CMOS Gate Array
Core Logic
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$0,+* PLFURQ &026 *DWH $UUD\
Description ITBx is a family of inverting internal tristate buffers...
Description
Core Logic
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$0,+* PLFURQ &026 *DWH $UUD\
Description ITBx is a family of inverting internal tristate buffers with active low enable.
Logic Symbol
Truth Table
ITBx EN
A QN EN
A QN
EN A QN HXZ L LH LHL Z = High Impedance
HDL Syntax Verilog .................... ITBx inst_name (QN, A, EN); VHDL...................... inst_name: ITBx port map (QN, A, EN);
Pin Loading
Pin Name
A EN QN
ITB1 1.0 1.7 0.6
Equivalent Loads ITB2 ITB4 2.1 4.3 2.3 3.5 1.2 2.5
ITB6 6.4 4.7 3.8
Size And Power Characteristics
Power Characteristicsa
Cell Equivalent Gates
Static IDD (TJ = 85°C) (nA)
EQLpd (Eq-load)
ITB1 2.0
TBD
2.8
ITB2 3.0
TBD
5.0
ITB4 5.0
TBD
7.4
ITB6 7.0
TBD
10.9
a. See page 2-15 for power equation.
3-130
®
Core Logic
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®
$0,+* PLFURQ &026 *DWH $UUD\
Propagation Delays (ns)
Conditions: TJ = 25°C, VDD = 5.0V, Typical Process
Number of Equivalent Loads
1
From: A ITB1 To: QN
tPLH tPHL
From: EN To: QN
tZH tZL
Number of Equivalent Loads
0.20 ...
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