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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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MPC862 Folha de dados(PDF) 19 Page - Motorola, Inc |
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MPC862 Folha de dados(HTML) 19 Page - Motorola, Inc |
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19 / 88 page  MOTOROLA MPC862/857T/857DSL Hardware Specifications 19 Bus Signal Timing B28 CLKOUT rising edge to WE(0:3) negated GPCM write access CSNT = 0 (MAX = 0.00 x B1 + 9.00) — 9.00 — 9.00 — 9.00 — 9.00 ns B28a CLKOUT falling edge to WE(0:3) negated GPCM write access TRLX = 0, 1, CSNT = 1, EBDF = 0 (MAX = 0.25 x B1 + 6.80) 7.60 14.30 6.30 13.00 5.00 11.80 3.80 10.50 ns B28b CLKOUT falling edge to CS negated GPCM write access TRLX = 0,1, CSNT = 1 ACS = 10 or ACS = 11, EBDF = 0 (MAX = 0.25 x B1 + 6.80) — 14.30 — 13.00 — 11.80 — 10.50 ns B28c CLKOUT falling edge to WE(0:3) negated GPCM write access TRLX = 0, CSNT = 1 write access TRLX = 0,1, CSNT = 1, EBDF = 1 (MAX = 0.375 x B1 + 6.6) 10.90 18.00 10.90 18.00 7.00 14.30 5.20 12.30 ns B28d CLKOUT falling edge to CS negated GPCM write access TRLX = 0,1, CSNT = 1, ACS = 10, or ACS = 11, EBDF = 1 (MAX = 0.375 x B1 + 6.6) — 18.00 — 18.00 — 14.30 — 12.30 ns B29 WE(0:3) negated to D(0:31), DP(0:3) High-Z GPCM write access, CSNT = 0, EBDF = 0 (MIN = 0.25 x B1 - 2.00) 5.60 — 4.30 — 3.00 — 1.80 — ns B29a WE(0:3) negated to D(0:31), DP(0:3) High-Z GPCM write access, TRLX = 0, CSNT = 1, EBDF = 0 (MIN = 0.50 x B1 - 2.00) 13.20 — 10.50 — 8.00 — 5.60 — ns B29b CS negated to D(0:31), DP(0:3), High Z GPCM write access, ACS = 00, TRLX = 0,1 & CSNT = 0 (MIN = 0.25 x B1 - 2.00) 5.60 — 4.30 — 3.00 — 1.80 — ns B29c CS negated to D(0:31), DP(0:3) High-Z GPCM write access, TRLX = 0, CSNT = 1, ACS = 10, or ACS = 11 EBDF = 0 (MIN = 0.50 x B1 - 2.00) 13.20 — 10.50 — 8.00 — 5.60 — ns B29d WE(0:3) negated to D(0:31), DP(0:3) High-Z GPCM write access, TRLX = 1, CSNT = 1, EBDF = 0 (MIN = 1.50 x B1 - 2.00) 43.50 — 35.50 — 28.00 — 20.70 — ns B29e CS negated to D(0:31), DP(0:3) High-Z GPCM write access, TRLX = 1, CSNT = 1, ACS = 10, or ACS = 11 EBDF = 0 (MIN = 1.50 x B1 - 2.00) 43.50 — 35.50 — 28.00 — 20.70 — ns Table 7. Bus Operation Timings (continued) Num Characteristic 33 MHz 40 MHz 50 MHz 66 MHz Unit Min Max Min Max Min Max Min Max Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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