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Nexperia USA Inc. 74HC241PW,118
- Part No.:
- 74HC241PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC241PW,118.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,391
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Product details
Overview
74HC241PW,118 from Nexperia is an octal non-inverting 3-state buffer/line driver in TSSOP20 package, operating from 2.0 V to 6.0 V supply, featuring dual independent output enables (1OE active LOW, 2OE active HIGH), CMOS-level inputs, and −40 °C to +125 °C temperature range. It functions as two 4-bit buffers or one 8-bit bus interface in digital logic systems such as microcontroller I/O expansion and memory address/data buffering.
For engineers reviewing the 74HC241PW,118 datasheet, 74HC241PW,118 pinout, 74HC241PW,118 application, or 74HC241PW,118 equivalent, key selection criteria include dual 3-state control timing (enable/disable times down to 9 ns at VCC = 6.0 V), input clamp diodes enabling overvoltage-tolerant interfacing, and guaranteed high-impedance isolation per output group during disable.
Technical Context
The device implements two independent 4-bit buffered paths: inputs 1A0–1A3 drive outputs 1Y0–1Y3 under control of 1OE (active LOW), while 2A0–2A3 drive 2Y0–2Y3 under 2OE (active HIGH). Each output group enters high-impedance state when its enable signal is inactive, allowing bidirectional bus sharing without contention.
Input clamp diodes permit safe interfacing with voltages exceeding VCC when used with current-limiting resistors. The 74HC241 variant maintains full CMOS input thresholds (VIH ≥ 70% VCC, VIL ≤ 30% VCC), ensuring noise immunity and compatibility with other HC-series logic across the full 2.0–6.0 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 6.0 V - supports mixed-voltage system interfacing and battery-powered operation down to 2 V. |
| Propagation delay | 7 ns typical at VCC = 6.0 V - enables high-speed data transfer in 25 MHz+ synchronous buses. |
| Enable time (ten) | 9 ns typical at VCC = 6.0 V - ensures rapid bus arbitration and minimal dead-time between device ownership transitions. |
| Output drive | ±7.8 mA at VCC = 4.5 V - sufficient to drive 15 pF loads with <30 ns transition times, meeting standard TTL/CMOS fan-out requirements. |
| Input leakage | ±0.1 μA max at 25 °C - minimizes static power draw and prevents unintended logic state shifts in high-impedance nodes. |
| Operating temperature | −40 °C to +125 °C - qualified for industrial and extended-temperature embedded control applications. |
| ESD protection | HBM >2000 V, CDM >1000 V - provides robust handling margin during PCB assembly and field service. |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE (active LOW), 2OE (active HIGH) | Dual independent output enable controls - allows selective activation of two 4-bit output groups without shared timing constraints. |
| 2, 4, 6, 8, 17, 15, 13, 11 | 1A0–1A3, 2A0–2A3 | Eight buffered data inputs - grouped into two sets for parallel bus segmentation or independent peripheral interfacing. |
| 12, 14, 16, 18, 3, 5, 7, 9 | 1Y0–1Y3, 2Y0–2Y3 | Non-inverting 3-state outputs - each pair (e.g., 1Y0–1Y3) enters high-Z simultaneously when its OE is inactive. |
| 10, 20 | GND, VCC | Power supply terminals - decoupling capacitor placement near Pin 10 (GND) and Pin 20 (VCC) required for stable high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state control | Separate 1OE (LOW-enable) and 2OE (HIGH-enable) pins allow asynchronous management of two 4-bit data paths on a shared bus. |
| Input clamp diodes | Enable safe connection to signals up to VCC + 0.5 V using external current-limiting resistors - eliminates need for level-shifting circuitry in mixed-supply systems. |
| Wide supply range | 2.0 V to 6.0 V operation supports direct integration with 3.3 V microcontrollers, 5 V legacy peripherals, and 2.5 V FPGAs without voltage translation. |
| High noise immunity | Typical VIH/VIL margins of 30%/70% VCC ensure reliable operation in electrically noisy industrial environments with >400 mV noise margin at 4.5 V. |
| Latch-up immunity | JESD78 Class II Level B compliance (>100 mA) guarantees robustness against transient current injection during hot-plug or ESD events. |
Applications
| Microcontroller I/O Expansion | Memory Address/Data Buffering |
|---|---|
Use Scenario: Expanding limited GPIO count of an ARM Cortex-M0+ MCU to drive 8-bit parallel LCD or keypad matrix. IC Role / Device Role / Timing Role: Non-inverting buffer isolating MCU pins from capacitive bus loads while enabling/disabling display updates via 1OE/2OE sequencing. Use Value: Eliminates software-controlled tristate delays; enables hardware-synchronized display refresh with sub-10 ns enable timing. | Use Scenario: Isolating 8-bit address lines between an FPGA and multiple SRAM chips on a shared bus. IC Role / Device Role / Timing Role: Bidirectional bus driver with independent enable control per memory bank, preventing address contention during multi-chip access. Use Value: Reduces FPGA pin count by 50% vs. direct routing; supports simultaneous read/write arbitration with deterministic 9 ns enable latency. |
| Industrial PLC Backplane Interface | Digital Test Equipment Signal Conditioning |
