My Inquiry
My Account
Texas Instruments SN74HC241DWR
- Part No.:
- SN74HC241DWR
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74HC241DWR.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,208
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74HC241DWR from Texas Instruments is an octal noninverting buffer/line driver with dual 3-state outputs, designed for memory address and bus driving in industrial control and embedded systems. It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, exhibits typical propagation delay of 11 ns, and draws ≤80 μA ICC.
For engineers reviewing the SN74HC241DWR datasheet, SN74HC241DWR pinout, SN74HC241DWR application, or SN74HC241DWR equivalent, this page provides verified functional modes, SOIC-20 package details, thermal metrics (RθJA = 109.1°C/W), switching characteristics at 50 pF/150 pF loads, and validated alternative options for bus interface upgrades.
Technical Context
The SN74HC241DWR implements two independent 4-bit noninverting buffers, each with dedicated output-enable inputs (1OE and 2OE). Its CMOS architecture ensures rail-to-rail output swing, low input current (≤1 μA), and compatibility with LSTTL loads (up to 15 units).
Functional operation is defined by high-impedance output states when 1OE is high or 2OE is low; otherwise, data passes transparently from A inputs to Y outputs. Timing behavior is characterized across VCC = 2 V, 4.5 V, and 6 V with CL = 50 pF and CL = 150 pF load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - supports mixed-voltage system interfacing and legacy 5 V logic domains |
| Output Drive Capability | ±6 mA at 5 V - sufficient to directly drive 15 LSTTL inputs without external buffering |
| Propagation Delay (tpd) | 11 ns typical at VCC = 4.5 V, CL = 50 pF - enables reliable operation in 30+ MHz bus timing windows |
| Quiescent Current (ICC) | 80 μA max at 6 V - enables low-power standby in battery-backed or energy-sensitive applications |
| Input Leakage Current | 1 μA max - prevents unintended logic state shifts on unterminated or high-impedance traces |
| 3-State Enable Timing (ten/tdis) | 17 ns typical enable / 17 ns disable at 4.5 V - ensures clean bus arbitration with minimal contention window |
| Power Dissipation Capacitance | 35 pF per buffer - used to calculate dynamic power consumption in clocked bus applications |
Pinout & Package
SN74HC241DWR is housed in a 20-pin SOIC (DW) package measuring 12.80 mm × 7.50 mm with 1.27 mm pitch, RoHS-compliant NiPdAu lead finish, and moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | A1–A8 Inputs | Noninverting data inputs for eight-channel buffer path; must be tied to VCC or GND if unused |
| 9, 10, 11, 12, 13, 14, 15, 16 | Y1–Y8 Outputs | 3-state buffered outputs; high-impedance when corresponding OE is inactive |
| 17 | 1OE | Active-low enable for first 4-bit section (Y1–Y4); low = enabled, high = high-Z |
| 18 | 2OE | Active-high enable for second 4-bit section (Y5–Y8); high = enabled, low = high-Z |
| 19 | GND | Ground reference for all logic and power domains |
| 20 | VCC | Positive supply rail; requires local 0.1 μF bypass capacitor per TI layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit sections | Enables selective bus partitioning - e.g., address vs. data lines - with separate OE controls |
| 3-state outputs with fast enable/disable | 17 ns typical ten/tdis at 4.5 V minimizes bus contention during multi-driver arbitration |
| Rail-to-rail CMOS output swing | VOH ≥ 4.4 V and VOL ≤ 0.26 V at 4.5 V/6 mA ensures noise margin >0.7 V in 5 V systems |
| Low input capacitance | Ci ≤ 10 pF reduces loading on upstream drivers and preserves signal integrity on long traces |
| Wide temperature range | Operates from −40°C to +85°C - qualified for industrial-grade embedded controller and PLC applications |
Applications
| Memory Address Buffering | System Bus Transceiver Interface |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to SRAM or EPROM in an industrial HMI panel. IC Role / Device Role / Timing Role: Noninverting buffer with 3-state control isolates CPU address bus during DMA cycles. Use Value: ±6 mA drive strength eliminates need for discrete transistor buffers; 11 ns tpd supports 30 MHz address setup timing. | Use Scenario: Bidirectional data bus isolation between FPGA and peripheral ASIC in test equipment. IC Role / Device Role / Timing Role: Direction-controlled line driver enabling shared data path with precise OE timing coordination. Use Value: Independent 1OE/2OE pins allow staggered enable sequencing to prevent bus contention during handshaking. |
| Clock Distribution Fanout | Legacy Peripheral Interface |
Use Scenario: Distributing a 25 MHz system clock to multiple synchronous peripherals (ADC, DAC, UART) in medical instrumentation. IC Role / Device Role / Timing Role: Low-skew, noninverting fanout buffer maintaining signal integrity across PCB traces. Use Value: 35 pF Cpd and 10 pF Ci minimize added jitter; rail-to-rail swing ensures full logic threshold coverage. | Use Scenario: Interfacing a modern ARM-based SoC with legacy parallel LCD controller requiring 5 V tolerant inputs. IC Role / Device Role / Timing Role: Level-shifting buffer translating 3.3 V logic outputs to 5 V-compatible bus signals. Use Value: 2–6 V VCC range allows direct 5 V operation while accepting 3.3 V inputs without external level shifters. |
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 |
|---|---|---|---|
| SN74HCT241DWR | TTL-compatible input thresholds (VIH = 2 V min), slightly higher ICC (160 μA max) | Better suited for mixed 5 V TTL/CMOS systems where input noise immunity is critical | Select when interfacing with legacy TTL outputs or noisy industrial environments requiring guaranteed VIH/VIL margins |
| SN74LVC244APW | 3.3 V only (1.65–3.6 V), lower tpd (5.5 ns typ), 24 mA drive, TSSOP-20 package | Optimized for high-speed, low-voltage digital subsystems (e.g., FPGA I/O banks) | Choose for new 3.3 V designs prioritizing speed and density; not drop-in due to voltage and pinout differences |
Compared with SN74HC241DWR, SN74HCT241DWR offers stronger noise immunity in 5 V systems but consumes more quiescent power, while SN74LVC244APW delivers faster performance in 3.3 V domains but requires board redesign for voltage and footprint compatibility.
