My Inquiry
My Account
Renesas 74ACT125FPEL-E
- Part No.:
- 74ACT125FPEL-E
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
74ACT125FPEL-E.pdf
- Description:
- QUAD BUFFER/LINE DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:1,741
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ACT125FPEL-E from Renesas Electronics is a quad 3-state buffer/line driver IC designed for bus-oriented transmission, memory address driving, and clock distribution in high-density PCB layouts. It features TTL-compatible inputs, ±24 mA output drive capability, 5.0 V supply operation, propagation delay ≤10.0 ns at CL = 50 pF, and operates across –40°C to +85°C.
For engineers reviewing the 74ACT125FPEL-E datasheet, 74ACT125FPEL-E pinout, 74ACT125FPEL-E application, or 74ACT125FPEL-E equivalent, this device serves as a logic-level translation and bus isolation component in industrial control backplanes, legacy microprocessor data buses, and programmable logic interface circuits where low skew and controlled output enable timing are critical.
Technical Context
The 74ACT125FPEL-E implements four independent non-inverting buffers, each with active-low 3-state enable (E) controlling output impedance. Its TTL-compatible inputs accept VIL ≤ 0.8 V and VIH ≥ 2.0 V at VCC = 4.5–5.5 V, enabling direct interfacing with standard TTL logic families without level-shifting circuitry.
Each channel delivers VOH ≥ 4.80 V and VOL ≤ 0.37 V under IOL/IOH = ±24 mA loads at VCC = 5.5 V, supporting robust noise margins in noisy industrial environments. Enable/disable timing (tZH/tZL/tHZ/tLZ) is specified down to 1.0 ns minimum, ensuring precise bus arbitration control in synchronous systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad non-inverting buffer with individual active-low 3-state enable per channel |
| Supply Voltage | 2.0–6.0 V - supports 3.3 V and 5.0 V system rails with guaranteed AC/DC performance |
| Output Drive | ±24 mA - sufficient to drive 50-pF loads and multiple CMOS/TTL inputs on shared buses |
| Propagation Delay | ≤10.0 ns at VCC = 5.0 V, CL = 50 pF - enables reliable operation in 50 MHz+ bus cycles |
| Input Compatibility | TTL-compatible - VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 5.5 V - eliminates need for external level shifters |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and instrumentation applications |
| Quiescent Current | ≤80 µA - minimal static power draw during 3-state hold or standby modes |
Pinout & Package
SOP-14 pin package (JEITA FP-14DAV), 5.5 mm × 10.06 mm body, 1.27 mm pitch, Ni/Pd/Au-plated leads, lead-free compliant (V suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | Data Input (D) | Non-inverting input per buffer channel; accepts TTL-compatible logic levels |
| 2, 5, 11, 14 | 3-State Enable (E) | Active-low control; pulls output to high-impedance when high |
| 3, 6, 12, 9 | Output (O) | Buffered, non-inverted signal; drives bus or register inputs with ±24 mA capability |
| 7 | GND | Ground reference for all logic and output stages; must be low-impedance connection |
| 14 | VCC | Positive supply rail; decoupling capacitor required within 1 cm of pin for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| 3-State Output Control | Independent active-low enable per channel allows dynamic bus sharing without contention |
| TTL-Compatible Inputs | Eliminates external level translators when interfacing with legacy 5 V TTL systems |
| High Sink/Source Drive | ±24 mA output current supports fan-out to ≥10 LS-TTL loads or 20+ CMOS inputs |
| Low Propagation Skew | Matched tPLH/tPHL ensures <1 ns inter-channel timing mismatch for synchronized bus drivers |
| Industrial Temperature Range | –40°C to +85°C operation verified per JEDEC JESD22-A108, suitable for factory automation hardware |
Applications
| Industrial Backplane Bus Driver | Legacy Microprocessor Address Buffer |
|---|---|
Use Scenario: Driving multiplexed address/data lines in PLC rack-mounted I/O modules with shared 5 V bus architecture. IC Role / Device Role / Timing Role: Isolates CPU address outputs from noisy field-side peripherals while maintaining tight setup/hold timing. Use Value: Prevents bus contention during hot-swap events via fast disable time (tLZ ≤ 10.5 ns) and guarantees signal integrity over 20 cm traces. | Use Scenario: Buffering Z80 or 8086 address lines to memory and peripheral chips in retro-computing or test equipment designs. IC Role / Device Role / Timing Role: Acts as a non-inverting repeater with 3-state control to support memory-mapped I/O decoding. Use Value: TTL-compatible inputs accept original processor outputs directly; ±24 mA drive sustains signal integrity across dense board layouts. |
| Programmable Logic Interface | Industrial Clock Distribution |
Use Scenario: Interfacing FPGA I/O banks to 5 V external logic in motor control gate driver boards. IC Role / Device Role / Timing Role: Level-translating and bus-isolating buffer between 3.3 V FPGA and 5 V discrete logic subsystems. Use Value: Eliminates need for discrete MOSFET translators; 10 ns max delay preserves timing closure in 50 MHz control loops. | Use Scenario: Distributing a master system clock to multiple ADCs, DACs, and digital isolators in data acquisition systems. IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer with enable-controlled gating for power-managed subsystems. Use Value: Matches rise/fall times across channels (<1 ns skew), minimizing jitter accumulation in multi-channel sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT125DR | TI part in SOIC-14; identical AC/DC specs but different thermal resistance (θJA = 120°C/W vs. Renesas' 140°C/W) | Same industrial temperature range and pinout; validated for automotive AEC-Q100 Grade 3 by TI | Select for automotive-qualified supply chains or tighter thermal management requirements |
| 74VHC125M | ON Semiconductor part; higher VCC range (2–5.5 V), lower drive (±8 mA), slower max delay (11.5 ns) | Optimized for low-power 3.3 V systems; not TTL-compatible - requires level-shifting for 5 V interfaces | Select only for 3.3 V-only designs where power efficiency outweighs drive strength and compatibility |
Compared with SN74ACT125DR and 74VHC125M, the 74ACT125FPEL-E provides superior 5 V bus drive and native TTL compatibility without added components, making it optimal for legacy industrial upgrades where signal integrity and drop-in replacement are prioritized over ultra-low power or automotive qualification.
