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XE8805AMI028LF Datasheet(PDF) 8 Page - Semtech Corporation |
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XE8805AMI028LF Datasheet(HTML) 8 Page - Semtech Corporation |
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8 / 156 page  © Semtech 2006 www.semtech.com 1-6 XE8805/05A Package pin name Package pin name 21 PB(4) 53 DAS_AI_M 22 PB(5) 54 DAS_AO 23 PB(6) 55 VBAT 24 PB(7) 56 VSS 25 DAB_R_P 57 VSS_REG 26 DAB_R_M 58 VREG 27 DAB_OUT 59 NC 28 DAB_AO_P 60 VMULT 29 DAB_AO_M 61 RESET 30 DAB_AI_P 62 OSCOUT 31 DAB_AI_M 63 OSCIN 32 NC 64 NC Table 1-1. Bonding plan of the LQFP-64 package (LQFP 64L 10x10mm thick 1.6 mm) 1.3 Pin assignment The table below gives a short description of the different pin assignments. Pin Assignment VBAT Positive power supply VSS VSS_REG Negative power supply VREG Connection for the mandatory external capacitor of the voltage regulator VPP/TEST High voltage supply for flash memory programming (NC in ROM versions) RESET Resets the circuit when the voltage is high OSCIN/OSCOUT Quartz crystal connections, also used for flash memory programming PA(7:0) Parallel input port A pins PB(7:0) Parallel I/O port B pins PC(7:0) Parallel I/O port C pins AC_A(7:0) Acquisition chain input pins AC_R(3:0) Acquisition chain reference pins VMULT Connection for the external capacitor if VBAT is below 3V DAB_OUT Bias D/A output DAB_R_x Bias D/A reference (x=P: plus, x=M: minus) DAB_Ax_y Bias D/A amplifier IO (x=I: input, x=O: output ; y=P: plus, y=M: minus) DAS_OUT Signal D/A output DAS_AI_x Signal D/A amplifier inputs (x=P: plus, x=M: minus) DAS_AO Signal D/A amplifier output Table 1-2. Pin assignment Table 1-3 gives a more detailed pin map for the different pins. It also indicates the possible I/O configuration of these pins. The indications in blue bold are the configuration at start-up. The pins CNTx pins are possible counter inputs, PWMx are possible PWM outputs. |
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