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Renesas 74HC139FPEL-E
- Part No.:
- 74HC139FPEL-E
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
74HC139FPEL-E.pdf
- Description:
- DUAL 2-TO-4 LINE DECODER/DEMULTI
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
74HC139FPEL-E from Renesas is a dual 2-to-4-line decoder/demultiplexer in SOP-16 package, operating from 2 V to 6 V supply, with 14 ns typical propagation delay (A/B to Y, CL = 50 pF), ±25 mA output drive, and active-low enable inputs per section. It routes binary-select logic to four independent low-active outputs per decoder, used in address decoding for memory expansion and peripheral selection in microcontroller systems.
For engineers reviewing the 74HC139FPEL-E datasheet, 74HC139FPEL-E pinout, 74HC139FPEL-E application, or 74HC139FPEL-E equivalent, this device supports high fanout (10 LSTTL loads), low quiescent current (4 µA max), and industrial temperature range (–40°C to +85°C) - critical for reliable logic-level signal routing in embedded control and digital interface subsystems.
Technical Context
The 74HC139FPEL-E implements two independent CMOS decoder blocks, each accepting two binary select inputs (A, B) and one active-low enable (G) to assert exactly one of four complementary outputs (Y0–Y3) low. Each decoder operates asynchronously with no internal latching or clocking.
All inputs tolerate voltages up to VCC + 0.5 V; outputs are fully buffered with symmetrical rise/fall times (13 ns typ at VCC = 6 V, CL = 50 pF) and specified VOL ≤ 0.33 V at IOL = 4 mA, ensuring robust noise margin in mixed-voltage 3.3 V/5 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 6 V - supports direct interfacing with both 3.3 V and 5 V logic families without level shifters. |
| Propagation Delay | 14 ns typ (A/B → Y, CL = 50 pF, VCC = 4.5 V) - enables use in sub-50 MHz address decode paths. |
| Output Drive | ±25 mA per output - sufficient to directly drive LEDs, small relays, or multiple TTL inputs. |
| Quiescent Current | 4 µA max (Ta = 25°C) - suitable for battery-backed or low-power standby modes. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded control environments. |
| Input Thresholds | VIH = 3.15 V min, VIL = 1.35 V max (VCC = 4.5 V) - provides >1.1 V noise margin under nominal conditions. |
| Enable Propagation | 5 ns typ (G → Y, VCC = 4.5 V) - allows fast gating of decoder outputs during bus arbitration. |
Pinout & Package
SOP-16 (JEITA standard PRSP0016DH-B, FP-16DAV), 1.27 mm pitch, 5.5 mm × 10.06 mm body, gull-wing leads, Ni/Pd/Au plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1G | Active-low enable for Decoder 1 - must be low for 1A/1B to affect 1Y0–1Y3. |
| 2 | 1A | LSB select input for Decoder 1 - determines Y0/Y1 vs Y2/Y3 group activation. |
| 3 | 1B | MSB select input for Decoder 1 - combined with 1A, selects one of four outputs. |
| 4–7 | 1Y0–1Y3 | Active-low decoded outputs for Decoder 1 - only one low at a time when enabled. |
| 8 | GND | Ground reference for all logic and output stages - requires low-impedance connection. |
| 9 | VCC | Positive supply rail - bypass with 0.1 µF ceramic capacitor near pin for noise suppression. |
| 10 | 2G | Active-low enable for Decoder 2 - independent control from Decoder 1. |
| 11–12 | 2A, 2B | Select inputs for Decoder 2 - functionally identical to 1A/1B but electrically isolated. |
| 13–16 | 2Y0–2Y3 | Active-low decoded outputs for Decoder 2 - no crosstalk with Decoder 1 outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decoders | Enables simultaneous address decoding for two memory banks or peripheral groups without shared timing constraints. |
| Wide VCC range (2–6 V) | Eliminates need for separate voltage translators when interfacing 3.3 V MCUs with 5 V peripherals. |
| Low input current (1 µA max) | Reduces loading on upstream drivers - critical for fanout-limited microcontroller GPIO pins. |
| High-speed enable path (5 ns typ) | Supports dynamic output blanking during bus contention or power sequencing transitions. |
| Guaranteed monotonic output transition | Prevents glitch-induced false triggering in safety-critical enable/disable sequences. |
Applications
| Memory Address Decoding | Peripheral Select Logic |
|---|---|
|
Use Scenario: Expanding 16-bit address space to select among four 8 KB SRAM chips in an 8051-based system. IC Role / Device Role / Timing Role: Dual decoder maps A14–A15 to chip-select lines, enabling one memory bank at a time while holding others inactive. Use Value: Reduces external logic count by replacing discrete NAND gates; ensures mutually exclusive chip selection with <14 ns decode latency. |
Use Scenario: Routing UART, SPI, and I²C signals to one of four sensor modules via shared bus lines. IC Role / Device Role / Timing Role: Acts as bus multiplexer controller - select inputs choose target module, enable pins gate data direction and clock enables. Use Value: Enables single MCU to manage multiple identical sensors without dedicated GPIO per device; supports hot-swap detection via enable control. |
| LED Segment Driver Enable | Industrial I/O Expansion |
|
Use Scenario: Driving common-anode 7-segment displays where each digit shares segment lines but requires individual digit-enable control. IC Role / Device Role / Timing Role: Converts 2-bit digit address into active-low digit-select pulses, synchronized with segment data updates. Use Value: Allows multiplexed display refresh at >200 Hz with minimal MCU overhead; output drive handles 20 mA per segment without external transistors. |
