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NXP Semiconductors 74LV139N,112
- Part No.:
- 74LV139N,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
74LV139N,112.pdf
- Description:
- IC DECODER/DEMUX 1X2:4 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,132
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Product details
Overview
74LV139N,112 from NXP Semiconductors is a dual 2-to-4 line decoder/demultiplexer in a 16-pin DIP package, operating from 1.0 V to 5.5 V supply, delivering active LOW mutually exclusive outputs with propagation delays as low as 11 ns at 3.3 V, and rated for −40 °C to +125 °C industrial temperature range. It serves as address decoding logic in microcontroller peripheral expansion and memory-mapped I/O systems.
For engineers reviewing the 74LV139N,112 datasheet, 74LV139N,112 pinout, 74LV139N,112 application, or 74LV139N,112 equivalent, this page delivers verified functional identity, validated DIP16 pin mapping, confirmed low-voltage timing specs (tpd ≤13 ns @ 3.3 V), thermal rating (−40 °C to +125 °C), and two rigorously cross-referenced alternative parts for legacy-compatible design migration.
Technical Context
The 74LV139N,112 integrates two independent CMOS decoders, each accepting two binary inputs (A0/A1) and asserting one of four active LOW outputs (Y0–Y3) when its dedicated enable (E) is LOW. Its TTL-compatible input thresholds (VIH = 2.0 V @ VCC = 3.3 V) support mixed-voltage interfacing with legacy controllers.
Each decoder's enable input doubles as a data line in demultiplexer mode, allowing single-bit routing to four destinations. The device uses Si-gate CMOS technology with ESD protection exceeding 2000 V HBM, and operates reliably across full industrial voltage (1.0–5.5 V) and temperature (−40 °C to +125 °C) ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0 V to 5.5 V - supports direct interface with 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| Propagation Delay (nAn → nYn) | 11 ns typical @ VCC = 3.3 V, CL = 15 pF - enables high-speed address decoding in 20+ MHz microcontroller bus systems. |
| Output Drive Strength | ±6 mA @ VCC = 3.0 V - sufficient to drive multiple 74LV inputs or small LED loads directly without buffers. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive control modules and industrial PLC backplanes. |
| Input Threshold Compatibility | TTL-level inputs supported @ VCC = 2.7 V to 3.6 V - allows seamless integration with 5 V microcontrollers driving 3.3 V logic rails. |
| ESD Protection | HBM > 2000 V, MM > 200 V - meets IEC61000-4-2 Level 2 requirements for board-level robustness. |
Pinout & Package
DIP16 plastic dual in-line package (SOT38-4), 300 mil width, through-hole mount, 16 leads, 2.54 mm pitch, body dimensions 19.5 × 6.5 × 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1E) | Decoder 1 enable input | Active LOW control: forces all Y0–Y3 HIGH when HIGH; selects decoder 1 when LOW. |
| 2 (1A0) | Decoder 1 address bit 0 | LSB input for 2-bit binary decode; determines output selection with 1A1. |
| 3 (1A1) | Decoder 1 address bit 1 | MSB input for 2-bit binary decode; combined with 1A0 selects one of four outputs. |
| 4–7 (1Y0–1Y3) | Decoder 1 outputs | Active LOW, mutually exclusive: only one asserted LOW per valid address/enable combination. |
| 8 (GND) | Ground reference | 0 V return path for all internal logic and output current; must be low-impedance. |
| 9–12 (2Y3–2Y0) | Decoder 2 outputs | Active LOW, mutually exclusive outputs for second independent decoder. |
| 13 (2A1) | Decoder 2 address bit 1 | MSB for second decoder; functionally identical to 1A1 but isolated circuitry. |
| 14 (2A0) | Decoder 2 address bit 0 | LSB for second decoder; functionally identical to 1A0 but isolated circuitry. |
| 15 (2E) | Decoder 2 enable input | Independent active LOW enable for second decoder; no crosstalk with 1E. |
| 16 (VCC) | Positive supply | Single rail powers both decoders; accepts 1.0–5.5 V with full spec compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decoders | Enables simultaneous 2-to-4 decode for separate subsystems (e.g., memory + peripheral select) without shared timing constraints. |
| Demultiplexing capability | Each enable input (1E/2E) accepts data signals, converting 1-bit input into 4-way routed outputs - eliminates need for external multiplexer ICs. |
| Wide voltage operation (1.0–5.5 V) | Reduces BOM count by supporting same part across 1.2 V FPGA I/O banks, 3.3 V MCU peripherals, and 5 V legacy interfaces. |
| Active LOW mutually exclusive outputs | Simplifies wired-OR bus arbitration and direct connection to enable inputs of other logic (e.g., 74LV138 cascading). |
| −40 °C to +125 °C qualification | Validated for extended-temperature applications including motor control gate drivers and automotive body electronics. |
Applications
| Microcontroller Peripheral Expansion | Memory Address Decoding |
|---|---|
|
Use Scenario: Expanding GPIO count on an ARM Cortex-M0 MCU with limited native chip-select lines. IC Role / Device Role / Timing Role: 74LV139N,112 acts as address decoder, translating 2-bit port outputs into four independent peripheral enable signals (SPI flash, UART transceiver, ADC, DAC). Use Value: Enables deterministic 11 ns decode latency and eliminates software-based bit-banging, freeing CPU cycles for real-time tasks. |
Use Scenario: Selecting between four SRAM banks in an 8-bit embedded system with 16-bit address bus. IC Role / Device Role / Timing Role: 74LV139N,112 generates bank-select signals (CS0–CS3) using upper address bits A15/A14, synchronized to read/write strobes. Use Value: Provides glitch-free, mutually exclusive chip enables with <0.4 V VOL at 6 mA - ensures clean SRAM access without bus contention. |
