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TC9328AF датащи(PDF) 10 Page - Toshiba Semiconductor |
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TC9328AF датащи(HTML) 10 Page - Toshiba Semiconductor |
10 / 84 page TC9328AF 2002-02-07 10 Pin No. Symbol Pin Name Function and Operation Remarks 53 Vreg Phase comparator constant voltage supply Phase comparator constant voltage supply. When the phase comparator output is tristate output, a constant voltage supply of 1.5 V (typ.) is output to the pin. For this output, connect a stabilizing capacitor (0.47 µF typ.). At constant voltage operation, the H level phase comparator output uses a constant voltage. Thus, when H level output current is required, Toshiba recommend using an external power supply. In such a case, externally apply 1.8~3.6 V to the pin. When the phase comparator output is output using the charge pump control signal (P/N), the pin becomes the VDD level. Then, the phase comparator output operates using the power supply voltage. 70 RESET Reset input Input pin for system reset signals. RESET takes place while at low level; at high level, the program starts from address “0”. Normally, if more than 0.9 V is supplied to VDD when the voltage is 0, the system is reset (power on reset). Accordingly, this pin should be set to high level during operation. Note: When the power-on reset function is enabled/disabled using the AI switch, reset by pin. 71 XOUT 72 XIN Crystal oscillator pin Crystal oscillator pins. A reference 75 kHz crystal oscillator is connected to the XIN and XOUT pins. (Ci = Co = 15 pF) The oscillator stops oscillating during CKSTP instruction execution. The VXT pin is the power supply for the crystal oscillator. A stabilizing capacitor (0.47 µF typ.) is connected. VDD VDD RfXT XOUT XIN ROUT Vreg |
Аналогичный номер детали - TC9328AF |
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Аналогичное описание - TC9328AF |
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