Atmel AT85DVK-07 Especificaciones descargar pdf (Pagina 248)

100

101

AT85C51SND3Bx

7632A–MP3–03/06

Figure 143. NFC Write Cycle Waveforms

MMC Interface

Definition of symbols Table 268. MMC Interface Timing Symbol Definitions

Timings Table 269. MMC Interface AC timings

= 1.65 to 3.6 V; T

= -40 to +85°C, CL ≤ 40pF (4 cards)

WLWH

NFD7:0

NFALE

NFCLE

NFCEn

Data

NFWE

ELWH

WHEH

WHOX

OVWH

Signals Conditions

C Clock H High

D Data In L Low

O Data Out V Valid

X No Longer Valid

Symbol Parameter Min Max Unit

CHCH

Clock Period 40 ns

CHCX

Clock High Time 10 ns

CLCX

Clock Low Time 10 ns

CLCH

Clock Rise Time 10 ns

CHCL

Clock Fall Time 10 ns

DVCH

Input Data Valid to Clock High 3 ns

CHDX

Input Data Hold after Clock High 3 ns

CHOX

Output Data Hold after Clock High 5 ns

OVCH

Output Data Valid to Clock High 5 ns

1 2 ... 243 244 245 246 247 248 249 250 251 252 253 ... 262 263

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