ET74LCX244

ET74LCX244 is an octal buffer/driver in the LCX low‑power CMOS family. It provides 8 noninverting buffers (A0–A7 to Y0–Y7) with tri‑state outputs, split into two 4‑bit sections. It has two active‑low output‑enable inputs (G1 and G2). When both enables are low, data from A0–A7 appears on Y0–Y7; if either enable is high, the corresponding four outputs go high‑impedance. This makes it ideal for buffering a data bus, isolating loads, or sharing a bus among devices. It’s a drop‑in type for similar 74xx244 devices, offering low power operation typical of the LCX family. Pinout (DIP/SOIC) includes Vcc, GND, A0–A7, Y0–Y7, G1, G2. Use cases include buffering/multiplexing address/data buses, simple level shifting, or protecting a microcontroller from heavier bus loads. For exact voltage range and timing, consult the specific ET74LCX244 datasheet.

ET74LCX244 is an octal buffer/line driver with 3-state outputs (74LCX family). Common equivalents:
- TI SN74LCX244N
- TI SN74LVC244N
- Nexperia 74LVC244A (74LVC244APW)
Note: check pinout and supply voltage for compatibility; LCX variants are typically 2.7–3.3V (or 3.0–3.6V) while LVC variants may cover 1.65–3.6V.

Here are typical features of ET74LCX244 (octal buffer/line driver with 3-state outputs):
- Octal buffer/line driver with two 4-bit sections (A1–A4 to Y1–Y4 and A5–A8 to Y5–Y8)
- Noninverting data path (A inputs to corresponding Y outputs)
- Two independent, active-low enable inputs (OE1 and OE2) for tri-state control
- 3-state outputs when disabled (high-impedance to interface cleanly on buses)
- Wide supply range: 2.0 V to 3.6 V (low-voltage CMOS LCX family)
- TTL/CMOS input compatible; outputs drive standard CMOS loads
- Suitable for buffering and driving bus lines; reduces loading and contention
- Low-power CMOS technology with fast propagation (typical for LCX family)
- Available in common packages (e.g., DIP, SOIC) depending on vendor
(Exact voltage ranges and timings can vary by manufacturer; check the specific datasheet for your part.)

- Pin count: 20 pins (DIP/SOIC typical).
- Function: Octal buffer/line driver with 3-state outputs. It provides two 4‑bit buffers (A1–A4 to Y1–Y4 and A5–A8 to Y5–Y8) with separate active‑low output-enable pins (OE1 and OE2) to tri-state the outputs as needed.

ET74LCX244 is an octal buffer/line driver with 3-state outputs. Common applications include:
- Buffering and driving data/address buses between a CPU, memory, and peripherals
- Expanding a bus and isolating devices with the output-enable control
- Driving long interconnects or high-capacitance loads to improve signal integrity
- Use in backplane/backplane-like interfaces, peripheral interconnects, and I/O expansion
- General-purpose I/O buffering in digital systems

ET74LCX244 is a 20-pin device. Common package options are DIP-20 (through-hole) and SOIC-20 (surface-mount); some manufacturers also offer TSSOP/MSOP variants.