Cell bit stream comprising a current source (p1), means (p6) for detecting the presence of a digital signal bit (bit) and (p2, p5, p7) of the detection of at least one control signal (l, lc) in order to control, on a first output (s1) of the cell, the appearance of a current delivered by the current source (p1) as a function of the digital signal (bit) applied to said cell and the said at least one control signal (l, lc), characterized in that it further comprises means (p9) for detecting the presence of a bit (bitz) complementary to the digital signal bit (bit) and (p3, p4, p8) of the detection of the complement (lz, zcl) of said at least one control signal (l, lc), in order to control in a second output (s2) of the cell, the appearance of a current delivered by the current source (p1), which is the complement of the current delivered to the first output (s1), said means for detecting the presence of bits and the said at least one control signal, said means for detecting the presence of complementary bits and additional control signals and said current source is carried out with the aid of field effect transistors of the same type.
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