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MC33560DTBR2 Datasheet(PDF) 11 Page - ON Semiconductor |
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MC33560DTBR2 Datasheet(HTML) 11 Page - ON Semiconductor |
11 / 26 page MC33560 http://onsemi.com 11 Table 1. PIN FUNCTION DESCRIPTION Pin Name/Function Type Symbol CARD INTERFACE 19 CRDC8 I/O General purpose input/output. It has the same behavior as CRDIO. It can be connected to the C8 pin of the card connector. CURRENT LIMIT AND THERMAL PROTECTION 1 PGND POWER This pin is the return path for the current flowing into Pin 22 (L1). It must be connected to CRDGND using appropriate grounding techniques. 12 CRDGND POWER This pin is the signal ground. It must be connected to the ground pin of the card connector. It is the reference level for all analog and digital signals. 13 CRDVCC POWER This pin connects to the VCC pin of the card connector. It is the reference level for a logic “1” of Pins 11, 14, 15, 16 and 19. 22 L1 POWER This pin connects to an external inductance for the DC−DC converter. Please refer to the description of the DC−DC converter functional block. 23 VBAT POWER This pin is connected to the supply voltage. Logic level “1” of Pins 2 to 10, 17, 18, 20 and 21 is referenced to VBAT. Operation of the MC33560 is inhibited when VBAT is lower than the minimum value. 24 ILIM POWER This pin can be connected to the PGND pin, or to a resistor connected to PGND, or left open, depending on the peak coil current needed to supply the card. PROGRAMMING AND STATUS FUNCTIONS The MC33560 features a programming interface and a status interface. Figure 20 shows how to enter and exit programming mode; Table 2 shows which pins are used to access the various functions. PWRON CS RDYMOD (in) IO RESET PROGRAM DATA VALUE PROGRAM DATA VALUE PROGRAM DATA VALUE ENTER PROGRAMMING MODE LATCH PROGRAM VALUE EXIT PROGRAMMING MODE Figure 20. MC33560 Programming Sequence Table 2. PIN USE FOR PROGRAMMING AND STATUS FUNCTIONS Programs CRDV- CC TO 3 V/5 V Select VCC ON/OFF Select Clock Input Program ASYCLKIN Divide Ratio Poll Card Status Poll CRDVCC Status RDYMOD (In/Out) Force to 0 READ Force to 0 Force to 0 READ READ CS (In) rising edge 0 rising edge rising edge 0 0 PWRON 0/1 0/1 Programs CRDVCC Programs CRDVCC 0 or Hi−z 1 RESET(In) Programs CLK Input/Divide Ratio NOT USED 0/1 0/1 NOT USED NOT USED I/O(In) Programs CLK Input/Divide Ratio NOT USED 0/1 0/1 NOT USED NOT USED |
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