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TXS0108EQPWRQ1 Detailed explanation of pin function specifications and circuit principle instructions

The part you mentioned, TXS0108EQPWRQ1, is a product manufactured by Texas Instruments (TI). It is an 8-channel, bidirectional voltage-level translator, designed for interfacing between different voltage logic levels. The device is typically used in applications where signals need to be translated between systems with different voltage requirements (e.g., 3.3V logic to 5V logic).

Package Information:

Package Type: QFN (Quad Flat No-lead) Package Size: 20-pin QFN (also available in other configurations) Pin Count: 20 pins

Pin Function Specification for TXS0108EQPWRQ1 (20-Pin QFN package):

Here is a detailed pinout list for the device, including the function of each pin. The TXS0108EQPWRQ1 uses a 20-pin QFN package, and each pin’s function is carefully outlined:

Pin Number Pin Name Pin Function Description 1 VCCA Supply voltage for A-side (low voltage side), typically 1.65V to 3.6V. 2 A1 A-side input/output channel 1. Interfaced with logic devices at low voltage level. 3 A2 A-side input/output channel 2. 4 A3 A-side input/output channel 3. 5 A4 A-side input/output channel 4. 6 A5 A-side input/output channel 5. 7 A6 A-side input/output channel 6. 8 A7 A-side input/output channel 7. 9 A8 A-side input/output channel 8. 10 GND Ground pin for the A-side. 11 B1 B-side input/output channel 1. Interfaced with logic devices at higher voltage level. 12 B2 B-side input/output channel 2. 13 B3 B-side input/output channel 3. 14 B4 B-side input/output channel 4. 15 B5 B-side input/output channel 5. 16 B6 B-side input/output channel 6. 17 B7 B-side input/output channel 7. 18 B8 B-side input/output channel 8. 19 VCCB Supply voltage for B-side (high voltage side), typically 2.3V to 5.5V. 20 OE Output enable pin for the translation logic. Can disable or enable signal translation.

Electrical Characteristics:

VCCA: 1.65V to 3.6V (logic low-side voltage) VCCB: 2.3V to 5.5V (logic high-side voltage) I/O Capacitance: 5pF per channel Propagation Delay (tpd): Typically 2ns, Max 10ns Logic-Level Conversion: Automatic, bi-directional voltage translation

FAQ: Common Questions about TXS0108EQPWRQ1 (20 FAQs)

Here’s a list of frequently asked questions about the TXS0108EQPWRQ1. These FAQs will help you understand the device’s application and functionality better.

What is the TXS0108EQPWRQ1 used for? The TXS0108EQPWRQ1 is used for bidirectional voltage-level translation between different logic voltage levels (e.g., 3.3V to 5V). What voltage ranges are supported by the TXS0108EQPWRQ1? The device supports 1.65V to 3.6V on the A-side (low voltage side) and 2.3V to 5.5V on the B-side (high voltage side). How many channels does the TXS0108EQPWRQ1 have? The TXS0108EQPWRQ1 has 8 channels, each with bidirectional voltage translation. What is the maximum pin count for this device? The device is available in a 20-pin QFN package. What is the typical propagation delay for this device? The typical propagation delay is 2ns, with a maximum delay of 10ns. Can the TXS0108EQPWRQ1 be used for unidirectional translation? No, the TXS0108EQPWRQ1 is designed for bidirectional translation. What is the minimum operating voltage for the A-side? The minimum voltage for the A-side is 1.65V. What is the maximum operating voltage for the B-side? The maximum voltage for the B-side is 5.5V. Does the device require an external pull-up resistor? No, the device internally handles the pull-up/down requirements for the voltage translation. What is the maximum current for each I/O pin? Each I/O pin can handle up to 8mA of current. What is the significance of the OE (Output Enable) pin? The OE pin is used to enable or disable the output translation. If OE is low, the device is disabled. Can I use the TXS0108EQPWRQ1 with 1.8V logic? The device is not designed for 1.8V logic and may not work correctly at that voltage. What type of applications is the TXS0108EQPWRQ1 typically used for? It is used in applications such as microcontroller interfacing, FPGA I/O expansion, and communication between systems with different voltage levels. What type of package is the TXS0108EQPWRQ1 available in? The TXS0108EQPWRQ1 is available in a 20-pin QFN (Quad Flat No-lead) package. Can I use the TXS0108EQPWRQ1 for I2C and SPI communication? Yes, the TXS0108EQPWRQ1 is commonly used for I2C and SPI communication when level shifting is needed. What is the difference between VCCA and VCCB? VCCA is the supply voltage for the low-voltage A-side, and VCCB is the supply voltage for the high-voltage B-side. What is the maximum operating temperature for the TXS0108EQPWRQ1? The device operates within a temperature range of -40°C to 125°C. What are the input and output voltage thresholds for the A-side and B-side? The A-side input threshold is typically 0.6×VCCA, and the B-side input threshold is typically 0.6×VCCB. Does the TXS0108EQPWRQ1 support automatic direction sensing? Yes, the device automatically detects the direction of signal flow and adjusts accordingly. Is the TXS0108EQPWRQ1 RoHS compliant? Yes, the TXS0108EQPWRQ1 is RoHS compliant and does not contain hazardous materials.

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