Device identity and key parametrics
The SN74HC244NSR is a Texas Instruments 74HC-series octal buffer with non-inverting logic and 3-state outputs, packaged in a 20-SOIC (0.209", 5.30mm width) surface-mount package. It operates from a 2V to 6V supply rail — the full HC family range — and is rated for -40°C to 85°C ambient, covering industrial temperature requirements.
Output drive and bus isolation
Each of the two 4-bit elements sources or sinks 7.8 mA at the output high and low states. The 3-state outputs let the device isolate from a shared bus when the output-enable line is inactive — a standard feature for memory-address or data-bus buffering where multiple drivers share the same lines.
Package and footprint fit
Housed in a 20-SOIC package (supplier device package 20-SO), the SN74HC244NSR uses the standard 5.30mm-wide SOIC body with 1.27mm pin pitch. The surface-mount footprint is common across many 20-pin SOIC logic parts, so a board already laid out for a 74HC244 in SOIC-20 accepts this exact device without layout changes.
Lifecycle and compliance
Texas Instruments lists the SN74HC244NSR as Active with RoHS3 compliance.
Sourcing posture
Sourced through independent distribution channels. The part is quoted to order — no stock-holding claim is made here.