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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TUSB217AI датащи(PDF) 5 Page - Texas Instruments |
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TUSB217AI датащи(HTML) 5 Page - Texas Instruments |
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5 / 31 page  Table 6-1. Pin Functions (continued) PIN (RWB) I/O INTERNAL PULLUP/PULLDOWN DESCRIPTION NAME NO. (RWB) RSTN 5 I 500 kΩ PU 1.8 MΩ PD Device disable/enable. Low – Device is at reset and in shutdown, and High - Normal operation. Recommend 0.1-µF external capacitor to GND to ensure clean power on reset if not driven. If the pin is driven, it must be held low until the supply voltage for the device reaches within specifications. SCL(1)/CD 4 I/O When RSTN asserted there is a 500 kΩ PD In I2C mode: I2C clock pin [I2C address = 0x2C]. Non I2C mode: After reset: Output CD. Flag indicating that a USB device is attached (connection detected). Asserted from an unconnected state upon detection of DP or DM pull-up resistor. De-asserted upon detection of disconnect. (1) Pull-up resistors for SDA and SCL pins in I2C mode should be RPull-up (depending on I2C bus voltage). If both SDA and SCL are pulled up at power-up the device enters into I2C mode. (2) Pull-down and pull-up resistors for RX_SEN pin must follow RRXSEN1 and RRXSEN2 resistor recommendations in non I2C mode. www.ti.com TUSB217A SLLSFK5 – JUNE 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 5 Product Folder Links: TUSB217A |
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