USB3500 Datasheet, PDF (1/45 Pages) SMSC Corporation – Hi-Speed USB Host, Device or OTG PHY With UTMI+ Interface

USB3500
Hi-Speed USB Host, Device or OTG PHY
With UTMI+ Interface
Highlights
• USB-IF “Hi-Speed” certified to the Universal Serial
Bus Specification Rev 2.0
• Interface compliant with the UTMI+ Specification,
Revision 1.0
• Includes full support for the optional On-The-Go
(OTG) protocol detailed in the On-The-Go Sup-
plement Revision 1.0a specification
• Functional as a host, device or OTG PHY
• Supports HS, FS, and LS data rates
• Supports FS pre-amble for FS hubs with a LS
device attached (UTMI+ Level 3)
• Supports HS SOF and LS keep alive pulse.
• Supports Host Negotiation Protocol (HNP) and
Session Request protocol (SRP)
• Internal comparators support OTG monitoring of
VBUS levels
• Low Latency Hi-Speed Receiver (43 Hi-Speed
clocks Max)
• Internal 1.8 volt regulators allow operation from a
single 3.3 volt supply
• Internal short circuit protection of ID, DP and DM
lines to VBUS or ground
• Integrated 24MHz Crystal Oscillator supports
either crystal operation or 24MHz external clock
input
• Internal PLL for 480MHz Hi-Speed USB operation
• Supports USB 2.0 and legacy USB 1.1 devices
• 55mA Unconfigured Current (typical) - ideal for
bus powered applications
• 83uA suspend current (typical) - ideal for battery
powered applications
• Full Commercial operating temperature range
from 0C to +70C
• 56-Pin, QFN RoHS compliant package
(8 x 8 x 0.90 mm height)
Functional Overview
The USB3500 is a highly integrated USB transceiver
system. It contains a complete USB 2.0 PHY with the
UTMI+ industry standard interface to support fast time
to market for a USB controller. The USB3500 is com-
posed of the functional blocks shown in the figure
below.
USB3500 Block Diagram
VDD3.3
XCVRSEL[1:0]
TERMSEL
TXREADY
SUSPENDN
TXVALID
RESET
CHRGVBUS
RXACTIVE
OPMODE[1:0]
ID_DIG
IDPULLUP
CLKOUT
LINESTATE[1:0]
HOSTDISC
DISCHRGVBUS
SESSEND
DATA[7:0]
RXVALID
SESSVLD
DPPD
DMPD
RXERROR
VBUSVLD
Internal
Regulators
& POR
TX
Logic
RX
Logic
UTMI+
Digital
24 MHz
XTAL
XTAL &
PLL
HS XCVR
FS/LS
XCVR
USB3500
OTG
Module
VBUS
ID
VDD3.3
DP
DM
Resistors
Bias
Gen.
RBIAS
5V
Power
Supply
Mini-AB
USB
Connector
 2005 - 2016 Microchip Technology Inc.
DS00002103A-page 1