Dual 4-bit buffer for bus isolation and line driving
The Nexperia 74HC241PW,112 is a dual 4-bit non-inverting buffer with 3-state outputs, part of the 74HC high-speed CMOS logic family. It provides eight buffer channels organized as two independent 4-bit elements, each with its own output enable control. The 3-state outputs allow the device to drive shared data buses or memory address lines without contention, making it a standard choice for bus isolation, line driving, and memory interface buffering in mixed-voltage digital systems.
This range lets it interface between legacy 5V peripherals and modern 3.3V controllers without a dedicated level shifter — the inputs are 5V-tolerant when running at 3.3V. The wide temperature grade also simplifies qualification across a product line spanning indoor and outdoor enclosures.
Output drive and 3-state control
Each output sources or sinks 7.8mA at the rated supply voltage, sufficient for driving CMOS logic inputs, LED indicators, or short PCB traces. The 3-state outputs go high-impedance when the corresponding output enable is deasserted, allowing multiple buffers to share a bus without bus-fight. The non-inverting logic path means the output follows the input — no polarity inversion to account for in the timing budget.
20-TSSOP footprint and layout
Housed in a 20-lead TSSOP (4.40mm body width), the 74HC241PW,112 occupies a compact board footprint suited for dense digital PCBs. The 0.65mm pin pitch requires careful routing of the output enable and data lines, but the pinout follows the industry-standard 74HC241 arrangement, easing layout reuse.
No last-time-buy risk is known.