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TC9350BFN-T01 Datasheet(PDF) 3 Page - Toshiba Semiconductor |
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TC9350BFN-T01 Datasheet(HTML) 3 Page - Toshiba Semiconductor |
3 / 18 page TC9350BFN-T00,TC9350BFN-T01 2004-01-20 3 Pin Explanation Symbol Description VDD 5 V power supply. Guaranteed 4.35 to 5.25 V. GND Ground. XIN Connected to a 6-MHz ceramic resonator (ceramic resonator input pin). XOUT Connected to a 6-MHz ceramic resonator (ceramic resonator output pin). LED When the mouse is operating, the LED is always turned on by current drive with N-MOS turned on. The sink current is 50 mA maximum. Current drive is turned off in suspend mode. SW [1:3] Connected to the buttons (left, middle, and right) of the mouse. Pulled up to VDD by built-in resistors. To prevent chattering noise, the SW signals are not recognized until 15 ms after the first change in their state, allowing the signals to be sufficiently stabilized before entering the internal circuit. The pins are assigned to the mouse switches as follows: SW1: Left switch SW2: Middle switch SW3: Right switch SCK Serial port clock (output) pin. SDIO Serial data input and output pin. VCNT VDD control pin (for controlling the power supply for the ADNS-2610 optical mouse sensor) When the mouse is operating, the TC9350BFN supplies power to the optical mouse sensor via an external transistor by current drive with N-MOS turned on. In suspend mode, N-MOS is turned off, stopping power supply to the optical mouse sensor. NU No use pin. Please connect to GND. PT3A/B Encoder input pins. PT3A and PT3B are used as scroll pins. Data is sampled at intervals of 100 µs. The TC9350BFN-T00 enables the built-in pull-up resistors of the encoder input pins (PT3A, PT3B) when the mouse is operating. It is suitable for a mechanical encoder. (The pull-up resistors are disabled in suspend mode.) When using a mechanical encoder, it is recommended to use an external capacitor to reduce chattering and bouncing. In stable state, PT3A = PT3B. The TC9350BFN-T01 maintains the encoder input pins (PT3A, PT3B) always in high-impedance state. It is suitable for an optical encoder (phototransistor and LED). DP, DM It connects with the both-directions data bus line of USB. Note: Any short circuit (between adjacent pins or between a pin and VCC or ground) or misinsertion of pins may damage the IC chip. When designing an application and mounting the chip, be careful not to apply overvoltage or overcurrent to peripheral components. |
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