DescriptionThe 'HC139 is a high-speed cmos logic dual 2- to 4-line decoder/demultiplexer.It devices contain two independent binary to one of four decoders each with a single active low enable input (1E or 2E). Data on the select inputs (1A0 and 1A1 or 2A0 and 2A1) cause one of the four normally hi...
HC139: DescriptionThe 'HC139 is a high-speed cmos logic dual 2- to 4-line decoder/demultiplexer.It devices contain two independent binary to one of four decoders each with a single active low enable input ...
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Features of the 'HC139 are::(1)multifunction capability;(2)binary to 1 of 4 decoders or 1 to 4 line demultiplexer;(3)active low mutually exclusive outputs;(4)Fanout (Over Temperature Range):Standard Outputs is 10 LSTTL Loads,Bus Driver Outputs is 15 LSTTL Loads;(5) wide operating temperature range:-55 to 125;(6)balanced propagation delay and transition times;(7)significant power reduction compared to LSTTL Logic ICs;(8)operation:2V to 6V;(9)high noise immunity: NIL = 30%, NIH = 30%of VCC at VCC = 5V
The absolute maximum ratings of the 'HC139 can be summarized as:(1)dc supply voltage, VCC:-0.5V to 7V;(2) dc input diode current, IIK:for VI < -0.5V or VI > VCC + 0.5V is ±20mA;(3)dc output diode current, IOK:for VO < -0.5V or VO > VCC + 0.5V is ±20mA;(4)dc output source or sink current per output pin, IO:For VO > -0.5V or VO < VCC + 0.5V is ±25mA;(6)dc vcc or ground current, ICC or IGND:±50mA.
If you want to know more information such as the electrical characteristics about the 'HC139, please download the datasheet in www.seekic.com or www.chinaicmart.com .