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onsemi MC74ACT241DWG
- Part No.:
- MC74ACT241DWG
- Manufacturer:
- onsemi
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC74ACT241DWG.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,722
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Product details
Overview
MC74ACT241DWG from onsemi is an octal 3-state buffer/line driver with dual independent output-enable controls (OE1, OE2), TTL-compatible inputs, ±24 mA output drive capability, and SOIC-20W (Case 751D) packaging - used in memory address buffering, clock distribution, and bidirectional bus interfacing for industrial control and embedded computing systems.
For engineers reviewing the MC74ACT241DWG datasheet, pinout, applications, or equivalent options, key selection criteria include dual 4-bit channel isolation, guaranteed 5.0 V operation across −40°C to +85°C, 3-state leakage < ±5.0 µA, propagation delays ≤10.0 ns, and Pb-free SOIC-20W package compliance with JEDEC MS-013.
Technical Context
The MC74ACT241DWG implements two independent 4-bit non-inverting buffer groups (DA1–DA4 → YB1–YB4 and DB1–DB4 → YA1–YA4), each controlled by separate 3-state enable inputs (OE1 and OE2). Each output supports high-impedance tri-state operation with defined VOL ≤ 0.44 V at IOL = 24 mA and VOH ≥ 4.4 V at IOH = −24 mA under 4.5–5.5 V supply.
It operates within a 4.5–5.5 V DC supply range, features input thresholds VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 5.5 V, and guarantees AC performance including tPLH/tPHL ≤ 10.0 ns and tPZH/tPHZ ≤ 11.5 ns (CL = 50 pF, TA = −40°C to +85°C), making it suitable for synchronous bus timing in legacy TTL- and CMOS-interfaced systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V logic rails and tolerance against supply ripple. |
| Output Drive | ±24 mA - supports direct driving of multiple TTL loads or termination-matched transmission lines. |
| Propagation Delay | ≤10.0 ns - enables reliable operation in 50+ MHz bus cycles with margin for setup/hold timing. |
| 3-State Leakage | ±5.0 µA - minimizes bus contention current when outputs are disabled. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - provides robust noise immunity and interoperability with TTL and ACT-family inputs. |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade deployment without derating. |
| Package | SOIC-20W (Case 751D) - surface-mount footprint with 12.8 mm × 7.5 mm body and 1.27 mm pitch for automated assembly. |
Pinout & Package
MC74ACT241DWG is housed in a 20-lead SOIC wide-body (SOIC-20W) package per Case 751D, with 1.27 mm lead pitch, gull-wing leads, and Pb-free finish (G suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 9 | Data Inputs (DB1–DB4, DA1–DA4) | Two independent 4-bit input banks accepting TTL/CMOS logic levels; electrically isolated between banks. |
| 12, 14, 16, 18 | Outputs (YA1–YA4) | Non-inverting buffered outputs for DBx inputs; enabled/disabled by OE2. |
| 11, 13, 15, 17 | Outputs (YB1–YB4) | Non-inverting buffered outputs for DAx inputs; enabled/disabled by OE1. |
| 8, 19 | GND / VCC | Power reference and supply pins; decoupling required at both ends of the package for noise suppression. |
| 10, 20 | OE1 / OE2 | Active-low 3-state enable controls - each independently disables one 4-bit output bank into high-impedance state. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state enables | OE1 and OE2 allow selective disabling of YB and YA banks - enabling time-multiplexed bus sharing or direction-controlled data routing. |
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 5.5 V - eliminates need for level-shifting when interfacing with legacy 5 V TTL logic. |
| High-output drive strength | ±24 mA sink/source per output - drives up to 10 LSTTL loads or sustains signal integrity over 10 cm PCB traces at 50 MHz. |
| Pb-free SOIC-20W package | RoHS-compliant, JEDEC-standard SOIC-20W (Case 751D) - compatible with reflow profiles per J-STD-020 and IPC-A-610 Class 2. |
Applications
| Memory Address Buffering | Clock Distribution Network |
|---|---|
Use Scenario: Driving 16-bit address bus from microcontroller to SRAM or EPROM in industrial PLC backplane. IC Role / Device Role / Timing Role: Non-inverting octal buffer isolating CPU address outputs while providing fanout and noise margin. Use Value: Dual OE control allows dynamic partitioning of address space - e.g., OE1 active for program memory, OE2 active for data memory - reducing bus contention. | Use Scenario: Distributing system clock to multiple peripheral ICs (UART, ADC, GPIO expanders) on a single-layer control board. IC Role / Device Role / Timing Role: Low-skew, high-drive clock repeater with 3-state capability for clock gating during sleep modes. Use Value: ≤10 ns propagation delay and matched tPLH/tPHL ensure <1 ns skew across all eight outputs - preserving setup/hold timing margins. |
| Legacy Bus Transceiver Interface | Industrial I/O Expansion |
Use Scenario: Interfacing ISA-bus-compatible FPGA logic to 5 V peripheral cards in test equipment rack. IC Role / Device Role / Timing Role: Bidirectional bus driver translating between FPGA I/O and legacy ISA data/address lines. Use Value: Independent OE1/OE2 permits simultaneous control of read/write directions on split 8-bit segments - eliminating external direction logic. | Use Scenario: Expanding digital I/O count for programmable logic controller (PLC) base unit using discrete sensors and actuators. IC Role / Device Role / Timing Role: Input latch and output driver stage for opto-isolated field I/O modules. Use Value: −40°C to +85°C rating and ±24 mA drive support direct connection to 24 VDC industrial sensors without external buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT241N | Dual OE inputs; same AC/DC specs; PDIP-20 package (not surface-mount) | Lacks SOIC-20W thermal and mounting compatibility; higher parasitic inductance limits >25 MHz use | Select when through-hole prototyping or legacy DIP socket reuse is required. |
| MC74AC241DWG | Same pinout and function but AC-series: lower drive (±24 mA still met), higher ICC (up to 80 µA vs 8.0 µA), no guaranteed 5.5 V max rating | Not rated for 5.5 V operation; less noise margin at VCC = 5.5 V; unsuitable for mixed-voltage 5 V/5.5 V systems | Select only if cost sensitivity outweighs 5.5 V margin and quiescent current requirements. |
Compared with SN74ACT241N and MC74AC241DWG, the MC74ACT241DWG uniquely combines SOIC-20W surface-mount reliability, full 4.5–5.5 V operation, and lowest ICC (8.0 µA typical), making it optimal for space-constrained industrial controllers requiring long-term voltage stability and low power standby.