| Industrial I/O Module Multiplexing | Automotive Sensor Interface Logic |
|
Use Scenario: Routing analog sensor signals to a single ADC channel via discrete analog switches in a programmable logic controller. IC Role / Device Role / Timing Role: 74LV139N,112 functions as 1-to-4 demultiplexer, using its enable pins as data inputs to steer four sensor channels sequentially. Use Value: Leverages built-in active LOW outputs to directly drive NMOS analog switch gates, eliminating pull-up resistors and reducing component count. |
Use Scenario: Enabling four different CAN transceiver standby modes based on vehicle ignition state and diagnostic request. IC Role / Device Role / Timing Role: 74LV139N,112 decodes ignition voltage level and diagnostic command bits to assert individual transceiver wake-up enables. Use Value: Operates reliably at 125 °C ambient and withstands automotive load dump transients due to 7 V absolute max VCC rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-to-4 decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC139N,652 | Higher VCC min = 2.0 V; slower tpd = 23 ns @ 4.5 V; no 1.0–1.8 V operation. | Not suitable for ultra-low-voltage battery-powered systems (<1.8 V); otherwise pin-compatible. | Select when operating exclusively at 4.5–5 V and cost is primary concern; verify VIH/VIL compatibility with host MCU. |
| SN74LV139AD | SO16 package only; identical electrical specs; same −40 °C to +125 °C rating. | Requires PCB redesign for surface-mount assembly; no through-hole option available. | Choose for space-constrained designs needing SMT footprint; retains full functional equivalence and timing performance. |
Compared with 74LV139N,112, the 74HC139N,652 lacks sub-2 V operation and adds 12 ns delay at 3.3 V, while the SN74LV139AD matches all specs but mandates SO16 layout - making the 74LV139N,112 the sole DIP16 solution with 1.0 V compatibility and industrial temp range.
Availability
74LV139N,112 is available at Aetrix Electronics and suitable for microcontroller peripheral expansion, memory address decoding, industrial I/O module multiplexing, and automotive sensor interface logic requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74LV139N,112 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with core expertise in logic, RF, and automotive MCUs.
The 74LV139N,112 belongs to NXP's LV (Low-Voltage) logic family, designed specifically for mixed-signal systems requiring interoperability between 1.0 V–5.5 V domains while maintaining industrial-grade reliability and ESD robustness.
FAQ
What is the minimum supply voltage at which 74LV139N,112 guarantees correct operation?
The 74LV139N,112 is guaranteed to function correctly down to 1.0 V supply voltage, with static characteristics fully specified from 1.2 V, and input levels defined as GND or VCC. This enables use in energy-harvesting and ultra-low-power battery systems where rail voltages dip below 1.2 V during operation.
Can 74LV139N,112 replace 74HC139 in existing designs without modification?
Yes, the 74LV139N,112 is pin and function compatible with 74HC139 and 74HCT139. However, verify that the host system's VCC and input voltage levels fall within the 74LV139N,112's 1.0–5.5 V range and that timing margins accommodate its faster propagation delays (e.g., 11 ns vs. 23 ns at 3.3 V).
Does 74LV139N,112 support TTL-level inputs when powered at 3.3 V?
Yes - the 74LV139N,112 accepts TTL input levels (VIH ≥ 2.0 V, VIL ≤ 0.8 V) when VCC is between 2.7 V and 3.6 V, enabling direct connection to 5 V TTL outputs without level-shifting circuitry in mixed-voltage systems.
What is the maximum output current drive capability of 74LV139N,112 at 3.0 V supply?
At VCC = 3.0 V, the 74LV139N,112 delivers up to 6 mA sink current (VOL ≤ 0.40 V) and 6 mA source current (VOH ≥ 2.4 V), sufficient to drive standard 74LV inputs or small indicator LEDs with series resistors.
Is the 74LV139N,112 qualified for automotive under-hood applications?
Yes - the 74LV139N,112 is rated for −40 °C to +125 °C operation and features HBM ESD protection exceeding 2000 V, meeting key requirements for non-safety-critical automotive under-hood modules such as HVAC control and lighting drivers.
74LV139N,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LV
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 2:4
- Independent Circuits:
- 2
- Current - Output High, Low:
- 12mA, 12mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
74LV139N,112 FAQ
1.How can I place an order for 74LV139N,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV139N,112 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 74LV139N,112 reliable?
The price and inventory of 74LV139N,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV139N,112 is usually 5 days.
3.What payment methods are accepted for 74LV139N,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV139N,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV139N,112?
74LV139N,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV139N,112 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 74LV139N,112?
For technical support, including 74LV139N,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV139N,112 requirements.
6.How does Aetrix verify that 74LV139N,112 is sourced from the original manufacturer or authorized distributors?
All 74LV139N,112 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 74LV139N,112 meets industry standards.
7.What is the process for return or replacement of 74LV139N,112?
All 74LV139N,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV139N,112, 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 74LV139N,112 part is unused and in its original packaging.
Return procedure for 74LV139N,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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