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Texas Instruments SN74HC241PWRE4
- Part No.:
- SN74HC241PWRE4
- Manufacturer:
- Texas Instruments
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74HC241PWRE4.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,330
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Product details
Overview
SN74HC241PWRE4 from Texas Instruments is an octal noninverting 3-state buffer/line driver IC designed for memory address, clock, and bus signal conditioning. It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, exhibits typical propagation delay of 11 ns (VCC = 4.5 V, CL = 50 pF), and draws ≤80 μA ICC max - enabling low-power, high-density bus interfacing in industrial control and embedded systems.
For engineers reviewing the SN74HC241PWRE4 datasheet, SN74HC241PWRE4 pinout, SN74HC241PWRE4 application, or SN74HC241PWRE4 equivalent, key selection criteria include its dual 4-bit 3-state architecture with independent OE controls (1OE/2OE), TSSOP-20 package footprint, rail-to-rail CMOS-compatible input thresholds, and verified operation across −40°C to +85°C.
Technical Context
The SN74HC241PWRE4 implements two independent 4-bit noninverting buffers, each with dedicated active-low (1OE) and active-high (2OE) output-enable inputs. Its 3-state outputs support bidirectional bus driving and memory address register buffering without contention.
It uses standard HC CMOS logic with Schmitt-trigger–free inputs, supports mixed-voltage interfacing within its 2–6 V supply range, and meets JEDEC JESD78 Class II latch-up immunity. Thermal resistance RθJA is 131.8°C/W in its TSSOP-20 package, requiring attention to power dissipation under sustained high-output-current conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 6 V - enables direct interface with 3.3 V and 5 V logic domains without level shifters |
| Output Drive | ±6 mA at 5 V - sufficient to drive 15 LSTTL loads or terminate short PCB traces |
| Propagation Delay | 11 ns typical (VCC = 4.5 V, CL = 50 pF) - supports >20 MHz bus toggle rates in buffered paths |
| Quiescent Current | ≤80 μA max - suitable for battery-backed or always-on subsystems with strict leakage budgets |
| Input Leakage | ≤1 μA max - prevents unintended logic state shifts on unterminated or high-impedance control lines |
| 3-State Enable Timing | ten = 29 ns max, tdis = 32 ns max (VCC = 4.5 V) - ensures clean bus release before next driver activation |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded and automation applications |
Pinout & Package
TSSOP-20 package (6.50 mm × 4.40 mm, 1.2 mm max height), lead-free NiPdAu finish, 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 buffer channels; CMOS-compatible thresholds scale with VCC |
| 9, 10, 11, 12, 13, 14, 15, 16 | Y1–Y8 Outputs | 3-state buffered outputs; high-impedance when respective OE condition is met |
| 17 | 1OE | Active-low enable for first 4-bit group (Y1–Y4); low = enabled, high = high-Z |
| 18 | 2OE | Active-high enable for second 4-bit group (Y5–Y8); high = enabled, low = high-Z |
| 19 | GND | Digital ground reference for all I/O and internal logic |
| 20 | VCC | Positive supply rail (2–6 V); requires local 0.1 μF bypass capacitor per TI recommendations |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit groups | Enables selective bus partitioning - e.g., address vs. control lines - using separate 1OE/2OE controls |
| Rail-to-rail input voltage range | VIH/VIL thresholds track VCC (e.g., VIH = 3.15 V at VCC = 4.5 V), ensuring robust noise margin across supply voltages |
| Low dynamic power consumption | Cpd = 35 pF per buffer - minimizes switching current in high-frequency bus applications |
| High noise immunity | Input hysteresis not specified; relies on standard HC noise margins (≥30% VCC at VCC = 5 V) |
| Bus-hold capability | Not integrated - unused inputs must be externally tied to VCC or GND per TI SCBA004 guidance |
Applications
| Memory Address Buffering | Microcontroller Bus Expansion |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to external SRAM or flash memory with minimal skew and contention risk. IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating MCU address outputs from memory bus; enables shared bus access with other peripherals. Use Value: Prevents address line loading and timing degradation while allowing clean bus release via OE control during DMA cycles. | Use Scenario: Expanding GPIO count on an MCU by adding parallel I/O ports via 8-bit data latches and direction-controlled buffers. IC Role / Device Role / Timing Role: Bidirectional data path conditioner between MCU port and peripheral bus; 3-state outputs prevent back-driving during read operations. Use Value: Enables reliable 8-bit parallel communication with peripherals such as LCD controllers or sensor arrays without external pull-ups or direction logic. |
| Clock Distribution | Industrial PLC I/O Module |
Use Scenario: Fan-out distribution of a system clock signal to multiple synchronous logic blocks (e.g., ADC, DAC, FPGA config logic). IC Role / Device Role / Timing Role: Low-skew, noninverting clock buffer with 3-state disable - allows dynamic clock gating per subsystem. Use Value: Maintains tight edge integrity (tpd = 11 ns typ.) and eliminates clock contention during sleep mode via OE assertion. | Use Scenario: Interfacing isolated digital input/output modules to a central PLC backplane bus operating at 5 V or 3.3 V. IC Role / Device Role / Timing Role: Level-translating and bus-isolating buffer for status/command signals between field-side isolation barriers and controller-side logic. Use Value: Supports mixed-voltage operation (2–6 V) and withstands industrial ESD per TI's handling guidelines, reducing system-level protection overhead. |
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 |
|---|---|---|---|
| SN74HCT241PWRE4 | TTL-compatible input thresholds (VIH = 2 V min), otherwise identical pinout, timing, and drive | Better suited for legacy 5 V TTL bus interfacing where HC thresholds may cause marginal noise margin | Select when interfacing directly with older 74LS/74ALS devices without level shifters |
| 74LCX241MTCX | Lower VCC range (2.0–3.6 V), higher speed (tpd = 5.5 ns @ 3.3 V), different pinout (TSSOP-20 but shifted pin mapping) | Optimized for 3.3 V-only systems with tighter timing budgets; not pin-compatible | Choose for new 3.3 V designs requiring sub-6 ns propagation and lower dynamic power |
Compared with SN74HCT241PWRE4, the SN74HC241PWRE4 offers superior noise immunity in pure CMOS environments but requires level translation for TTL inputs; versus 74LCX241MTCX, it provides broader supply flexibility and proven industrial temperature operation at the cost of slightly higher latency and static current.
