STUSB02E USB Transceiver Features ■ Compliant to USB v2.0 for Full-speed (12Mb/s) and Low-speed (1.5Mbps) Operation ■ ±14KV on D+, D– Lines; ±5KV on VBUS ■ ESD Compliant To IEC-61000-4.2 (Level 3) ■ Separate I/o Supply With Operation Down To 1.6V ■ Integrated Speed Select Termination Supply ■ Very Low Power Consumption To Meet USB ‘suspend’ Current Requirements ■ Small QFN16 Lead Free Package ■ No Power Supply Sequencing Requirements ■ Software Controlled Re-enumeration QFN16(3mmx3mm) transceiver has an integrated voltage detector to detect the presence of the VBUS voltage. The transceiver also supports Sharing mode when VBUS is not present, which allows the D+/ D– lines to be shared with other serial protocols. Description The STUSB02E is a single chip transceiver that complies with the physical layer specifications of the Universal Serial Bus (USB) v2.0 standard. It has an integrated 5V to 3.3V regulator which allows direct powering from the VBUS. The It supports both full-speed (12Mbps) and lowspeed (1.5Mbps) operation. It is also designed to operate down to 1.6V so that it is compatible with lower system voltages of most portable systems, which include PDAs, MP3 Player and Cell phones to mention few. Order Codes Type Package Comments STUSB02EQR QFN16 (3mm x 3mm) 3000 parts per reel Typical Application October 2005 Rev. 1 1/20 www.st.com 20 STUSB02E Contents 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Functional Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 Package Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 9 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2/20 STUSB02E 1 1 Pin Configuration Pin Configuration Figure 1. Pin Connections (Top View ) Table 1. Pin Description PlN N° SYMBOL 0 N.C. I/O 15 VIF I 1 SPD I 2 RCV O 3 VP I/O 4 VM I/O 5 6 7 CON GND SUS I 9 OE# I 10, 11 D-, D+ I/O 12 VTRM O 13 VPU O 14 VBUS I 8 N.C. 16 VBUSDET I O NAME AND FUNCTION Not Connected. System Interface Supply Voltage (1.6V to 3.6V). (return) Provides reference supply voltage for system I/O interface signals. Edge Rate Control. A logic HIGH operates at edge rates for “fullspeed” operation. A logic LOW operates edge rates for “lowspeed” operation. Receive Data. Output for USB differential data. (see Table 2) If OE# = H, VP = Receiver output (+) If OE# = L, VP = Driver input (+) (see Table 2) If OE# = H, VM = Receiver output (-) If OE# = L, VM = Driver input (-) (see Table 2) CONNECT (input). Controls state of VPU. Refer to VPU pin description for detail. Ground Reference Suspend (active-high). Turns off internal circuits to reduce supply current. Output Enable (active-low). Enables transceiver data transmission onto the bus. When not active, the transceiver is in the receive mode. (see Table 2) Differential data lines that conform to the USB v2.0 standard. (see Table 2) 3.3V Reference Supply Output. Requires a 1.0µF decoupling capacitor for stability. Pull-up Supply Voltage Output. Used to connect 1.5K pull-up speed detect resistor. If CON = 0, VPU is high impedance. If CON = 1, VPU = 3.3V ±10%. USB Bus Supply Voltage (4V to 5.5V). Supplies power to the USB transceiver and internal circuitry. Not connected. VBUS indicator output. When VBUS > 2.9V, VBUSDET = High and when < 2.2V, VBUDET = Low. 3/20 STUSB02E 2 Functional Tables 2 Functional Tables Table 2. Function Selection SUS OE# D+, D- RCV VP/VM L L H H L H L H Driving Receiving Hi-Z Hi-Z Active Active L L Active Active Not Active Active FUNCTION Normal transmit mode Normal receive mode Low power state Receiving during suspend (low power state) (1) (1) During