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CY8C22645 Datasheet(PDF) 9 Page - Cypress Semiconductor |
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CY8C22645 Datasheet(HTML) 9 Page - Cypress Semiconductor |
9 / 39 page CY8C21345 CY8C22345 CY8C22545 Document Number: 001-43084 Rev. *Q Page 9 of 39 CY8C22545 44-pin TQFP Table 3. Pin Definitions Pin No. Type Pin Name Description Figure 4. Pin Diagram Digital Analog 1 I/O ML P2[5] Optional ADC External Vref 2 I/O ML P2[3] 3 I/O ML P2[1] 4 Power Vdd Supply Voltage 5 I/O ML P4[5] 6 I/O ML P4[3] 7 I/O ML P4[1] 8 Power Vss Ground Connection 9 I/O ML P3[7] 10 I/O ML P3[5] 11 I/O ML P3[3] 12 I/O ML P3[1] 13 I/O ML P1[7] I2C serial clock (SCL) 14 I/O ML P1[5] I2C serial data (SDA) 15 I/O ML P1[3] 16 I/O ML P1[1] Crystal (XTALin), I2C SCL, TC SCLK[4] 17 Power Vss Ground Connection 18 I/O MR P1[0] Crystal (XTALout), I2C SDA, TC SDATA[4 ] 19 I/O MR P1[2] 20 I/O MR P1[4] Optional external clock input (EXTCLK) 21 I/O MR P1[6] 22 I/O MR P3[0] 23 I/O MR P3[2] 24 I/O MR P3[4] 25 I/O MR P3[6] 26 Input XRES Active High Pin Reset with Internal Pull Down 27 I/O MR P4[0] 28 I/O MR P4[2] 29 I/O MR P4[4] 30 Power Vss Ground Connection 31 I/O MR P2[0] 32 I/O MR P2[2] 33 I/O MR P2[4] 34 I/O I, MR P2[6] To Compare Column 1 35 I/O I, MR P0[0] 36 I/O I, MR P0[2] 37 I/O I, MR P0[4] 38 I/O I, MR P0[6] 39 Power Vdd Supply Voltage 40 I/O I, MR P0[7] Integration Capacitor for MR 41 I/O I, ML P0[5] Integration Capacitor for ML 42 I/O I, ML P0[3] 43 I/O I, ML P0[1] 44 I/O I, ML P2[7] To Compare Column 0 LEGEND: A = Analog, I = Input, O = Output, M=Analog Mux input, MR= Analog Mux right input, ML= Analog Mux left input. ADC_Ext_Vref, ML, P2[5] ML, P2[3] ML, P2[1] Vdd TQFP 1 2 3 4 5 6 7 8 24 23 31 30 29 28 27 26 P2[0], MR XRES P2[4], MR 11 10 9 25 32 33 ML, P4[5] ML, P4[3] ML, P4[1] ML, P3[7] ML, P3[5] ML, P3[3] P3[2], MR P3[4], MR P3[6], MR P4[0], MR P4[2], MR P4[4], MR Vss P2[2], MR Vss |
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