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7027L15PFGI8 Datasheet(PDF) 7 Page - Integrated Device Technology |
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7027L15PFGI8 Datasheet(HTML) 7 Page - Integrated Device Technology |
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7 / 20 page  6.42 IDT7027S/L High-Speed 32K x 16 Dual-Port Static RAM Industrial and Commercial Temperature Ranges 7 AC Test Conditions AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Ranges(4) NOTES:. 1. Transition is measured 0mV from Low or High-impedance voltage with Output Test Load (Figure 2). 2. This parameter is guaranteed by device characterization, but is not production tested. 3. To access RAM, CE = VIL and SEM = VIH. To access semaphore, CE= VIH and SEM = VIL. 4. 'X' in part numbers indicates power rating (S or L). 5. Refer to Chip Enable Truth Table. Figure 1. AC Output Test Load Figure 2. Output Test Load (for tLZ, tHZ, tWZ, tOW) *Including scope and jig. dInput Pulse Levels Input Rise/Fall Times Input Timing Reference Levels Output Reference Levels Output Load GND to 3.0V 5ns Max. 1.5V 1.5V Figures 1 and 2 3199 tbl 11 3199 drw 04 893 Ω 30pF 347 Ω 5V DATAOUT BUSY INT 893 Ω 5pF* 347 Ω 5V DATAOUT 7027X15 Com'l Only 7027X20 Com'l & Ind 7027X25 Com'l & Ind 7027X35 Com'l Only 7027X55 Com'l Only Unit Symbol Parameter Min. Max. Min.Max.Min. Max.Min.Max. Min.Max. READ CYCLE tRC Read Cycle Time 15 ____ 20 ____ 25 ____ 35 ____ 55 ____ ns tAA Address Access Time ____ 15 ____ 20 ____ 25 ____ 35 ____ 55 ns tACE Chip Enable Access Time(4) ____ 15 ____ 20 ____ 25 ____ 35 ____ 55 ns tAOE Output Enable Access Time ____ 10 ____ 12 ____ 13 ____ 20 ____ 30 ns tOH Output Hold from Address Change 3 ____ 3 ____ 3 ____ 3 ____ 3 ____ ns tLZ Output Low-Z Time(1,2) 3 ____ 3 ____ 3 ____ 3 ____ 3 ____ ns tHZ Output High-Z Time(1,2) ____ 10 ____ 12 ____ 15 ____ 15 ____ 25 ns tPU Chip Enable to Power Up Time(2,5) 0 ____ 0 ____ 0 ____ 0 ____ 0 ____ ns tPD Chip Disable to Power Down Time(2,5) ____ 15 ____ 20 ____ 25 ____ 35 ____ 50 ns tSOP Semaphore Flag Update Pulse (OE or SEM)10 ____ 10 ____ 12 ____ 15 ____ 15 ____ ns tSAA Semaphore Address Access Time ____ 15 ____ 20 ____ 25 ____ 35 ____ 55 ns 3199 tbl 12 |
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