RS0108YQ20

RS0108 8-Bit Bidirectional Voltage-Level Translator for Open-Drain and Push-Pull Applications FEATURES • • • • • • • No Direction-Control Data Rates 24Mbps (Push-Pull) 2Mbps (Open-Drain) 1.65V to 5.5V on A ports and 2.3V to 5.5V on B Ports (VCCA≤VCCB) VCC Isolation: If Either VCC is at GND, Both Ports are in the High-Impedance State No Power-Supply Sequencing Required: Either VCCA or VCCB can be Ramped First IOFF: Supports Partial-Power-Down Mode Operation Extended Temperature: -40°C to +85°C APPLICATIONS • • • • Handset Smartphone Tablet Desktop PC DESCRIPTION This 8-bit non-inverting translator is a bidirectional voltagelevel translator and can be used to establish digital switching compatibility between mixed-voltage systems. It uses two separate configurable power-supply rails, with the A ports supporting operating voltages from 1.65V to 5.5V while it tracks the VCCA supply, and the B ports supporting operating voltages from 2.3V to 5.5V while it tracks the VCCB supply. This allows the support of both lower and higher logic signal levels while providing bidirectional translation capabilities between any of the 1.8V, 2.5V, 3.3V and 5V voltage nodes. When the output-enable (OE) input is low, all I/Os are placed in the high-impedance state, which significantly reduces the power-supply quiescent current consumption. OE has an internal pull-down current source, if VCCA is powered. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The RS0108 is available in Green QFN3*3-20L and TSSOP20 packages. It operates over an ambient temperature range of -40°C to +85°C. Device Information PART NUMBER RS0108 (1) REV A.2 PACKAGE (1) BODY SIZE (NOM) TSSOP20(20) 6.50mm×4.40mm QFN3*3-20L(20) 3.00mm×3.00mm For all available packages, see the orderable addendum at the end of the data sheet. 1 / 21 www.run-ic.com RS0108 Functional Block Diagram A3 B3 Figure 1.Function Block Diagram 2 / 21 www.run-ic.com RS0108 Revision History Note: Page numbers for previous revisions may different from page numbers in the current version. VERSION A.1 A.2 Change Date 2020/12/2 2021/01/09 Change Item Initial version completed Add Moisture Sensitivity Level information 3 / 21 www.run-ic.com RS0108 PIN CONFIGURATIONS (TOP VIEW) A1 1 20 B1 VCCA 2 19 VCCB A2 3 18 B2 A3 4 17 B3 A4 5 16 B4 A5 6 15 B5 A6 7 14 B6 A7 8 13 B7 A8 9 12 B8 OE 10 11 GND (TOP VIEW) QFN3*3-20L TSSOP20 PIN DESCRIPTION PIN NAME TYPE (1) 19 A1 I/O 2 20 VCCA P 3 1 A2 I/O Input/output A2. Reference to VCCA. 4 2 A3 I/O Input/output A3. Reference to VCCA. 5 3 A4 I/O Input/output A4. Reference to VCCA. 6 4 A5 I/O Input/output A5. Reference to VCCA. 7 5 A6 I/O Input/output A6. Reference to VCCA. 8 6 A7 I/O Input/output A7. Reference to VCCA. 9 7 A8 I/O 10 8 OE I 11 9 GND ‒ Input/output A8. Reference to VCCA. Output Enable (Active High). Pull OE low to place all outputs in 3-state mode. Referenced to VCCA. Ground. 12 10 B8 I/O Input/output B8. Reference to VCCB. 13 11 B7 I/O Input/output B7. Reference to VCCB. 14 12 B6 I/O Input/output B6. Reference to VCCB. 15 13 B5 I/O Input/output B5. Reference to VCCB. TSSOP20 QFN3*3-20L 1 FUNCTION Input/output A1. Reference to VCCA. A Port Supply Voltage.1.65V ≤ VCCA ≤ 5.5V and VCCA ≤ VCCB. 4 / 21 www.run-ic.com RS0108 16 14 B4 I/O Input/output B4. Reference to VCCB. 17 15 B3 I/O Input/output B3. Reference to VCCB. 18 16 B2 I/O Input/output B2. Reference to VCCB. 19 17 VCCB P 20 18 B1 I/O B Ports Supply Voltage.2.3V ≤ VCCB ≤ 5.5V. Input/output B1. Reference to VCCB. Exposed pad should be soldered to PCB board and Exposed Pad GND connected to GND or left floating. (1) I=input, O=output, I/O=input and output, P=power 5 / 21 www.run-ic.com RS0108 SPECIFICATIONS Absolute Maximum Ratings Over operating free-air temperature range (unless otherwise noted) (1) SYMBOL PARAMETER MIN MAX UNIT VCCA Supply Voltage Range -0.3 6.0 V VCCB Supply Voltage Range -0.3 6.0 V A port -0.3 6.0 B port -0.3 6.0 OE -0.3 6.0 Voltage range applied to any output in the highimpedance or power-off state A port -0.3 6.0 B port -0.3 6.0 Voltage range applied to any output in the high or low state A port -0.3 VCCA+0.3 B port -0.3 VCCB+0.3 Input clamp current VI