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ST8024 Fiches technique(PDF) 3 Page - STMicroelectronics |
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ST8024 Fiches technique(HTML) 3 Page - STMicroelectronics |
3 / 23 page ST8024 3/23 Figure 2: Pin Configuration Table 2: 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 11k Ω pull-up resistor connected to VCC) 12 AUX2 Auxiliary line to and from card (C8) (internal 11k Ω pull-up resistor connected to VCC) 13 AUX1 Auxiliary line to and from card (C4) (internal 11k Ω pull-up resistor connected to VCC) 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 PORADJ 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 MCU data I/O line (internal 11k Ω pull-up resistor connected to VDD) 27 AUX1UC Non-inverting Receiver Input (internal 11k Ω pull-up resistor connected to VDD) 28 AUX2UC Non-inverting Receiver Input (internal 11k Ω pull-up resistor connected to VDD) |
Numéro de pièce similaire - ST8024 |
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Description similaire - ST8024 |
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