AT85C51SND3Bx
Figure 143. NFC Write Cycle Waveforms
TELWH
TWHEH
NFCEn
NFCLE
NFALE
NFWE
TWLWH
TOVWH
Data
TWHOX
NFD7:0
MMC Interface
Definition of symbols
Table 268. MMC Interface Timing Symbol Definitions
Signals
Conditions
C
D
O
Clock
H
L
High
Data In
Data Out
Low
V
X
Valid
No Longer Valid
Timings
Table 269. MMC Interface AC timings
VDD = 1.65 to 3.6 V; TA = -40 to +85°C, CL ≤ 40pF (4 cards)
Symbol
TCHCH
Parameter
Min
40
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Clock Period
TCHCX
TCLCX
TCLCH
TCHCL
TDVCH
TCHDX
TCHOX
TOVCH
Clock High Time
10
Clock Low Time
10
Clock Rise Time
10
10
Clock Fall Time
Input Data Valid to Clock High
Input Data Hold after Clock High
Output Data Hold after Clock High
Output Data Valid to Clock High
3
3
5
5
11
7632A–MP3–03/06
ATMEL [ ATMEL ]
