interoperability across mixed-supply logic domains.
FAQ
What is the maximum supply voltage rating for the 74LV157AFP-E?
The 74LV157AFP-E supports a supply voltage range of 2.0 V to 5.5 V, with absolute maximum VCC rated at 7.0 V. Operation beyond 5.5 V is not recommended, as DC and switching specifications are only guaranteed within the recommended 2.0–5.5 V range. The 74LV157AFP-E also tolerates 5.5 V on all inputs even when VCC = 0 V, enabling safe hot-insertion scenarios.
Does the 74LV157AFP-E support 3.3 V logic systems?
Yes, the 74LV157AFP-E is fully compatible with 3.3 V logic systems. At VCC = 3.3 V, it delivers typical propagation delays of 6.2–11.2 ns, supports ±6 mA output drive, and meets VIH ≥ 2.31 V and VIL ≤ 0.99 V for dynamic noise margin compliance. The 74LV157AFP-E maintains full functionality across the 2.0–5.5 V range without configuration changes.
What is the function of the STB pin on the 74LV157AFP-E?
The STB (strobe) pin on the 74LV157AFP-E is an active-low enable input that globally gates all four multiplexer outputs. When STB is high, all Y outputs are forced low regardless of SEL or input states. When STB is low, the outputs reflect the selected A or B inputs based on the SEL state. This allows synchronous data gating in time-critical control sequences.
Is the 74LV157AFP-E pin-compatible with older 74LS157 devices?
No, the 74LV157AFP-E is not pin-compatible with bipolar 74LS157 devices. While both implement quad 2-to-1 multiplexing, the 74LV157AFP-E uses SOP-16 (FP-16DAV) packaging and has different pin assignments - notably GND at Pin 8 and VCC at Pin 16 - whereas 74LS157 typically uses DIP-16 or SOIC-16 with VCC at Pin 16 but differing internal pin mapping. Direct replacement requires PCB layout revision.
What thermal considerations apply to the 74LV157AFP-E in continuous operation?
The 74LV157AFP-E has a maximum power dissipation of 500 mW in still air at Ta = 25°C (SOP package), with a storage temperature range of –65°C to +150°C. For continuous operation, junction temperature must remain ≤ 150°C; derating is required above 25°C ambient. Thermal resistance θJA is not explicitly specified, but layout best practices include minimizing copper pour isolation and avoiding adjacent heat sources to maintain reliability in industrial environments.
74LV157AFP-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74LV157AFP-E FAQ
1.How can I place an order for 74LV157AFP-E through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV157AFP-E 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 74LV157AFP-E reliable?
The price and inventory of 74LV157AFP-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV157AFP-E is usually 5 days.
3.What payment methods are accepted for 74LV157AFP-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV157AFP-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV157AFP-E?
74LV157AFP-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV157AFP-E 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 74LV157AFP-E?
For technical support, including 74LV157AFP-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV157AFP-E requirements.
6.How does Aetrix verify that 74LV157AFP-E is sourced from the original manufacturer or authorized distributors?
All 74LV157AFP-E 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 74LV157AFP-E meets industry standards.
7.What is the process for return or replacement of 74LV157AFP-E?
All 74LV157AFP-E units undergo pre-shipment inspection (PSI). If there is an issue with 74LV157AFP-E, 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 74LV157AFP-E part is unused and in its original packaging.
Return procedure for 74LV157AFP-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LV157AFP-E Tags
-
SN74HC138DR
Texas Instruments
-
TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
-
74CBTLV3257PW,118
Nexperia USA Inc.
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SN74CBTLV3257PWR
Texas Instruments
-
74CBTLV3257GUX
Nexperia USA Inc.
-
74HC154BQ,118
Nexperia USA Inc.
-
P3S0200GMX
NXP USA Inc.
-
SN74CB3Q3245PWR
Texas Instruments
-
SN74CB3Q3257RGYR
Texas Instruments
-
TCA9543APWR
Texas Instruments
-
TCA9546APWR
Texas Instruments
-
SN74HC138N
Texas Instruments
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