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ST8004CD bảng dữ liệu(PDF) 3 Page - STMicroelectronics |
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ST8004CD bảng dữ liệu(HTML) 3 Page - STMicroelectronics |
3 / 19 page ST8004 3/19 PIN CONFIGURATION PIN DESCRIPTION PlN N° SYMBOL NAME AND FUNCTION 1 CLKDIV1 Control of CLK Frequency 2 CLKDIV2 Control of CLK Frequency 35V/3V VCC selection pin. 4 PGND Power Ground for Step-Up converter 5 C1+ External Cap. for Step-Up converter 6 VDDP Power Supply for Step-Up converter 7 C1- External Cap. Step-Up converter 8 VUP Output of Step-Up converter 9PRES Card Presence Input (Active Low) 10 PRES Card Presence Input (Active High) 11 I/O Data Line to and from card (C7) (internal 10k Ω pull-up resistor connected to V CC) 12 AUX2 Auxiliary line to and from card (C8) (internal 10k Ω pull-up resistor connected to V CC) 13 AUX1 Auxiliary line to and from card (C4) (internal 10k Ω pull-up resistor connected to V CC) 14 CGND Ground for card signal (C5) 15 CLK Clock to card (C3) 16 RST Card Reset (C2) 17 VCC Supply Voltage for the card (C1) 18 VTHSEL Deactivation threshold selector pin (under voltage lock-out) 19 CMDVCC Start activation sequence input (Active Low) 20 RSTIN Card Reset Input from MCU 21 VDD Supply Voltage 22 GND Ground 23 OFF Interrupt to MCU (active Low) 24 XTAL1 Crystal or external clock input 25 XTAL2 Crystal connection (leave this pin open if external clock is used) 26 I/OUC Data Line to and from MCU (internal 10k Ω pull-up resistor connected to V DD) 27 AUX1UC Auxiliary line to and from MCU (internal 10k Ω pull-up resistor connected to V DD) 28 AUX2UC Auxiliary line to and from MCU (internal 10k Ω pull-up resistor connected to V DD) |
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