Description:Provides 48 PCIe lanes and 12 ports of high-performance, deterministic system interconnect switching. All ports receive full line rate, non-blocking throughput for multiple traffic flows regardless of switch loading.
Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) which includes thermal design considerations, such as thermal vias, copper pours, and component placement.
Renesas recommends a specific power sequencing scheme in their datasheet, which involves powering up the VCC and VDD pins in a specific order. Additionally, they provide a power sequencing diagram in their application note (APL-AN-1202).
Renesas recommends using high-frequency, low-ESR capacitors (e.g., 100nF, 1uF, and 10uF) with a voltage rating of 2.5V or higher, placed as close as possible to the power pins. The exact values and placement depend on the specific application and PCB design.
The thermal shutdown feature is enabled by default. When the junction temperature exceeds 150°C, the device will shut down. To handle this, designers should implement a thermal monitoring and shutdown circuit, and ensure proper thermal design and cooling mechanisms are in place.
The recommended operating frequency range for the 89HPES48H12ZABRI is 100 kHz to 1 MHz, although it can operate up to 2 MHz with reduced performance. The specific frequency range depends on the application and system requirements.
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89HPES48H12ZABRI Overview
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