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SAF1760BE: Hi-Speed Universal Serial Bus host controller for embedded applications

The SAF1760 is a Hi-Speed Universal Serial Bus (USB) host controller with a generic processor interface. It integrates one Enhanced Host Controller Interface (EHCI), one Transaction Translator (TT) and three transceivers. The host controller portion of the SAF1760 and the three transceivers comply to Universal Serial Bus Specification Rev. 2.0. The EHCI portion of the SAF1760 is adapted from Enhanced Host Controller Interface Specification for Universal Serial Bus Rev. 1.0.

The integrated high-performance Hi-Speed USB transceivers enable the SAF1760 to handle all Hi-Speed USB transfer speed modes: high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s). The three downstream ports allow simultaneous connection of three devices at different speeds (high-speed, full-speed and low-speed).

The generic processor interface allows the SAF1760 to be connected to various processors as a memory-mapped resource. The SAF1760 is a slave host: it does not require bus-mastering capabilities of the host system bus. The interface can be configured, ensuring compatibility with a variety of processors. Data transfer can be performed on 16 bits or 32 bits, using Programmed Input/Output (PIO) or Direct Memory Access (DMA) with major control signals configurable as active LOW or active HIGH.

Integration of the TT allows connection to full-speed and low-speed devices, without the need of integrating Open Host Controller Interface (OHCI) or Universal Host Controller Interface (UHCI). Instead of dealing with two sets of software drivers, EHCI and OHCI or UHCI, you need to deal with only one set, EHCI, that dramatically reduces software complexity and IC cost.

sot425-1_3d

The SAF1760 can be used to implement a Hi-Speed USB compliant host controller connected to most of the CPUs present in the market today, having a generic processor interface with de-multiplexed address and data bus. This is because of the efficient slave-type interface of the SAF1760.

This NXP® USB product can only be used in automotive applications. Inclusion or use of the NXP USB products in other than automotive applications is not permitted and for your company’s own risk. Your company agrees to full indemnify NXP for any damages resulting from such inclusion or use.

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Product ID	Package Description	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	RoHS / Pb Free / RHF	LeadFree Conversion Date	MSL	MSL LF
SAF1760BE/V1		SOT425-1	HTQFP-HLQFP-LQFP-MSQFP-WAVE	Tray, Bakeable, Multiple in Drypack	Active	SAF1760BE/V1,557 (9352 879 54557)	Standard Marking	SAF1760BE/V1		Always Pb-free	3	3
				Reel 13" Q1/T1 in Drypack	Active	SAF1760BE/V1,518 (9352 879 54518)	Standard Marking	SAF1760BE/V1		Always Pb-free	3	3