Availability
MC74ACT241DWG is available at Aetrix Electronics and suitable for memory address buffering, clock distribution networks, and industrial I/O expansion requiring stable component supply, long-lifecycle availability, and RoHS-compliant manufacturing.
Supply support for MC74ACT241DWG 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74ACT241DWG belongs to onsemi's Advanced CMOS Logic (ACT) family - engineered for high-speed, low-power 5 V logic interfacing with TTL compatibility and industrial temperature resilience.
FAQ
What is the maximum supply voltage rating for MC74ACT241DWG?
The MC74ACT241DWG has an absolute maximum DC supply voltage (VCC) rating of +6.5 V, but its recommended operating range is strictly 4.5 V to 5.5 V. Operation above 5.5 V may cause parametric degradation or reduced reliability, and is not guaranteed per the datasheet's Recommended Operating Conditions table. The MC74ACT241DWG must be powered within 4.5–5.5 V for full specification compliance.
Does MC74ACT241DWG support hot-swap or live-insertion?
No, the MC74ACT241DWG does not support hot-swap or live-insertion. Its absolute maximum ratings specify that VCC must be applied before any input signals, and inputs must remain within −0.5 V to VCC + 0.5 V at all times. Applying inputs before VCC or exceeding these voltage limits risks latch-up or permanent damage. The MC74ACT241DWG requires power sequencing control in systems where dynamic insertion is needed.
What is the purpose of the two separate output-enable pins (OE1 and OE2) on MC74ACT241DWG?
The MC74ACT241DWG uses OE1 to control the YB1–YB4 outputs (driven by DA1–DA4 inputs) and OE2 to control the YA1–YA4 outputs (driven by DB1–DB4 inputs). This dual-enable architecture allows independent 3-state control of two 4-bit data paths - enabling time-division multiplexing, directional bus control, or selective channel isolation without external logic. Each OE pin functions as an active-low enable for its respective output group.
Is MC74ACT241DWG pin-compatible with MC74ACT244DWG?
No, the MC74ACT241DWG is not pin-compatible with MC74ACT244DWG. Although both are octal buffers in SOIC-20W packages, their pinouts differ: MC74ACT241DWG has dual OE inputs (pins 10 and 20) and split input/output grouping, while MC74ACT244DWG uses a single OE (pin 1) and different terminal assignments. PCB layout and firmware initialization must be redesigned when substituting between them. The MC74ACT241DWG requires dedicated OE handling per bank.
What is the typical power dissipation of MC74ACT241DWG under full-load switching conditions?
Under CL = 50 pF, f = 10 MHz, and VCC = 5.0 V, the MC74ACT241DWG exhibits a typical power dissipation of ~35 mW, derived from CPD = 45 pF and ICC quiescent current of 8.0 µA. Dynamic power dominates at higher frequencies, scaling linearly with frequency and load capacitance. The MC74ACT241DWG's low CPD and ICC make it suitable for low-power industrial systems where thermal management is constrained.
MC74ACT241DWG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ACT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
MC74ACT241DWG FAQ
1.How can I place an order for MC74ACT241DWG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74ACT241DWG 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 MC74ACT241DWG reliable?
The price and inventory of MC74ACT241DWG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74ACT241DWG is usually 5 days.
3.What payment methods are accepted for MC74ACT241DWG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74ACT241DWG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74ACT241DWG?
MC74ACT241DWG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74ACT241DWG 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 MC74ACT241DWG?
For technical support, including MC74ACT241DWG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74ACT241DWG requirements.
6.How does Aetrix verify that MC74ACT241DWG is sourced from the original manufacturer or authorized distributors?
All MC74ACT241DWG 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 MC74ACT241DWG meets industry standards.
7.What is the process for return or replacement of MC74ACT241DWG?
All MC74ACT241DWG units undergo pre-shipment inspection (PSI). If there is an issue with MC74ACT241DWG, 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 MC74ACT241DWG part is unused and in its original packaging.
Return procedure for MC74ACT241DWG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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