M74HCT139B1R中文资料意法半导体数据手册PDF规格书

DESCRIPTION

The M74HCT139 is an high speed CMOS DUAL TWO LINE TO FOUR LINE DECODER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology.

The active low enable input can be used for gating or as a data input for demultiplexing applications.

■ HIGH SPEED:

tPD = 17ns (TYP.) at VCC = 4.5V

■ LOW POWER DISSIPATION:

ICC = 4µA(MAX.) at TA=25°C

■ COMPATIBLE WITH TTL OUTPUTS :

VIH = 2V (MIN.) VIL = 0.8V (MAX)

■ SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 4mA (MIN)

■ BALANCED PROPAGATION DELAYS:

tPLH = tPHL

■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 139