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Core Logic
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Description DL021 is a transparent, unbuffered D latch with active low gate transparency. SET is active low.
Logic Symbol
Truth Table
Pin Loading
DL021 DSQ G
SN GN D Q L XXH H H X NC HL L L H L HH
NC = No Change
Equivalent Load
D 1.0 GN 1.0 SN 1.0
Equivalent Gates ................ 4.0
HDL Syntax Verilog .................... DL021 inst_name (Q, D, GN, SN); VHDL...................... inst_name: DL021 port map (Q, D, GN, SN);
Size And Power Characteristics
Parameter
Static IDD (TJ = 85°C) EQLpd
See page 2-15 for power equation.
Value TBD 7.5
Units nA
Eq-load
Propagation Delays Conditions: TJ = 25°C, VDD = 5.0V, Typical Process
From Delay (ns) To Parameter
1
Number of Equivalent Loads 258
D
Q
tPLH tPHL
0.38 0.53
0.