HMC974LC3CData SheetPIN CONFIGURATION AND FUNCTION DESCRIPTIONSINOCCEECCVRTVV16151413RT 112 ORBWIN 211 WOUTBHMC974LC3CTOP VIEW(Not to Scale)WIT 310 URBRB 49 VCCO5678PACKAGEIBASECCLELEEEVVVEENOTES -003 1. EXPOSED PAD. THE EXPOSED PAD MUST 863 BE CONNECTED TO VEE. 14 Figure 3. Pin Configuration Table 3. Pin Function Descriptions Pin No.MnemonicDescription 1 RT Termination Resistor for Reference Top. 2 WIN Analog Input Window. 3 WIT Common Mode Window for Termination Resistors. 4 RB Termination Resistor Return for Reference Bottom. 5, 16 VCCI Positive Supply Voltage Input Stage. 6 LE Inverting Latch Enable Input. 7 LE Noninverting Latch Enable Input. 8, 14 VEE Negative Power Supply 9, 13 VCCO Positive Supply Voltage Output Stage. 10 URB Underange Output. URB is asserted low when the analog input voltage is below the RB pin voltage. 11 WOUTB Window Output. WOUTB is asserted low when the analog input voltage is between the RB pin voltage and the RT pin voltage. 12 ORB Overrange output. ORB is asserted low when the analog input voltage range is above the RT pin voltage. 15 RTN ESD Protection Return. EPAD Exposed Pad. The exposed pad must be connected to VEE. Rev. E | Page 6 of 12 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS INTERFACE SCHEMATICS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER SEQUENCING APPLICATIONS INFORMATION EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE