Part # M74HC148 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: 8 to 3 line priority encoder


Part Details:

M74HC148 8 TO 3 LINE PRIORITY ENCODER s HIGH SPEED: tPD = 16ns (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 M74HC148B1R s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 148 SOP M74HC148M1R M74HC148RM13TR TSSOP M74HC148TTR DESCRIPTIONThe M74HC148 is an high speed CMOS 8 TO 3 has been provided to allow octal expansion LINE PRIORITY ENCODER fabricated with without the need for external circuitry. Data inputs silicon gate C2MOS technology. are active at the low logic level. The M74HC148 encodes eight data lines to All inputs are equipped with protection circuits three-line (4-2-1) binary (octal). Cascading against static discharge and transient excess circuitry (enable input EI and enable output EO) voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/11 M74HC148 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL


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M74HC148.pdf Datasheet