TD100 delay line chip?

[Brad Parker]

"Dwight K. Elvey" wrote:
>>From: "Brad Parker" <brad at heeltoe.com>
>>
>>Anyone recognize a line of "delay line" chips with names like TD25,
>>TD50, TD100, etc...  The look they were expensive at the time, like $10
>>around 1976.
>>
...
>I would assume that in verilog, it was just a # delay.
> The various taps delay events at the input by the specified
>amounts.

heh.  I guess I guessed correctly for the TD250 :-)

always @(posedge INPUT)
  begin
   O_50ns <= #(50) 1;
   O_100ns <= #(100) 1;
   O_150ns <= #(150) 1;
   O_200ns <= #(200) 1;
   O_250ns <= #(250) 1;
  end

always @(negedge INPUT)
  begin
   O_50ns <= #(50) 0;
   O_100ns <= #(100) 0;
   O_150ns <= #(150) 0;
   O_200ns <= #(200) 0;
   O_250ns <= #(250) 0;
  end