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7005S35JI Datasheet(PDF) 9 Page - Integrated Device Technology |
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7005S35JI Datasheet(HTML) 9 Page - Integrated Device Technology |
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9 / 21 page  6.42 IDT7005S/L High-Speed 8K x 8 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges 9 NOTES: 1. Transition is measured 0mV from Low or High-impedance voltage with load (Figure 2). 2. This parameter is guaranteed by device characterization but is not production tested. 3. To access RAM, CE = VIL, SEM = VIH. To access semaphore, CE = VIH and SEM = VIL. Either condition must be valid for the entire tEW time. 4. The specification for tDH must be met by the device supplying write data to the RAM under all operating conditions. Although tDH and tOW values will vary over voltage and temperature, the actual tDH will always be smaller than the actual tOW. 5. 'X' in part number indicates power rating (S or L). AC Electrical Characteristics Over the Operating Temperature and Supply Voltage(5) Symbol Parameter 7005X15 Com'l Only 7005X17 Com'l Only 7005X20 Com'l, Ind & Military 7005X25 Com'l & Military Unit Min. Max. Min. Max. Min. Max. Min. Max. WRITE CYCLE tWC Write Cycle Time 15 ____ 17 ____ 20 ____ 25 ____ ns tEW Chip Enable to End-of-Write(3) 12 ____ 12 ____ 15 ____ 20 ____ ns tAW Address Valid to End-of-Write 12 ____ 12 ____ 15 ____ 20 ____ ns tAS Address Set-up Time(3) 0 ____ 0 ____ 0 ____ 0 ____ ns tWP Write Pulse Width 12 ____ 12 ____ 15 ____ 20 ____ ns tWR Write Recovery Time 0 ____ 0 ____ 0 ____ 0 ____ ns tDW Data Valid to End-of-Write 10 ____ 10 ____ 15 ____ 15 ____ ns tHZ Output High-Z Time(1,2) ____ 10 ____ 10 ____ 12 ____ 15 ns tDH Data Hold Time(4) 0 ____ 0 ____ 0 ____ 0 ____ ns tWZ Write Enable to Output in High-Z(1,2) ____ 10 ____ 10 ____ 12 ____ 15 ns tOW Output Active from End-of-Write(1,2,4) 0 ____ 0 ____ 0 ____ 0 ____ ns tSWRD SEM Flag Write to Read Time 5 ____ 5 ____ 5 ____ 5 ____ ns tSPS SEM Flag Contention Window 5 ____ 5 ____ 5 ____ 5 ____ ns 2738 tbl 14a Symbol Parameter 7005X35 Com'l, Ind & Military 7005X55 Com'l, Ind & Military 7005X70 Military Only Unit Min. Max. Min. Max. Min. Max. WRITE CYCLE tWC Write Cycle Time 35 ____ 55 ____ 70 ____ ns tEW Chip Enable to End-of-Write(3) 30 ____ 45 ____ 50 ____ ns tAW Address Valid to End-of-Write 30 ____ 45 ____ 50 ____ ns tAS Address Set-up Time(3) 0 ____ 0 ____ 0 ____ ns tWP Write Pulse Width 25 ____ 40 ____ 50 ____ ns tWR Write Recovery Time 0 ____ 0 ____ 0 ____ ns tDW Data Valid to End-of-Write 15 ____ 30 ____ 40 ____ ns tHZ Output High-Z Time(1,2) ____ 15 ____ 25 ____ 30 ns tDH Data Hold Time(4) 0 ____ 0 ____ 0 ____ ns tWZ Write Enable to Output in High-Z(1,2) ____ 15 ____ 25 ____ 30 ns tOW Output Active from End-of-Write(1,2,4) 0 ____ 0 ____ 0 ____ ns tSWRD SEM Flag Write to Read Time 5 ____ 5 ____ 5 ____ ns tSPS SEM Flag Contention Window 5 ____ 5 ____ 5 ____ ns 2738 tbl 14b |
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