SN74HCS541QPWRQ1

SN74HCS541QPWRQ1 is an octal buffer/driver with 3‑state outputs in the High‑Speed CMOS family. It provides eight non‑inverting data paths (A0–A7 to Y0–Y7) with a single output‑enable input (G). When the buffer is enabled, inputs are passed to outputs; when disabled, all outputs go high‑impedance, allowing bus sharing.
Key points:
- 8-bit buffer/driver with 3‑state outputs
- Non‑inverting data path; A0–A7 to Y0–Y7
- One output‑enable input (G)
- Fast CMOS logic, TTL‑level inputs, typical Vcc around 5V (2–6V range in many parts)
- Packages: standard 20‑pin options (DIP, SOIC, TSSOP); “PWRQ1” suffix indicates a specific package/reel option from TI
Typical uses:
- Buffering between microcontrollers/CPUs and peripherals
- Bus interfacing and fan‑out buffering
- Isolating loading on data/address buses
Always consult the exact TI datasheet for your exact package and voltage specs.

Equivalent drop-in parts (8-bit buffer/3-state with same pinout) include:
- 74HCS541 (generic HCS version, from multiple vendors)
- 74HC541 (high-speed CMOS family)
- DM74HCS541 (Renesas)
- MM74HCS541 (Toshiba)
- MC74HCS541 (Motorola/Onsemi lineage)
- ST74HC541 (STMicroelectronics)
Note: verify Vcc range (commonly 2–6V), enable input polarity, and package (DIP-20/SOIC-20) for exact compatibility.

SN74HCS541QPWRQ1 features:
- Octal, noninverting buffer/driver with 3-state outputs
- 8-bit data path with a single output enable (OE) control; outputs go high-impedance when disabled
- TTL-compatible input thresholds (HCS family) for easy interfacing
- Wide supply voltage range: typically 2.0 V to 6.0 V
- High-speed CMOS performance with low power consumption
- Fully static operation (no clock or latches required)
- Pb-free, RoHS-compliant package option: QPWRQ1
Uses: buffering/driving data lines, bus interfacing, level-shifting in 2–6 V systems.

Pin count: 20 pins (20-pin package such as PDIP/SOIC).
Function: Octal buffer/driver with 3-state outputs. It provides eight noninverting buffers (A0–A7 to Y0–Y7) with a common output-enable input (G) that tri-states the outputs when disabled.

Manufacturer: Texas Instruments (TI).
Company type: An American multinational semiconductor design and manufacturing company that specializes in analog, mixed-signal, and embedded processing integrated circuits, headquartered in Dallas, Texas.

Application areas of SN74HCS541QPWRQ1:
- Eight-bit buffer/line driver with 3-state outputs for buffering data/address buses.
- Bus sharing and isolation in microprocessor/microcontroller systems; output enable for tri-state control.
- Increases fan-out and reduces driver load by buffering to multiple inputs.
- Voltage-range compatibility across 2–6 V CMOS logic for interfacing devices.
- Memory interfaces, backplanes, peripheral expansion, and general-purpose 8-bit data routing in high-speed digital systems.

20-pin plastic small-outline package (TSSOP-20), RoHS-compliant.