suspend VP and VM are active in order to detect out of band signalling conditions Table 3. Truth Table During Normal Mode OE# = L INPUT OUTPUT VP VM D+ D- RCV L L H H L H L H L L H X L H L X X L H X RESULT SE0 Logic Low Logic High Undefined OE# = H INPUT D+ D- VP VM RCV L L H H L H L H L L H X L H L X X L H X X = Undefined 4/20 OUTPUT RESULT SE0 Logic Low Logic High Undefined STUSB02E 3 3 Maximum Ratings Maximum Ratings Table 4. Absolute Maximum Ratings Symbol VBUS Parameter Value Unit 6 -0.5 to 4.6 ± 50 V V mA ± 15 mA mA °C V+ IO Supply Voltage All other Inputs Output Current (D+, D-) IO Output Current (all others) II ESD Input Current D+, D-, HBM (Note 3) VBUS (Note 3) TSTG All other pins (Note 3) Storage Temperature Range ± 50 ± 14 ±5 ±2 -65 to + 150 TOPR Operating Temperature Range -40 to + 85 KV °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional Operation under these conditions is not implied. Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. Table 5. Symbol RthJA Thermal Data Parameter Thermal Resistance Junction-Ambient Value Unit 59 °C/W 5/20 STUSB02E 4 Electrical Characteristics 4 Electrical Characteristics Table 6. Symbol VBUS DC Electrical Characteristics (System and USB Interface) (VIF = 3.6V, VBUS = 5V unless otherwise noted; TA = 25°C, specifications over temperature, -40 to 85°C) Parameter USB Supply Voltage VIF System I/F Supply Voltage VIL Low Level Input Voltage (Note 4) VIH High Level Input Voltage (Note 4) Low Level Output Voltage (Note 4) High Level Output Voltage (Note 4) Input Leakage Current (Note 4) VOL VOH IIL Test Conditions Min. Typ. Max. Unit 4 5.5 V 1.6 3.6 0.15VIF V 0.85VIF V V IOL = 20µA 0 100 mV IOH = -20µA VIF-100 VIF mV -5 5 5 5 µA 650 µA IVPULEAK VPU Leakage Current D+, D- are idle, OE# = SUS = 0 D+, D- are idle, OE# = SUS = 1 D+, D- active, CLOAD = 50pF, SPD = 1, f = 6MHz, (Note 5) D+, D- active, CLOAD = 600pF, SPD = 0, f = 750KHz, (Note 5) D+, D- are idle, VBUS = 5.25V Suspend Mode (SUS = 1), OE# = 1, SPD = 1 D+, D- are idle, VBUS = 5.25V SPD = 1, OE# = SUS = 0 D+, D- are idle, VBUS = 5.25V OE# = SUS = SPD = 0 D+, D- are idle, VBUS = 5.25V OE# = 1, SUS = SPD = 0 D+, D- active, VBUS = 5.25V CLOAD = 50pF, SPD = 1, f = 6 MHz OE# = SUS = 0 (Note 5) D+, D- active, VBUS = 5.25V CLOAD = 600pF, f = 750 KHz, OE# = SUS = SPD = 0 (Note 5) CON = 0, VPU = 0V -5 5 µA IVIFLEAK VIF Leakage Current VIF = 3.6V, VBUS = 0V -5 5 µA ITERM = 200µA, VBUS = 4 to 5.25V 3 3.6 V ITERM = 10mA, VBUS = 4 to 5.25V 7 11 W IIF IBUS VPU RSW VIF Supply Current (Note 7) VBUS Supply Current Pull-Up Output Voltage VPU Internal Switch Resistance 75 200 µA 5 mA 700 µA 350 10 mA 5 9 Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. Note 4. Specification applies to the following pins: SUS, SPD, RCV, CON, VP, VM, OE#, VBUSDET. Note 5. Characterized specification(s), but not production tested. Note 6. All AC parameters guaranteed by design but not production tested. Note 7. RCV = NO LOADED 6/20 STUSB02E Table 7. Symbol VBUS VIF 4 Electrical Characteristics DC Electrical Characteristics (System and USB Interface) (VIF = 3.6V, VBUS = 5V unless otherwise noted; TA = 25°C) Parameter Test Conditions USB Supply Voltage System I/F Supply Voltage Min. Typ. 4 5.5 V 3.6 0.15VIF V Low Level Input Voltage (Note 4) High Level Input Voltage 0.85VIF VIH (Note 4) Low Level Output Voltage IOL = 20µA VOL (Note 4) High Level Output Voltage IOH = 20µA VOH 0.9VIF (Note 4) IIL Input Leakage Current (Note 4) -5 D+, D- are idle, OE# = SUS = 0 D+, D- active, CLOAD = 50pF, VIF Supply Current (Note 7) IIF SPD = 1, f = 6MHz, (Note 