S1R72V27B08H100

Controllers Overview

The S1R72V27 is a USB host/device controller LSI supporting the USB 2.0 high-speed mode. It allows a single USB port to operate as either a host or device via control switching. The component supports HS (480 Mbps), FS (12 Mbps), and LS (1.5 Mbps) transfer speeds. It includes built-in pull-down resistors for downstream ports and HS termination, eliminating external circuit requirements. The device features a 16-bit standard CPU bus interface with DMA support and variable voltage I/F ranging from 3.3 V to 1.8 V. Power supply systems include HVDD (3.3 V), CVDD (3.3 V to 1.8 V), and LVDD (1.8 V).

Controllers Feature Summary

• Supports HS, FS, and LS transfer modes with built-in termination resistors.
• Includes dedicated channels for control, bulk, interrupt, and isochronous transfers.
• Features a 16-bit CPU interface with DMA channel and Big/Little Endian support.
• Provides three power supply systems: HVDD, CVDD, and LVDD.

Controllers Applications

• USB host controllers requiring high-speed data transfer capabilities.
• USB device implementations needing integrated termination and power management.
• Embedded systems utilizing 16-bit CPU interfaces with DMA requirements.

Controllers Procurement Notes

Verify the specific package variant required, as the datasheet lists QFP14-80, PFBGA5UX60, and PFBGA8UX81 options. Confirm power sequencing requirements during design, specifically that LVDD must be powered before HVDD and CVDD. Ensure external protection circuits are included for VBUS terminals to handle potential surge voltages exceeding ratings.

Controllers Selection Notes

Select this component when both host and device functionalities are needed on a single port. Consider the available FIFO capacity of 4.5 kB per port for buffer allocation. Verify compatibility with the target CPU's endianness and bus mode settings. Check operating temperature range requirements against the guaranteed -40°C to 85°C specification.

Controllers Part Context

The S1R72V27 maintains high compatibility with the S1R72V17 model while adding support for USB host isochronous transfers. It belongs to the S1R72V series of USB 2.0 controllers manufactured by Epson ICs. The device integrates internal oscillator circuits and feedback resistors for clock generation.

Controllers Replacement Considerations

The S1R72V17 is noted as a compatible predecessor with similar functionality but lacks isochronous transfer support in host mode. Verify pinout and register compatibility if substituting between these models within the S1R72V series.