VCC1VDD2D13D24D35R16R27R38D49R410M011M112M213DCE/DTE#14INVERT15D4/R4A16R3B17R3A18R2B19R2A20D3/R1B21D3/R1A22D2B23D2A24D1B25D1A26GND27VEE28