전자부품 데이터시트 검색엔진 |
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TDA8004 데이터시트(PDF) 5 Page - NXP Semiconductors |
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TDA8004 데이터시트(HTML) 5 Page - NXP Semiconductors |
5 / 22 page 2004 May 10 5 Philips Semiconductors Product specification IC card interface TDA8004AT PINNING SYMBOL PIN I/O DESCRIPTION CLKDIV1 1 I control with CLKDIV2 for choosing CLK frequency CLKDIV2 2 I control with CLKDIV1 for choosing CLK frequency 5V/3V 3 I control signal for selecting VCC = 5 V (HIGH) or VCC = 3 V (LOW) PGND 4 supply power ground for step-up converter S2 5 I/O capacitance connection for step-up converter (a 100 nF capacitor with ESR < 100 m Ω must be connected between pins S1 and S2) VDDP 6 supply power supply voltage for step-up converter S1 7 I/O capacitance connection for step-up converter (a 100 nF capacitor with ESR < 100 m Ω must be connected between pins S1 and S2) VUP 8 O output of step-up converter (a 100 nF capacitor with ESR < 100 m Ω must be connected to PGND) PRES 9 I card presence contact input (active LOW); if PRES or PRES is true, then the card is considered as present PRES 10 I card presence contact input (active HIGH); if PRES or PRES is true, then the card is considered as present I/O 11 I/O data line to and from card (C7) (internal 10 k Ω pull-up resistor connected to VCC) AUX2 12 I/O auxiliary line to and from card (C8) (internal 10 k Ω pull-up resistor connected to VCC) AUX1 13 I/O auxiliary line to and from card (C4) (internal 10 k Ω pull-up resistor connected to VCC) CGND 14 supply ground for card signals CLK 15 O clock to card (C3) RST 16 O card reset (C2) VCC 17 O supply for card (C1); decouple to CGND with 2 × 100 nF or 1 × 100nF and 1 × 220 nF capacitors with ESR < 100 m Ω (with 220 nF, the noise margin on VCC will be higher) n.c. 18 − not connected CMDVCC 19 I start activation sequence input from microcontroller (active LOW) RSTIN 20 I card reset input from microcontroller (active HIGH) VDD 21 supply supply voltage GND 22 supply ground OFF 23 O NMOS interrupt to microcontroller (active LOW) with 20 k Ω internal pull-up resistor connected to VDD (refer section “Fault detection”) XTAL1 24 I crystal connection or input for external clock XTAL2 25 O crystal connection (leave open circuit if an external clock source is used) I/OUC 26 I/O microcontroller data I/O line (internal 10 k Ω pull-up resistor connected to VDD) AUX1UC 27 I/O auxiliary line to and from microcontroller (internal 10 k Ω pull-up resistor connected to VDD) AUX2UC 28 I/O auxiliary line to and from microcontroller (internal 10 k Ω pull-up resistor connected to VDD) |
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