Availability
74ACT125FPEL-E is available at Aetrix Electronics and suitable for industrial backplane bus drivers, legacy microprocessor address buffering, and programmable logic interface circuits requiring stable component supply and long-term lifecycle support.
Supply support for 74ACT125FPEL-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, power, and logic devices for industrial, automotive, and infrastructure markets.
The HD74ACT125 product line was developed for high-reliability 5 V logic interfacing in industrial control systems, emphasizing bus isolation, noise immunity, and compatibility with legacy TTL architectures.
FAQ
What is the maximum operating supply voltage for the 74ACT125FPEL-E?
The 74ACT125FPEL-E supports a supply voltage range of 2.0 V to 6.0 V, with absolute maximum rating at 7.0 V. For guaranteed AC and DC performance including propagation delay and output drive, operation at 4.5 V to 5.5 V is recommended per the datasheet's Recommended Operating Conditions table. Exceeding 6.0 V risks permanent damage to internal structures.
Does the 74ACT125FPEL-E support 3.3 V logic inputs?
No - the 74ACT125FPEL-E has TTL-compatible inputs requiring VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 5.5 V, which makes it incompatible with standard 3.3 V CMOS logic thresholds. Direct connection to 3.3 V outputs may result in undefined logic states; level-shifting circuitry is required for interoperability.
What is the thermal resistance (θJA) of the 74ACT125FPEL-E in its SOP-14 package?
The 74ACT125FPEL-E in FP-14DAV (SOP-14) package has a typical junction-to-ambient thermal resistance (θJA) of 140°C/W under standard JEDEC test conditions (1-layer board, 1 in² copper). This value assumes no additional heatsinking and is used to calculate junction temperature rise under sustained load conditions.
Can the 74ACT125FPEL-E be used in place of the 74AC125 variant?
Yes - the 74ACT125FPEL-E is functionally pin-compatible and electrically interchangeable with the 74AC125 family in SOP-14 packaging, but offers TTL-compatible inputs whereas 74AC125 uses CMOS-input thresholds. System validation is required if replacing 74AC125, especially regarding input noise margins and drive strength consistency.
Is the 74ACT125FPEL-E RoHS compliant and lead-free?
Yes - the "V" suffix in the package code FP-14DAV and the "EL" taping designation confirm that the 74ACT125FPEL-E is manufactured with lead-free (Pb-free) terminations and complies with EU RoHS Directive 2011/65/EU. The Ni/Pd/Au plating ensures solderability and corrosion resistance without lead content.
74ACT125FPEL-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74ACT125FPEL-E FAQ
1.How can I place an order for 74ACT125FPEL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ACT125FPEL-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 74ACT125FPEL-E reliable?
The price and inventory of 74ACT125FPEL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT125FPEL-E is usually 5 days.
3.What payment methods are accepted for 74ACT125FPEL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT125FPEL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ACT125FPEL-E?
74ACT125FPEL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ACT125FPEL-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 74ACT125FPEL-E?
For technical support, including 74ACT125FPEL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT125FPEL-E requirements.
6.How does Aetrix verify that 74ACT125FPEL-E is sourced from the original manufacturer or authorized distributors?
All 74ACT125FPEL-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 74ACT125FPEL-E meets industry standards.
7.What is the process for return or replacement of 74ACT125FPEL-E?
All 74ACT125FPEL-E units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT125FPEL-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 74ACT125FPEL-E part is unused and in its original packaging.
Return procedure for 74ACT125FPEL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ACT125FPEL-E Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
