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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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GP2021 数据表(PDF) 49 Page - Mitel Networks Corporation |
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GP2021 数据表(HTML) 49 Page - Mitel Networks Corporation |
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49 / 62 page  49 GP2021 MCLK DBE D<15:0> A<22:20> NROM NW ARM data dbHnwH nwHmcL adVnroL nroLnwL nroL nwL nwH A<9:0> nwHnroH Fig. 27 : ARM Mode RAM Read Description Symbol Min Max Units Notes NROM Low τ nroL 100 ns 1 NROM Low to NW0–3 Low τ nroLnwL 11 21.5 ns DBE High to NW0–3 High τ dbHnwH 52 57 ns 1 NW0–3 Low τ nwL 50 51 ns 1 NW0–3 High to MCLK Low τ nwHmcL 16 23 ns NW0–3 High to NROM High τ nwHnroH 27.5 39 ns NW0–3 High τ nwH 47 49 ns Address Valid to NROM Low τ adVnroL 2 7.5 ns Note: 1. +50ns / extra wait state ROM data D<15:0> NRD MCLK NROM A<22:20> DBE nroLmcL nrdLmcL adVnroL nrdHdbH mcLnrdH A<9:0> Fig. 27 : ARM Mode ROM Read Description Symbol Min Max Units Notes NROM Low to MCLK Low τ nroLmcL 48 74.5 ns 1 NRD Low to MCLK Low τ nrdLmcL 48 50 ns 1 NRD High to DBE High τ nrdHdbH 33 45 ns MCLK Low to NRD High τ mcLnrdH 2.5 10 ns Address Valid to NROM Low τ adVnroL 2.5 9 ns Note: 1. +50ns / extra wait state |
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