`ENGINEERING DOCUMENTS
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`JEDEC
`STANDARD
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`Terms, Definitions, and Letter
`Symbols for Microcomputers,
`Microprocessors, and Memory
`Integrated Circuits
`·
`
`JESD100-A
`
`(Revision of JEDEC Standard No. 100)
`
`AUGUST 1993
`
`ELECTRONIC INDUSTRIES ASSOCIATION
`ENGINEERING ·oEPARTMENT
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`Solti State Tedmology Association
`,y IHS Marki under icense with JEDEC
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`Ofdor Number: W~260925
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`MICROCHIP TECHNOLOGY INC. EXHIBIT 1020
`Page 1 of 2
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`JEDEC Standard No. 100-A
`Page 4
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`1. GENERAL CONCEPTS AND TYPES (cont'd)
`
`cycle
`
`(1) A sequence of operations in which one set of events is completed.
`
`(2) Any set of operations that is repeated regularly in the same sequence. The
`operations may be subject to variations on each repetition. (ANSI X3. 172)
`
`data bus
`
`A bus used to communicate data internally and externally to and from processing
`units, storage devices, or peripheral devices. (Adapted from ANSI X3.172.)
`
`data retention mode
`
`A standby or battery mode of operation in which the integrity of stored data is
`maintained although the supply voltage is below that specified for reading or writing.
`
`duplex transmission
`
`Data transmission in both directions simultaneously.
`
`(ANSI X3.172)
`
`dynamic (read/Write) memory (DRAM)
`
`A read/write memory in which the cells require the repetitive application of control
`signals generated inside or outside the integrated circuit in order to retain stored data.
`(Adapted from IEC 748-2.)
`
`NOTE 1 : The words •read/write• may be omitted from the term when no
`misunderstanding is likely.
`
`NOTE 2: Each repetitive application of the control signals is normally called a refresh
`operation or cycle.
`
`NOTE 3: A dynamic memory may use static addressing or sensing circuits.
`
`NOTE 4: Contrast with static (read/write) memory.
`
`electrically alterable read-only memory (EAROM)
`
`Synonym for ·electrically erasable programmable read-ooly memory'.
`
`electrically erasable programmable~
`
`meuoy (EEPROM)
`
`A reprogrammable read-only memory in ~ eels may be erased electrically and in
`which each cell may be reprogrammed eiec:t·'i::a?y
`
`erasable programmable read-Only memay ~
`
`A reprogrammable read-only memo,y :..- :'"li::r. a ~ :7?f be simultaneously erased
`.. ..IJ~i,ng ultraviolet light and in which eac- oa.
`!le --e:rog-ammed electrically.
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`MICROCHIP TECHNOLOGY INC. EXHIBIT 1020
`Page 2 of 2
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