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Parameter
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Type
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Description
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|---|---|---|
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Technology Type
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Choice List
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The technology type of the device. Choices are:
• Bipolar
• NMOS
• CMOS
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Quality Level
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Choice List
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The quality screening level used in the manufacturing of the device. For more information, see Telcordia Quality Levels.
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# of Gates
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Integer
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Not required for the for the following subcategories: EEPROM, Linear, and Memory.
The number of active gates in the package. You can determine the gate count from the logic diagram. A J-K or R-S flip flop is equivalent to 6 gates when used as part of an LSI circuit. For the purposes of a Telcordia prediction, a gate is considered to be any one of the following functions: AND, OR, exclusive OR, NAND, NOR, and inverter. When a logic diagram is not available, use device transistor count to determine gate count using the following equations:
• Bipolar: Gates = # Transistors / 3
• CMOS: Gates = # Transistors / 4
• All other MOS, except CMOS: Gates = # Transistors / 3
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# of Transistors
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Integer
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Required only for the following subcategories: Linear and PAL, PLA.
The number of active transistors in the package. You can determine the transistor count from the logic diagram.
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# of Bits
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Integer
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Required only for the following subcategories: EEPROM and Memory.
The number of bits in the device. This parameter is used in conjunction with Units to enter the memory device bits.
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Units
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Choice List
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Required only for the following subcategories: EEPROM and Memory.
The units for the # of Bits value. Choices are:
• b (bits)
• Kb (1024 bits)
• Mb (1,048,576 bits)
• Gb (1,073,741,824 bits)
The default is Kb. However, you can enter the unit in many ways. For example, for a 1-kilobit memory chip, you can enter a 1 for # of Bits and select Kb for Units, or you can enter 1024 for # of Bits and select b for Units.
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Package Type
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Choice List
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Not required for Telcordia Issue 2, 3, and 4.
Indicates how the chip is packaged. Choices are Hermetic and Non-Hermetic.
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[Temperature Parameters}
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Real (Degrees C)
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Not required if Method I Case 1 or Method I Case 2 is selected as the calculation method.
For more information, see Basic Temperature Parameters.
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[Derating Parameters]
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For more information, see Derating Parameters.
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