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Part Manufacturer: ST Microelectronics

Part Description: Quad D-type register (3 state)

Part Details:

M74HC173 QUAD D-TYPE REGISTER (3 STATE) s HIGH SPEED: fMAX = 84MHz (TYP.) at VCC = 6V s LOW POWER DISSIPATION:ICC = 4µA(MAX.) at TA=25°C s HIGH NOISE IMMUNITY:VNIH = VNIL = 28 % VCC (MIN.) s SYMMETRICAL OUTPUT IMPEDANCE: DIP SOP TSSOP |IOH| = IOL =6mA (MIN) s BALANCED PROPAGATION DELAYS:tPLH tPHL ORDER CODES s WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R VCC (OPR) = 2V to 6V DIP M74HC173B1R s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 173 SOP M74HC173M1R M74HC173RM13TR TSSOP M74HC173TTR DESCRIPTIONThe M74HC173 is an high speed CMOS QUAD when both clock control inputs (G1 and G2) are D-TYPE REGISTER (3-STATE) fabricated with held low. silicon gate C2MOS technology. The reset feature is asynchronous and active This device is composed of a four-bit register high. The stored data are provided on each output including D-TYPE flip-flops and 3-state buffers. only when both output control inputs (M and N) are The four flip-flops are controlled by a common held low, otherwise the outputs go to the clock input (CLOCK) and a common reset input high-impedance state. (CLEAR). Signals applied to the data inputs (D1 - All inputs are equipped with protection circuits D4) are stored at the respective flip-flops on the against static discharge and transient excess positive going transition of the clock input, only voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS

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