74VHC139 PDF File ( Datasheet )

74VHC139 DUAL 2 TO 4 DECODER, DEMULTIPLEXER s HIGH SPEED: tPD = 5.0 ns (TYP.) at VCC = 5V s LOW POWER DISSIPATION: ICC = 4 A (MAX.) at TA=25°C s HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) )s POWER DOWN PROTECTION ON INPUTS t(ss SYMMETRICAL OUTPUT IMPEDANCE: c|IOH| = IOL = 8 mA (MIN) us BALANCED PROPAGATION DELAYS: dtPLH tPHL ro )s OPERATING VOLTAGE RANGE: P t(sVCC(OPR) = 2V to 5.5V s PIN AND FUNCTION COMPATIBLE WITH lete uc74 SERIES 139 ds IMPROVED LATCH-UP IMMUNITY bso ProDESCRI

74VHC139 Dual 2-to-4 Decoder, Demultiplexer November 1992 Revised April 1999 74VHC139 Dual 2-to-4 Decoder, Demultiplexer General Description The VHC139 is an advanced high speed CMOS Dual 2-to4 Decoder, Demultiplexer fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The active LOW enable input can be used for gating or it can be used as a data input for demultiplexing