74LCX646 Datasheet, PDF (8/13 Pages) Fairchild Semiconductor – Low Voltage Octal Transceiver/Register with 5V Tolerant Inputs and Outputs

M74LCX646
TEST CIRCUIT
TEST
t_PLH, t_PHL
t_PZL, t_PLZ
t_PZH, t_PHZ
C_L = 50 pF or equivalent (includes jig and probe capacitance)
R_L = R1 = 500Ω or equivalent
R_T = Z_OUT of pulse generator (typically 50Ω)
SWITCH
Open
6V
GND
WAVEFORM 1 : PROPAGATION DELAYS, SAB, SBA, An, Bn, TIMES (f=1MHz; 50% duty cycle)
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