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IDT72821 数据表(PDF) 5 Page - Integrated Device Technology |
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IDT72821 数据表(HTML) 5 Page - Integrated Device Technology |
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5 / 16 page  5 Commercial And Industrial Temperature Range IDT72801/728211/72821/72831/72841/72851 Com'l & Commercial Ind'l (1) IDT72801L10 IDT72801L15 IDT72801L25 IDT72811L10 IDT72811L15 IDT72811L25 IDT72821L10 IDT72821L15 IDT72821L25 IDT72831L10 IDT72831L15 IDT72831L25 IDT72841L10 IDT72841L15 IDT72841L25 IDT72851L10 IDT72851L15 IDT72851L25 Symbol Parameter Min Max. Min Max. Min Max. Unit fS Clock Cycle Frequency — 100 — 66.7 — 40 MHz tA Data Access Time 2 6.5 2 10 2 15 ns tCLK Clock Cycle Time 10 — 15 — 25 — ns tCLKH Clock High Time 4.5 — 6 — 10 — ns tCLKL Clock Low Time 4.5 — 6 — 10 — ns tDS Data Setup Time 3 — 4 — 6 — ns tDH Data Hold Time 0.5 — 1 — 1 — ns tENS Enable Setup Time 3 — 4 — 6 — ns tENH Enable Hold Time 0.5 — 1 — 1 — ns tRS Reset Pulse Width(2) 10 — 15 — 15 — ns tRSS Reset Setup Time 8 — 10 — 15 — ns tRSR Reset Recovery Time 8 — 10 — 15 — ns tRSF Reset to Flag Time and Output Time — 10 — 15 — 25 ns tOLZ Output Enable to Output in Low-Z(3) 0— 0 — 0— ns tOE Output Enable to Output Valid 3 6 3 8 3 13 ns tOHZ Output Enable to Output in High-Z(3) 36 3 8 3 13 ns tWFF Write Clock to Full Flag — 6.5 — 10 — 15 ns tREF Read Clock to Empty Flag — 6.5 — 10 — 15 ns tPAF Write Clock to Programmable — 6.5 — 10 — 15 ns Almost-Full Flag tPAE Read Clock to Programmable — 6.5 — 10 — 15 ns Almost-Empty Flag tSKEW1 Skew Time Between Read Clock and 5 — 6 — 10 — ns Write Clock for Empty Flag and Full Flag tSKEW2 Skew Time Between Read Clock and Write 14 — 15 — 18 — ns Clock for Programmable Almost-Empty Flag and Programmable Almost-Full Flag In Pulse Levels GND to 3.0V Input Rise/Fall Times 3ns Input Timing Reference Levels 1.5V OutputReferenceLevels 1.5V OutputLoad See Figure 1 or equivalent circuit Figure 1. Output Load *Includes jig and scope capacitances. 30pF* 1.1K 5V 680 Ω D.U.T. 3034 drw 03 AC ELECTRICAL CHARACTERISTICS (Commercial: VCC = 5V ± 10%, TA = 0 °C to +70°C; Industrial: VCC = 5V ± 10%, TA = –40°C to +85°C) NOTES: 1. Industrial temperature range product for 15ns and 25ns speed grade are available as a standard device. 2. Pulse widths less than minimum values are not allowed. 3. Values guaranteed by design, not currently tested. AC TEST CONDITIONS |
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