Use Scenario: Adding eight discrete digital inputs/outputs to a PLC base unit using two 74HC139FPEL-E devices and 74HC595 shift registers. IC Role / Device Role / Timing Role: Provides address decoding for I/O register selection - each decoder enables one 8-bit port latch or status register. Use Value: Supports deterministic read/write timing with <30 ns worst-case enable-to-output delay; meets IEC 61131-2 response requirements for discrete I/O. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-to-4-line decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC139DR | Same logic function, SOP-16 package, but TI-specified VCC = 2–6 V, tPD = 17 ns typ (CL = 50 pF), ICC = 8 µA max. | Higher quiescent current and slightly slower propagation - acceptable where power budget >10 µA and timing slack ≥3 ns exists. | Preferred for TI-centric BOMs or where cross-manufacturer qualification is required. |
| MC74HC139ADTR2G | ON Semiconductor variant; identical pinout and DC specs, but tPD = 15 ns typ (CL = 50 pF), ICC = 2 µA max at Ta = 25°C. | Lower static current enables tighter battery-life budgets; same timing performance makes it drop-in for most 74HC139FPEL-E designs. | Recommended when ultra-low standby current is prioritized and ON Semi sourcing is preferred. |
Compared with SN74HC139DR and MC74HC139ADTR2G, the 74HC139FPEL-E offers the fastest propagation (14 ns typ), lowest published ICC (4 µA max), and Renesas-specific JEITA-compliant SOP footprint - making it optimal for timing-critical, low-power industrial controllers requiring long-term supply stability.
Availability
74HC139FPEL-E is available at Aetrix Electronics and suitable for memory address decoding, peripheral select logic, LED multiplexing, and industrial I/O expansion requiring stable component supply across automotive-tier production cycles and extended-life embedded programs.
Supply support for 74HC139FPEL-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 is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HD74HC139 product line delivers standardized high-speed CMOS logic for address decoding, signal routing, and bus management in resource-constrained embedded systems - designed for interoperability with legacy TTL and modern low-voltage MCUs.
FAQ
What is the maximum output sink current specification for the 74HC139FPEL-E?
The 74HC139FPEL-E guarantees ±25 mA DC output current per pin under absolute maximum ratings, with electrical characteristics specifying VOL ≤ 0.33 V at IOL = 4 mA (VCC = 4.5 V, Ta = –40°C to +85°C). This ensures reliable driving of standard LEDs or TTL inputs without external buffers.
Does the 74HC139FPEL-E support mixed-voltage operation between 3.3 V and 5 V domains?
Yes, the 74HC139FPEL-E operates from 2 V to 6 V and features input thresholds (VIH = 3.15 V min at VCC = 4.5 V) and output levels compatible with both 3.3 V and 5 V logic families. Its wide VCC range eliminates level-shifting components when interfacing with mixed-supply systems.
Can the two decoders in the 74HC139FPEL-E operate independently with different enable signals?
Yes - the 74HC139FPEL-E contains two fully independent decoders: 1G/1A/1B/1Y0–1Y3 and 2G/2A/2B/2Y0–2Y3. Each has its own active-low enable (1G, 2G), allowing asynchronous activation, staggered timing, or selective disabling without affecting the other decoder's state or outputs.
What is the guaranteed propagation delay from enable input to output for the 74HC139FPEL-E?
The 74HC139FPEL-E specifies tPHL/tPLH = 5 ns typical (max 15 ns) from G to any Y output at VCC = 4.5 V and CL = 50 pF. This fast enable path supports dynamic output gating in real-time bus arbitration and power-gated subsystem control.
Is the 74HC139FPEL-E pin-compatible with through-hole DIP-16 versions of the same family?
No - the 74HC139FPEL-E uses SOP-16 (JEITA PRSP0016DH-B) with 1.27 mm pitch and gull-wing leads, whereas the HD74HC139P uses DIP-16 (PRDP0016AE-B) with 2.54 mm pitch and through-hole pins. They share identical logic function and pin numbering but differ mechanically and thermally; PCB layout is not interchangeable.
74HC139FPEL-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74HC
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 2:4
- Independent Circuits:
- 2
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74HC139FPEL-E FAQ
1.How can I place an order for 74HC139FPEL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC139FPEL-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 74HC139FPEL-E reliable?
The price and inventory of 74HC139FPEL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC139FPEL-E is usually 5 days.
3.What payment methods are accepted for 74HC139FPEL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC139FPEL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC139FPEL-E?
74HC139FPEL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC139FPEL-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 74HC139FPEL-E?
For technical support, including 74HC139FPEL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC139FPEL-E requirements.
6.How does Aetrix verify that 74HC139FPEL-E is sourced from the original manufacturer or authorized distributors?
All 74HC139FPEL-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 74HC139FPEL-E meets industry standards.
7.What is the process for return or replacement of 74HC139FPEL-E?
All 74HC139FPEL-E units undergo pre-shipment inspection (PSI). If there is an issue with 74HC139FPEL-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 74HC139FPEL-E part is unused and in its original packaging.
Return procedure for 74HC139FPEL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC139FPEL-E Tags
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TCA9543APWR
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TCA9546APWR
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