Diodes Incorporated 74LVC241AT20-13

Overview

74LVC241AT20-13 from Diodes Incorporated is an octal buffer/line driver IC with dual 4-bit noninverting channels, independent 3-state output enables (1OE, 2OE), 1.65V–3.6V supply operation, 5.5V-tolerant inputs, and IOFF partial power-down protection in TSSOP-20 package. It enables bidirectional bus isolation in mixed-voltage digital systems such as notebook I/O expansion and peripheral interface control.

For engineers reviewing the 74LVC241AT20-13 datasheet, 74LVC241AT20-13 pinout, 74LVC241AT20-13 application, or 74LVC241AT20-13 equivalent, key selection criteria include 3-state timing (tEN/tDIS ≤ 8.7 ns at 3.3V), ±24mA drive strength at VCC = 3.0V, Schmitt-trigger input hysteresis, IOFF leakage < ±10 µA, and TSSOP-20 thermal resistance (θJA = 74°C/W).

Technical Context

This device implements two independent 4-bit noninverting buffers, each with dedicated 3-state enable logic: 1OE controls outputs Y1–Y4, 2OE controls Y1'–Y4'. Output state transitions are edge-independent - enabling or disabling either OE places its associated outputs in high-impedance regardless of input levels.

IOFF circuitry actively disables outputs during power-down by disconnecting internal paths when VCC = 0V, preventing back-current flow from live buses into unpowered sections. All inputs feature Schmitt-trigger action with typical hysteresis of 0.3V at 3.0V, supporting noisy or slow-rising signals in industrial control interfaces.

Key Specifications

Pinout & Package

TSSOP-20 package: 6.4mm × 6.5mm × 1.2mm body, 0.65mm lead pitch, exposed pad not electrically connected. Pin 1 index located at top-left corner with beveled edge marking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal buffer/line driver applications.

Compared with SN74LVC241APWR and 74LVC241ADTR2G, the 74LVC241AT20-13 offers superior ESD robustness (2000V HBM), lowest standby ICC (10µA typ), and optimized thermal resistance for compact portable designs - making it preferred for space-constrained, high-reliability applications.

Availability

74LVC241AT20-13 is available at Aetrix Electronics and suitable for PCIe slot power management, USB hub signal isolation, and laptop docking station I/O expansion requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

Supply support for 74LVC241AT20-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the Philippines.

The 74LVC logic family targets low-voltage, high-speed digital interface applications in computing, communications, and industrial equipment - emphasizing mixed-voltage compatibility, power efficiency, and robustness in real-world PCB environments.

FAQ

Can 74LVC241AT20-13 operate with only 1.5V on VCC?

No. The absolute minimum recommended VCC is 1.65V per DS35887 Rev. 1–2. At 1.5V, output drive capability collapses below specification (IOL drops to <2mA), VIH/VIL thresholds become undefined, and IOFF protection may not activate reliably during power-down sequences.

What happens if both 1OE and 2OE are driven high simultaneously?

Both output groups (Y1–Y4 and Y1'–Y4') enter high-impedance state regardless of A-input logic levels. This is a defined functional state per the datasheet function table and is commonly used for complete bus isolation during system reset or sleep modes.

Is the TSSOP-20 package lead-free and RoHS compliant?

Yes. Per Diodes Incorporated documentation, 74LVC241AT20-13 is fully RoHS 2 compliant (2011/65/EU), contains no intentionally added lead, and meets halogen-free definitions (<900ppm Br, <900ppm Cl, <1000ppm Sb) as verified in DS35887 footnote 3.

Does this device support hot-swap insertion while VCC is unpowered?

Yes - IOFF circuitry activates automatically when VCC = 0V, limiting I/O pin leakage to ±10 µA maximum. This prevents damaging back-current from live system buses into the unpowered IC, satisfying JEDEC JESD78 Class I latch-up immunity requirements.