Shift Logic Levels Like a Pro – with SN74LVCC3245APWR

SN74LVCC3245APWR is an 8-bit bidirectional bus transceiver and buffer manufactured by Texas Instruments. This device is designed for signal transmission between two different logic domains, making it an ideal solution for voltage level translation. The SN74LVCC3245A features two independent power supply inputs – V_CCA and V_CCB – allowing each side of the device to operate at a different voltage. The direction of data transmission between ports A and B is controlled by the DIR signal: when set high, data flows from port A to B; when low, from B to A. This device is used wherever reliable logic level shifting or signal buffering is needed, such as in microcontroller systems, communication interfaces, or peripheral devices.

Technical specifications:

• Type: 8-bit voltage level translator
• Manufacturer: Texas Instruments
• Power supply voltage range: 2.3 V – 5.5 V (supports both ports A and B)
• Operating temperature range: –40 °C to +85 °C
• Mounting type: SMD (Surface Mount Device)
• Package: TSSOP24 (PWR marking)

Applications:

• Used for handling USB, UART, SPI, and I²C interfaces in systems with different logic levels
• Suitable for portable systems, telecommunications, and industrial automation
• Enables connectivity between legacy digital components and modern systems with differing logic voltages

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