Availability
SN74HC241DWR is available at Aetrix Electronics and suitable for industrial control panels, embedded instrumentation, and legacy system upgrades requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for SN74HC241DWR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in industrial, automotive, and communications markets.
The SN74HC241DWR belongs to TI's 74HC logic family, engineered for high noise immunity, low power, and robust 3-state bus interface capability in industrial and commercial applications.
FAQ
What is the maximum operating temperature for SN74HC241DWR?
The SN74HC241DWR is rated for operation from −40°C to +85°C ambient temperature. This industrial-grade specification ensures reliable performance in programmable logic controllers, motor drives, and factory automation equipment where enclosure temperatures may exceed consumer-grade limits. The SOIC-20 package's RθJA of 109.1°C/W defines its thermal derating curve under real-world PCB layouts.
Does SN74HC241DWR support 3.3 V logic levels?
Yes, SN74HC241DWR supports 3.3 V operation within its 2 V to 6 V supply range. At VCC = 3.3 V, it meets guaranteed VOH ≥ 2.97 V and VOL ≤ 0.33 V under 4 mA load per TI's electrical characteristics table. Input thresholds scale with VCC, so VIH ≈ 2.0 V and VIL ≈ 1.0 V at 3.3 V - compatible with standard 3.3 V CMOS outputs.
How are the output-enable pins configured on SN74HC241DWR?
SN74HC241DWR has two independent output-enable inputs: pin 17 (1OE) is active-low for Y1–Y4, and pin 18 (2OE) is active-high for Y5–Y8. When 1OE is low, Y1–Y4 follow A1–A4; when high, they enter high-impedance. When 2OE is high, Y5–Y8 follow A5–A8; when low, they go high-Z. This asymmetry enables flexible bus segmentation without external logic.
Can SN74HC241DWR replace SN74LS241 in existing designs?
SN74HC241DWR can functionally replace SN74LS241 in most cases but requires verification of VCC and loading conditions. Unlike the bipolar LS part, SN74HC241DWR draws far less supply current (80 μA vs. ~25 mA), operates down to 2 V, and offers higher noise immunity. However, its output voltage swing is rail-to-rail rather than TTL-swing, so ensure downstream receivers tolerate CMOS logic levels.
What is the recommended bypass capacitor for SN74HC241DWR?
Texas Instruments recommends a 0.1 μF ceramic capacitor placed as close as possible to the VCC (pin 20) and GND (pin 19) pins of SN74HC241DWR. For systems with high-frequency noise or multiple devices, paralleling a 1 μF capacitor improves low-frequency decoupling. Layout guidelines specify minimizing trace inductance between capacitor pads and device pins to maintain effective high-frequency suppression.
SN74HC241DWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 20-SOIC (0.295", 7.50mm 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
SN74HC241DWR FAQ
1.How can I place an order for SN74HC241DWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC241DWR 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 SN74HC241DWR reliable?
The price and inventory of SN74HC241DWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC241DWR is usually 5 days.
3.What payment methods are accepted for SN74HC241DWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC241DWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC241DWR?
SN74HC241DWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC241DWR 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 SN74HC241DWR?
For technical support, including SN74HC241DWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC241DWR requirements.
6.How does Aetrix verify that SN74HC241DWR is sourced from the original manufacturer or authorized distributors?
All SN74HC241DWR 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 SN74HC241DWR meets industry standards.
7.What is the process for return or replacement of SN74HC241DWR?
All SN74HC241DWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC241DWR, 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 SN74HC241DWR part is unused and in its original packaging.
Return procedure for SN74HC241DWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74HC241DWR 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
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…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