Use Scenario: Interfacing isolated sensor input modules to a central controller over a 24 V tolerant backplane. IC Role / Device Role / Timing Role: Level-translating buffer accepting 5 V logic from optocouplers and driving 3.3 V FPGA inputs with clamped overvoltage protection. Use Value: Removes need for discrete Zener clamps; sustains 20 mA input clamp current per pin without degradation across −40 °C to +125 °C. | Use Scenario: Driving calibrated test signals into DUTs with precise edge control and minimal loading. IC Role / Device Role / Timing Role: Low-skew, low-capacitance (3.5 pF input) buffer ensuring <15 ns transition times and <30 ns propagation delay at 6 V supply. Use Value: Maintains signal integrity for 33 MHz pattern generation; CPD = 30 pF enables accurate dynamic power modeling in automated test systems. |
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 |
|---|---|---|---|
| 74HCT241PW,118 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 5 V) vs. CMOS thresholds in 74HC241PW | Required when interfacing with legacy 5 V TTL outputs; not suitable for 2.0–3.3 V only systems | Select when driving from 74LS/74F series or microcontrollers with weak high-drive capability. |
| SN74LVC244APWR | 3.3 V only (1.65–3.6 V), lower propagation delay (5.3 ns typ), higher drive (±24 mA) | Optimized for modern low-voltage FPGAs and SoCs; lacks overvoltage-tolerant inputs | Prefer for 3.3 V-only designs requiring faster timing or higher fan-out; avoid if interfacing >VCC signals. |
Compared with 74HC241PW,118, the 74HCT241PW,118 trades supply flexibility for TTL compatibility, while the SN74LVC244APWR delivers superior speed and drive at the cost of voltage range and input ruggedness - making the 74HC241PW optimal for mixed-supply industrial systems needing overvoltage tolerance and wide temperature operation.
Availability
74HC241PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, microcontroller I/O expansion, memory subsystem buffering, and digital test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC241PW,118 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC241 belongs to Nexperia's HC-series logic family, engineered for low-power, high-noise-immunity digital interfacing in harsh industrial environments where reliability across −40 °C to +125 °C is mandatory.
FAQ
What is the maximum clock frequency supported by the 74HC241PW,118?
The 74HC241PW,118 is not a clocked device but a combinational buffer; it has no internal clock. Its usable data rate is determined by propagation delay (7 ns typical at 6 V) and load capacitance. With 15 pF loads, it reliably supports data edges up to ~35 MHz (1/(2 × tpd)), assuming clean signal integrity and proper termination.
Can 74HC241PW,118 safely interface with 5 V inputs while powered from 3.3 V?
No - the 74HC241PW,118 requires VCC ≥ input voltage for reliable operation. Its inputs lack overvoltage tolerance beyond VCC + 0.5 V (per clamp diode rating), and VIH minimum is 70% of VCC. At 3.3 V supply, 5 V inputs exceed absolute maximum ratings and will cause damage or undefined behavior.
How does the dual output enable architecture improve system design?
The separate 1OE (active LOW) and 2OE (active HIGH) pins allow independent control of two 4-bit output groups. This enables time-multiplexed bus sharing - e.g., one group drives a display while the other handles keypad scanning - without requiring external logic to sequence a single enable signal, reducing PCB complexity and timing uncertainty.
Is thermal derating required for continuous operation at +125 °C?
Yes - total power dissipation must be derated linearly at 10.0 mW/K above +100 °C for the TSSOP20 (SOT360-1) package. At +125 °C, Ptot is reduced from 500 mW to 475 mW. Designers must calculate worst-case dynamic power (using CPD = 30 pF, VCC, and toggle rates) and verify junction temperature remains below 150 °C with appropriate PCB copper area.
74HC241PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74HC241PW,118 FAQ
1.How can I place an order for 74HC241PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC241PW,118 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 74HC241PW,118 reliable?
The price and inventory of 74HC241PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC241PW,118 is usually 5 days.
3.What payment methods are accepted for 74HC241PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC241PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC241PW,118?
74HC241PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC241PW,118 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 74HC241PW,118?
For technical support, including 74HC241PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC241PW,118 requirements.
6.How does Aetrix verify that 74HC241PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HC241PW,118 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 74HC241PW,118 meets industry standards.
7.What is the process for return or replacement of 74HC241PW,118?
All 74HC241PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC241PW,118, 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 74HC241PW,118 part is unused and in its original packaging.
Return procedure for 74HC241PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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