5) D+, D- active, CLOAD = 50pF, SPD = 0, f = 750KHz, (Note 5) D+, D- are idle, VBUS = 5.25V Suspend Mode (SUS = 1) D+, D- are idle, VBUS = 5.25V SPD = 1, OE# = SUS = 0 D+, D- are idle, VBUS = 5.25V OE# = SUS = SPD = 0 D+, D- are idle, VBUS = 5.25V VBUS Supply Current IBUS OE# = 1, SUS = SPD = 0 D+, D- active, VBUS = 5.25V CLOAD = 50pF, SPD = 1, f = 6 MHz OE# = SUS = 0 (Note 5) D+, D- active, VBUS = 5.25V CLOAD = 600pF, f = 750 KHz, OE# = SUS = SPD = 0 (Note 5) CON = 1, VPU = 0V IVPULEAK VPU Leakage Current -5 IVIFLEAK VIF Leakage Current VIF = 3.6V, VBUS = 0V -5 VPU ITERM = 200µA, VBUS = 4 to 5.25V Pull-Up Output Voltage VPU Internal Switch Resistance ITERM = 10mA, VBUS = 4 to 5.25V Unit 1.6 VIL RSW Max. V V 0.1 V V 5 5 450 µA µA 50 70 150 3.0 µA mA 300 µA 150 7.3 mA 3.6 5 µA 5 µA 3.3 V 9 W Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. Note 4. Specification applies to the following pins: SUS, SPD, RCV, CON, VP, VM, OE#, VBUSDET. Note 5. Characterized specification(s), but not production tested. Note 6. All AC parameters guaranteed by design but not production tested. Note 7. RCV = NO LOADED 7/20 STUSB02E 4 Electrical Characteristics Table 8. ESD Performance Symbol Parameter IEC-1000-4-2 (D+, D-) ESD IEC-1000-4-2 (VBUS only) Table 9. Symbol Test Conditions Parameter Test Conditions Hi-Z State Data Line Leakage VI = 0 to 3.3 V, SUS = 1 (Suspend Mode) VDI Differential Input Sensitivity |(D+) - (D-)| Differential Common Mode Includes VDI range VCM Range VSE Single Ended Receiver Threshold VCM = 0.8 V VRHYS Receiver Hysteresis RL = 1.5 KΩ at 3.6V (see test VOL Static Output Low circuit) RL = 15 KΩ at GND (see test VOH Static Output High circuit) CI Transceiver Capacitance Pin to GND ZDRV Driver Output Resistance Steady state drive Symbol 8/20 Max. ±8 ±6 ±5 ±5 Unit KV Min. Typ. -10 Max. Unit 10 µA 0.2 V 0.8 2.5 0.8 2.0 100 2.8 V mV 0.3 V 3.6 V 25 9 V pF 22 W Max. Unit 2 µA DC Electrical Characteristics (Transceiver) (VIF = 3.6V, VBUS = 5V unless otherwise noted; TA = 25°C) Parameter Test Conditions Hi-Z State Data Line Leakage VI = 0 to 3.3 V, SUS = 1 ILO (Suspend Mode) VDI Differential Input Sensitivity |(D+) - (D-)| Differential Common Mode Includes VDI range VCM Range VSE Single Ended Receiver Threshold VRHYS Receiver Hysteresis VCM = 0.8 V RL = 1.5 KΩ at 3.6V VOL Static Output Low (see Test Circuits) RL = 15 KΩ at GND VOH Static Output High (see Test Circuits) CI Pin to GND Transceiver Capacitance (3) ZDRV Driver Output Resistance Steady state drive (3) Pins D+, D- Typ. DC Electrical Characteristics (Transceiver) (VIF = 3.6V, VBUS = 5V unless otherwise noted; TA = 25°C, specifications over temperature, -40 to 85°C) ILO Table 10. Min. Air Discharge (10 pulses) Contact Discharge (10 pulses) Air Discharge (10 pulses) Contact Discharge (10 pulses) Min. Typ. -2 0.2 V 0.8 2.5 V 0.8 2 V 50 2.8 mV 0.3 V 3.6 V 25 pF 16 W STUSB02E Table 11. 4 Electrical Characteristics AC Electrical Characteristics (VIF = 3.6V, VBUS = 5V unless otherwise noted; TA = 25°C.) (Note 6) Symbol Parameter TR Transition Rise Time (LOW SPEED) TF Transition Fall Time (LOW SPEED) TR, TF VCRS TR TF TR, TF VCRS tPVZ Test Conditions CL = 50pF (Figure 3) CL = 50pF (Figure 3) (TR, TF) tPDZ tPZV Driver Tri-State to Receive Delay Max. 75 300 75 CL = 600pF Figure 2 LOW SPEED (Figure 2) Receiver Tri-State to Transmit Delay FULL SPEED (Figure 2) OE# TO RCVR Tri-State Delay Figure 2 tPZD Typ. CL = 600pF Rise/Fall Time Matching (LOW (TR, TF) SPEED) Output Signal Crossover Voltage (LOW SPEED) Transition Rise Time (FULL SPEED) CL = 50pF (Figure 3) Transition Fall Time (FULL