SL74HCT139 Datasheet | System Logic Semiconductor

Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS The SL74HCT139A is identical in pinout to the LS/ALS139. The SL74HCT139A may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This device consists of two independent 1-of-4 decoders, each of which decodes a two-bit Address to one-of-four active-low outputs. Active-low Selects are provided to facilitate the demultiplexing and cascading functions. The demultiplexing function is acplished by using the Address inputs to select the desired device output, and utilizing the Select as a data input. - TTL/NMOS patible Input Levels - Outputs Directly Interface to CMOS, NMOS, and TTL - Operating Voltage Range: 4.5 to 5.5 V - Low Input Current: 1.0 µA ORDERING INFORMATION SL74HCT139N Plastic SL74HCT139D SOIC TA = -55° to 125° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs Select PIN 16 =VCC PIN 8 = GND H L L L L A1 X L L H H A0 X L H L H Y0 H L H H H Outputs Y1 H H L H H Y2 H H H L H Y3 H H H H L X = don’t care System Logic Semiconductor MAXIMUM RATINGS - Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL - Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) Value -0.5 to +7.0 -1.5 to VCC +1.5 -0.5 to VCC +0.5 ±20 ±25 ±50 750 500 -65 to +150 260 Unit V V V m A m A m A m W °C °C Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Remended Operating Conditions. +Derating - Plastic DIP: - 10 m W/°C from 65° to 125°C SOIC Package: : - 7 m W/°C from 65° to 125°C REMENDED OPERATING CONDITIONS Symbol VCC VIN, VOUT TA tr, t f Parameter DC...