The buffer is a single-input, single-output digital buffer which produces as output a time-delayed copy of its input. The delays associated with an output rise and those associated with an output fall may be different. The model also posts an input load value (in farads) based on the parameter input_load. The output of this model does NOT, however, respond to the total loading it sees on its output; it will always drive the output strongly with the specified delays.

Port Table

Description Direction Default Type Allowed Types Vector Vector Bounds Null Allowed
Input IN d d NO   NO
Output OUT d d NO   NO

Parameter Table

Name Description Data Type Default Value Limits Vector Vector Bounds Null Allowed
rise_delay rise delay Real 1.0e-9 1.0e-12 / - NO   YES
fall_delay fall delay Real 1.0e-9 1.0e-12 / - NO   YES
input_load input load value (F) Real 1.0e-12   NO   YES


a6 1 8 buff1
.model buff1 d_buffer(rise_delay = 0.5e-9 fall_delay = 0.3e-9 input_load = 0.5e-12)

See also

XSPICE Devices
XSPICE Code Models