SN74LS689DW

The SN74LS689DW perform comparisons of two eight-bit binary or BCD words.All types provide P=Q outputs and the SN74LS689DW have totem-pole outputs,while the SN74LS689DW have open-collector outputs.The SN74LS689DW feature 20-k pullup termination resistors on the Q inputs for analog or switch data.

Features of the SN74LS689DW are:(1)compares two 8-bit words;(2)choice of totem-pole or open-collector outputs;(3)hysteresis at P and Q inputs;(4)SN74LS689DW have 20-k pullup resistors on the Q inputs.

The absolute maximum ratings of the SN74LS689DW can be summarized as:(1):the supply voltage is 7V;(2):the input voltage is 7V;(3):the off-state output voltage is 7V;(4):the operating free-air temperature range is 0 to 7;(5):the storage temperature range is -65 to 150.The absolute maximum ratings of the SN74LS689DW can be summarized as:(1):the parameter is supply voltage,the symbol is VCC,the rating is 4.75 to 5.25,the unit is V;(2):the parameter is high-level output current,the symbol is IOH,the rating is -400,the unit is A;(3):the parameter is low-level output current,the symbol is IOL,the rating is 24,the unit is mA;(4):the parameter is operating free-air temperature,the symbol is TA,the rating is 0 to 70,the unit is .