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TUSB215-Q1 Datasheet(PDF) 3 Page - Texas Instruments |
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TUSB215-Q1 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 26 page  Thermal Pad 2 NC 3 NC 4 DC_BOOST/ENA_HS 5 D2P 6 D2M 9 D1M 10 D1P 11 SDA 12 VCC 13 SCL/CD Not to scale 3 TUSB215-Q1 www.ti.com SLLSF07 – SEPTEMBER 2017 Product Folder Links: TUSB215-Q1 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated (1) Pull-down and pull-up (to 3.3 V) resistors for DC_BOOST pins must be between 22 kΩ to 47 kΩ in non I2C mode. (2) Pull-up resistors for SDA and SCL pins in I2C mode should be 4.7 kΩ (5%). If both SDA and SCL are pulled up at reset the device enters into I2C mode. 5 Pin Configuration and Functions RGY Package 14 Pin (VQFN) Top View Pin Functions PIN I/O INTERNAL PULLUP/PULLDOWN DESCRIPTION NAME NO. EQ 1 I N/A USB High Speed AC boost select via external pull down resistor. Sampled upon de-assertion of RSTN. Does not recognize real time adjustments. See application section for details. Auto selects maximum AC boost level when left floating. NC 2, 3 N/A N/A Leave unconnected. DC_BOOST(1 )/ENA_HS 4 I/O In I2C mode: Reserved for TI test purpose. In non-I2C mode: At reset: 3-level input signal DC_BOOST. USB High Speed DC signal boost selection. H (pin is pulled high) – 80 mV M (pin is left floating) – 60 mV L (pin is pulled low) – 40 mV After reset: Output signal ENA_HS. Flag indicating that channel is in High Speed mode. Asserted upon: 1. Detection of USB-IF High Speed test fixture from an unconnected state followed by transmission of USB TEST_PACKET pattern. 2. Squelch detection following USB reset with a successful HS handshake [HS handshake is declared to be successful after single chirp J chirp K pair where each chirp is within 18 μs – 128 μs]. D2P 5 I/O N/A USB High Speed positive port. D2M 6 I/O N/A USB High Speed negative port. GND 7 PWR N/A Ground VREG 8 O N/A 1.8-V LDO output. Only enabled when operating in High Speed mode. Requires 0.1-µF external capacitor to GND to stabilize the core. D1M 9 I/O N/A USB High Speed negative port.. D1P 10 I/O N/A USB High Speed positive port. SDA(2) 11 I/O RSTN asserted: 500 k Ω PD I2C Mode: Bidirectional I2C data pin [I2C address = 0x2C]. In non I2C mode: Reserved for TI test purpose. |
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