Availability
SN74HC241PWRE4 is available at Aetrix Electronics and suitable for industrial control systems, embedded instrumentation, and programmable logic controller (PLC) I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74HC241PWRE4 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 logic solutions for industrial, automotive, and communications markets.
The SN74HC241PWRE4 belongs to TI's industry-standard 74HC logic family, engineered for high noise immunity, low power, and interoperability across mixed-voltage digital systems - particularly targeting memory, bus, and clock interface applications.
FAQ
What is the maximum recommended operating voltage for SN74HC241PWRE4?
The absolute maximum supply voltage for SN74HC241PWRE4 is 7 V, but the recommended operating range is 2 V to 6 V per TI's SCLS300E datasheet. Operation above 6 V risks exceeding electrical characteristics guarantees and may accelerate device aging. For reliable long-term use in industrial applications, maintain VCC ≤ 6 V with proper decoupling.
Does SN74HC241PWRE4 support hot-swap or live-insertion?
No, SN74HC241PWRE4 does not support hot-swap. Its absolute maximum ratings specify no input voltage beyond VCC or below GND, and no current rating for powered insertion. TI documentation requires VCC to be stable before applying input signals. Use external series resistors and sequencing controls if live insertion is required in the system design.
Can SN74HC241PWRE4 drive a 50-pF load at 10 MHz reliably?
Yes. With typical tpd = 11 ns and output drive of ±6 mA at 5 V, SN74HC241PWRE4 can drive a 50-pF load at 10 MHz while maintaining clean edges and <5% duty cycle distortion. Switching characteristics in the datasheet are validated at CL = 50 pF, confirming suitability for standard bus and clock fan-out applications at this frequency.
What is the function of pin 17 (1OE) and pin 18 (2OE) on SN74HC241PWRE4?
Pin 17 (1OE) is the active-low output-enable for Y1–Y4; when low, those outputs pass A1–A4 noninverted, and when high, they enter high-impedance. Pin 18 (2OE) is active-high for Y5–Y8; high enables buffering, low forces high-Z. This dual-OE architecture allows independent control of two 4-bit data groups - critical for segmented bus management in SN74HC241PWRE4 implementations.
Is SN74HC241PWRE4 RoHS compliant and lead-free?
Yes, SN74HC241PWRE4 is RoHS compliant and features a lead-free NiPdAu terminal finish, as confirmed in TI's PACKAGE OPTION ADDENDUM. It meets JEDEC J-STD-020 moisture sensitivity level 1 and is rated for peak reflow at 260°C. The "E4" suffix denotes TI's green packaging standard, including exemption from certain RoHS substance restrictions where permitted.
SN74HC241PWRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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-TSSOP
SN74HC241PWRE4 FAQ
1.How can I place an order for SN74HC241PWRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC241PWRE4 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 SN74HC241PWRE4 reliable?
The price and inventory of SN74HC241PWRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC241PWRE4 is usually 5 days.
3.What payment methods are accepted for SN74HC241PWRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC241PWRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC241PWRE4?
SN74HC241PWRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC241PWRE4 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 SN74HC241PWRE4?
For technical support, including SN74HC241PWRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC241PWRE4 requirements.
6.How does Aetrix verify that SN74HC241PWRE4 is sourced from the original manufacturer or authorized distributors?
All SN74HC241PWRE4 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 SN74HC241PWRE4 meets industry standards.
7.What is the process for return or replacement of SN74HC241PWRE4?
All SN74HC241PWRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC241PWRE4, 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 SN74HC241PWRE4 part is unused and in its original packaging.
Return procedure for SN74HC241PWRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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