HCF4555B Datasheet, PDF (6/10 Pages) STMicroelectronics – DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXER OUTPUT HIGH ON SELECT

HCF4555B
1 OF 16 DECODER USING HCF4555B AND HCF4556B
TRUTH TABLE
INPUTS
Q OUTPUTS
E D C B A 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
000001000000000000000
000010100000000000000
000100010000000000000
000110001000000000000
001000000100000000000
001010000010000000000
001100000001000000000
001110000000100000000
010000000000010000000
010010000000001000000
010100000000000100000
010110000000000010000
011000000000000001000
011010000000000000100
011100000000000000010
011110000000000000001
1XXXX 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TEST CIRCUIT
C_L = 50pF or equivalent (includes jig and probe capacitance)
R_L = 200KΩ
R_T = Z_OUT of pulse generator (typically 50Ω)
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