SN74AHC541-Q1

SN74AHC541-Q1 is a Texas Instruments automotive octal buffer/driver with 3-state outputs — for driving bus lines, memory address registers and transmission lines in automotive modules that run on a single 2 V to 5.5 V CMOS rail. The AHC family is the selection point for straightforward buffering: standard CMOS inputs, balanced outputs, over-voltage-tolerant inputs, very-high-speed 5–10 ns class propagation delay, only 40 µA maximum supply current, and ±8 mA output drive, with latch-up performance above 250 mA per JESD 17 and -40°C to +125°C automotive operation. Eight non-inverting buffers share two active-low output-enable pins (both must be low for the outputs to be active), and inputs and outputs sit on opposite sides of the package to ease PCB routing. Package options are 20-pin TSSOP, VSSOP and VQFN. Selection advice: choose the AHC541-Q1 for 2 V to 5.5 V CMOS buffering with no level translation; if the inputs must accept TTL levels, use the SN74AHCT541-Q1 (4.5 V to 5.5 V) instead; if the design mixes voltage domains (e.g. 1.8 V to 3.3 V or 3.3 V to 5 V), use the SN74LV8T541-Q1 translator instead of adding a separate level shifter. Quote the full ordering code — PW is TSSOP-20, DGS is VSSOP-20, RKS is VQFN-20. Parameters verified against Texas Instruments documentation.