Description:Provides high-performance I/O expansion and switching functions between a PCIe upstream port and two downstream ports or peer-to-peer switching between downstream ports.
Renesas provides a recommended PCB layout guide in their application note (APN) documents, which can be found on their website. The guide includes thermal vias, heat sink recommendations, and PCB layer stack-up suggestions to ensure optimal thermal performance.
Renesas recommends a specific power sequencing scheme to ensure proper device operation. This information can be found in the device's user manual or application notes. Typically, the sequence involves powering up the VCCIO, VCC, and VREF pins in a specific order, with a delay between each power-up event.
Renesas recommends using high-quality, low-ESR decoupling capacitors with a value of 0.1 μF to 1 μF, placed as close as possible to the device's power pins. The capacitor selection should be based on the device's operating frequency, power consumption, and PCB layout.
Renesas provides guidelines for JTAG interface testing in their device documentation. Engineers can use JTAG controllers and software tools, such as Renesas' own E1 emulator, to access the device's internal registers and perform testing. It's essential to follow the recommended JTAG signal timing and voltage levels to avoid damaging the device.
Renesas provides thermal design guidelines in their application notes, including recommendations for heat sink selection, thermal interface materials, and PCB design considerations. Engineers should also consider the device's junction temperature (Tj) and ensure that it remains within the specified operating range to prevent thermal damage.
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89HPES3T3ZBBCG8 Overview
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