SN74LVC244ADW

SN74LVC244ADW is an 8‑bit noninverting buffer/driver (octal buffer) with 3‑state outputs from TI’s SN74LVC family. It provides two 4‑bit buffers (A1–A4 to Y1–Y4 and A5–A8 to Y5–Y8) with separate output-enable controls (OE1 and OE2).
Key features
- Two 4‑bit channels with tri‑state outputs; outputs go high‑impedance when their OE input is deasserted.
- Data flows from A inputs to Y outputs (noninverting).
- Supply voltage: Vcc = 1.65–3.6 V; inputs are CMOS/TTL compatible within this range.
- Suitable for buffering and fan‑out on data buses in mixed‑voltage digital systems.
Package/variants
- ADW suffix indicates a specific TI package/temperature grade; check the datasheet for exact packaging and industrial vs. extended temperature options.
Typical applications
- Buffering and isolating data signals between microcontrollers/FPGA logic and peripherals, memory buses, or other devices; helps fan‑out and bus sharing while maintaining signal integrity.
For exact electrical specs (voltage levels, propagation delay, current drive) and packaging, consult the TI SN74LVC244ADW datasheet.

Here are the key features of SN74LVC244ADW:
- Octal buffer/line driver with 3-state outputs (two 4-bit sections)
- Noninverting data path; two separate output-enable inputs (one per 4-bit group)
- Supply voltage: 1.65 V to 3.6 V (LVC family)
- Ioff supports partial-power-down; no back-powering of other circuitry
- High-impedance outputs when disabled
- Compatible with CMOS/TTL inputs; robust ESD protection
- 20-pin package (DW variant) suitable for compact designs
- Suitable for high-speed, low-power bus buffering in mixed-voltage systems
Note: For exact voltage, current drive, timing, and package details, please consult the TI datasheet.

It comes in a 20-pin wide-body SOIC (surface-mount) package—the DW suffix denotes the wide (0.300") body.

- Pin count: 20 pins (DW package variant)
- Function: Octal buffer/line driver with 3-state outputs. It buffers 8 data lines (A1–A8) to 8 outputs (Y1–Y8) with two independent 4-bit enable controls (1OE and 2OE) to tri-state the respective groups.

- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: An American multinational technology company that designs and manufactures semiconductors and integrated circuits (analog, digital, and mixed-signal ICs).

SN74LVC244ADW is an 8-bit, two 4-bit buffer/line driver with tri-state outputs. Applications: bus buffering/fan-out between microcontrollers/CPUs and peripherals; isolation of memory address/data buses; high-speed signaling in backplanes and interconnects; 3.3V/5V interfacing within VI limits; general I/O buffering for displays and peripheral devices.

Equivalent devices (8-bit buffer/line driver with 3-state outputs in the LVC family):
- STMicroelectronics: 74LVC244A
- Nexperia: 74LVC244A
- Onsemi: MC74LVC244A (MC74LVC244A)
- Renesas: uPD74LVC244 (uPD74LVC244A)
These are pin-for-pin compatible substitutes for TI SN74LVC244ADW in most applications.