SPEED) CL = 50pF (Figure 3) Rise/Fall Time Matching (FULL SPEED) Output Signal Crossover Voltage (FULL SPEED) OE# TO RCVR Tri-State Delay Min. 300 Unit ns ns 80 125 % 1.3 2 V 4 20 ns 4 20 ns 90 111.11 % 1.3 2 V 3 ns 13 32 ns 6 ns Figure 2 27 ns tPLH tPHL VP, VM to D+, D- Propagation Delay Figure 5 tPLH tPHL D+, D- to RCV Propagation Delay Figure 4 tPLH tPHL D+, D- to VP, VM Propagation Delay Figure 4 16 20 ns 13 20 ns 8 20 ns Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. Note 4. Specification applies to the following pins: SUS, SPD, RCV, CON, RCV, VP, VM, OE#. Note 5. Characterized specification(s), but not production tested. Note 6. All AC parameters guaranteed by design but not production tested. 9/20 5 Timing Diagram 5 Timing Diagram Figure 2. Enable and Disable Times Figure 3. Rise and Fall Times 10/20 STUSB02E STUSB02E Figure 4. Receiver Propagation Delay Figure 5. Driver Propagation Delay (CL = 50pF) 5 Timing Diagram Minimum Timing LS and maximum timing FS 11/20 5 Timing Diagram Figure 6. Enable and Disable Time Circuit Switch = GND for tPZH and tPHZ; V = VTRM for tPZL and tPLZ 12/20 STUSB02E STUSB02E 6 6 Test Circuits Test Circuits Figure 7. Load for VP, VM, RCV Figure 8. Load for D+, D- 13/20 6 Test Circuits Figure 9. 14/20 Functional Diagram STUSB02E STUSB02E 7 7 Functional Description Functional Description The STUSB02E is designed to provide USB connectivity in portable systems where available system supply voltages are not able to satisfy USB requirements. The STUSB02E can operate down to supply voltages of 1.6V and still meet USB physical layer specifications. As shown in the circuit above, the STUSB02E takes advantage of the USB supply voltage, VBUS, to operate the transceiver. The system voltage, VIF, is used to set the reference voltage used by the digital I/O lines interfacing to the system controller. Internal circuitry provides translation between the USB and system voltage domains. VIF will typically be the main supply voltage rail for the controller. In addition, a 3.3V, 10% termination supply voltage, VPU, is provided to support speed selection. VPU can be disabled or enabled under software control via the CON input. This allows for software-controlled connect or disconnect states. A 1.5K resistor is required to be connected between this pin and the D+ or D– lines to respectively specify full speed or low speed operation. The use of ESD transient protection devices is not required for operation, but is recommended. 15/20 8 Package Mechanical Data 8 STUSB02E Package Mechanical Data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 16/20 STUSB02E 8 Package Mechanical Data QFN16 (3mmx3mm) MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. 0.80 0.90 1.00 0.032 0.035 0.039 A1 0.02 0.05 0.001 0.002 A3 0.20 A b 0.18 D D2 0.30 0.007 0.010 3.00 1.55 E E2 0.25 0.008 1.70 0.118 1.80 0.061 0.067 3.00 1.55 1.70 1.80 0.061 0.067 0.50 0.020 K 0.20 0.008 0.30 r 0.09 E 0.40 0.071 0.118 e L 0.012 0.50 0.012 0.016 0.071 0.020 0.006 E2 A K A1 e D2 D b A3 K L r This drawing is not to scale 17/20 STUSB02E 8 Package Mechanical Data Tape & Reel QFNxx/DFNxx (3x3) MECHANICAL DATA mm. inch DIM. MIN. TYP A MIN. TYP. 330 13.2 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 18/20 MAX. 0.504 0.519 18.4 0.724 Ao 3.3 0.130 Bo 3.3 0.130 Ko 1.1 0.043 Po 4 0.157 P 8 0.315 STUSB02E 9 9 Revision History Revision History Date Revision 19-Oct-2005 1 Description of Change First Release. 19/20 STUSB02E 9 Revision History Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. 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