SN74LVC245ARGYR

SN74LVC245ARGYR is an 8-bit, bidirectional bus transceiver with 3-state outputs from TI. It connects two 8-bit buses (A[7:0] and B[7:0]) and transfers data in either direction under control of DIR. An active-low /OE enables the outputs; when /OE is high, both sides are high-impedance. It operates from a supply of 1.65–3.6 V, suitable for 3.3 V, 2.5 V, and 1.8 V systems. Key features include CMOS/TTL-compatible inputs, moderate drive suitable for common-speed interfaces, and low static power. Typical uses include level-shifting and buffering between voltage-domain components, bus isolation, and multiplexing data paths in microcontroller/memory-peripheral interfaces. Package options are 20-pin surface-mount (e.g., SOIC/TSSOP) with RoHS compliance. Pinout basics: A0–A7, B0–B7, DIR, /OE, VCC, GND. In short: a versatile 8-bit transceiver used to link or isolate buses across different logic levels.

Equivalent parts (same function: octal bus transceiver with 3-state outputs) from other vendors include:
- Nexperia 74LVC245A
- Onsemi MC74LVC245A
- Renesas uPD74LVC245
- Toshiba TC74LVC245A
Note: ensure matching package, voltage (3.3/5V), and temperature rating.

Here are the main features of SN74LVC245ARGYR:
- 8-bit bidirectional bus transceiver with 3-state outputs (A and B ports)
- Non-inverting data path in either direction
- DIR input selects data flow (A→B or B→A)
- OE (output enable) controls tri-state on both ports
- Vcc range: 1.65 V to 3.6 V (low-voltage CMOS)
- Ioff support for partial-power-down (prevents back-powering when Vcc is off)
- TTL/CMOS input compatibility with standard logic levels
- ESD protection on all inputs/outputs
- RoHS-compliant packaging (ARGYR family) and suitable for a variety of bus-interface applications

- Pin count: 20 pins (20-pin package).
- Function: Octal (8-bit) bidirectional bus transceiver with 3-state outputs. Data can transfer between A[7:0] and B[7:0]; direction is controlled by DIR (A→B or B→A) and outputs are enabled/disabled by OE (active low). Operates on Vcc = 1.65–3.6 V (LVC family).

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational technology company that designs and manufactures semiconductors and integrated circuits.

- 8-bit bidirectional bus transceiver with 3-state outputs (DIR and OE)
- Buffers/isolation for data and address lines between MCU/SoC and peripherals or memory
- Bidirectional level interfacing between devices on different voltage domains within the LVC range (1.65–3.6 V)
- Bus-sharing applications, enabling multiple masters/slaves on a common data bus
- High-speed digital interconnect buffering to improve drive, timing, and noise immunity in embedded, consumer, automotive, and industrial electronics

20-pin TSSOP package (TSSOP-20), RoHS-compliant.