Part # M74HC147 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: 10 to 4 line priority encoder

Part Details:

M74HC147 10 TO 4 LINE PRIORITY ENCODER s HIGH SPEED: tPD = 15ns (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 = 4mA (MIN) s BALANCED PROPAGATION DELAYS:tPLH tPHL ORDER CODES s WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R VCC (OPR) = 2V to 6V DIP M74HC147B1R s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 147 SOP M74HC147M1R M74HC147RM13TR TSSOP M74HC147TTR DESCRIPTIONThe M74HC147 is an high speed CMOS 10 TO 4 condition requires no input condition as zero is LINE PRIORITY ENCODER fabricated with encoded when all nine data lines are at high logic silicon gate C2MOS technology. level. All data inputs and outputs are active at the This device features priority encoding of the inputs low logic level. to ensure that only the highest order data line is All inputs are equipped with protection circuits encoded. Nine input lines are encoded to a four against static discharge and transient excess line BCD output. The implied decimal zero voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/10 M74HC147 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

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M74HC147.pdf Datasheet