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Serial Model Railroad Control

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Part NumberDescription
THVD1500Half duplex RS-485, 500 Kbps, 4.5V - 5.5V supply, ±8kV electro-static discharge (ESD) protection, with receiver/driver enable, SOIC-8
PIC16F15345-I/SO4096W FLASH, 512B RAM, 256B EEPROM, SOIC-20
L78L05_SOT89Positive 100mA 30V Linear Regulator, Fixed Output 5V, SOT-89

SMRRC schematic

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SMRRC board layout

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