SN74AVCH8T245DGVR

SN74AVCH8T245DGVR is an 8-bit bidirectional bus transceiver with tri-state outputs. It provides A0–A7 and B0–B7 ports, a single DIR input to select direction (A→B or B→A), and an active-low OE input to enable/disable the outputs ( Outputs go high-impedance when OE is inactive). It serves as a buffer between two buses or voltage domains, useful for bridging microcontrollers to memories or peripherals or for sharing a bus on a backplane. It belongs to the AVCH family (high-speed CMOS) and typically operates from a single supply in the 2.7–5.5 V range (check the datasheet for exact values). Features include low power and fast propagation delays; the DGVR suffix indicates a RoHS-compliant package. Applications include level shifting, bus isolation, and data routing in mixed-voltage systems.

Equivalent parts (octal bidirectional transceivers with 3-state outputs) include:
- MC74AVCH8T245 (On Semiconductor)
- 74AVCH8T245 (NXP/Nexperia)
- SN74LVC8T245 (Texas Instruments)
- 74LVC8T245 (Nexperia/TI)
Note: check Vcc range and bus-hold capability, as these features can vary between families (AVCH vs LVC) to ensure proper replacement.

Key features of SN74AVCH8T245DGVR:
- 8-bit bidirectional bus transceiver with 3-state outputs
- A-side and B-side with separate supplies (VCCA and VCCB) for voltage translation
- Direction control input (DIR) and output enable (OE, active-low)
- Data can transfer in either direction depending on DIR
- High-impedance outputs when OE is inactive, allowing multiple devices on a common bus
- Suitable for interfacing different voltage domains and bus sharing
- CMOS/TTL-compatible inputs; robust ESD protection on I/O
- 20-pin DGVR package (typical TI small-outline packaging)
- Industrial temperature range (typical) for reliable operation in harsh environments
Note: For exact voltage ranges, timing, and package details, refer to the TI datasheet.

- Pin count: 20 pins (DGVR package).
- Function: 8-bit bidirectional transceiver with 3-state outputs. Transfers data between two 8-bit buses (A and B) with separate supplies (VCCA, VCCB). DIR selects the transfer direction (A↔B); /OE enables/disables the outputs.

- Manufacturer: Texas Instruments (TI)
- What kind of company: An American multinational corporation and one of the world’s largest designers and manufacturers of semiconductors and electronic components (analog, digital, and embedded processing ICs).

SN74AVCH8T245DGVR is an 8-bit bidirectional bus transceiver with tri-state outputs (DIR and OE). Applications include:
- Level shifting and buffering between devices on different voltage domains
- Data buffering between microprocessors/memory/peripherals (e.g., displays, ADC/DAC)
- Bus isolation/expansion and shared-bus architectures (backplanes, motherboards)
- System interfacing in automotive/industrial electronics requiring controlled bidirectional data transfer
In short, it enables safe, controlled bidirectional data transfer and bus expansion in mixed-voltage digital systems.

20-pin TSSOP package (DGV suffix indicates TSSOP-20, RoHS-compliant, Tape & Reel).