at85c51snd3 ATMEL Corporation, at85c51snd3 Datasheet - Page 247

• Manufacturer Part Number: at85c51snd3
• Description: At85c51snd3 Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

AC Characteristics
NFC Interface
Definition of Symbols
Timings
7632D–MP3–01/07
Table 273. NFC Interface Timing Symbol Definitions
Table 274. NFC Command Latch Cycle AC timings
V
Table 275. NFC Address Latch Cycle AC timings
V
D
Q
R
W
E
A
C
t
t
t
t
t
t
t
t
t
t
t
t
t
t
ELWH
WHEH
CHWH
WHCL
WLWH
QVWH
WHQX
ELWH
WHEH
AHWH
WHAL
WLWH
QVWH
WHQX
DD
DD
= 1.65 to 3.6 V; T
= 1.65 to 3.6 V; T
Symbol
Symbol
Signals
Parameter
NFCEn Write Setup Time
NFCEn Write Hold Time
NFCLE Setup Time
NFCLE Hold Time
NFWE Pulse Width
Data Setup Time
Data Hold Time
Parameter
NFCEn Write Setup Time
NFCEn Write Hold Time
NFALE Setup Time
NFALE Hold Time
NFWE Pulse Width
Data Setup Time
Data Hold Time
NFD7:0 In
NFD7:0 Out
NFRE
NFWE
NFCEn
NFALE
NFCLE
A
A
= -40 to +85°C, CL ≤ 40pF (4 NF)
= -40 to +85°C, CL ≤ 40pF (4 NF)
H
L
V
X
Z
1·T
2·T
1·T
2·T
3·T
3·T
1·T
2·T
1·T
3·T
3·T
1·T
2·T
1·T
Min
Min
NFC
NFC
NFC
NFC
NFC
NFC
NFC
NFC
NFC
NFC
NFC
NFC
NFC
NFC
-??
-??
-??
-??
-??
-??
-??
-??
-??
-??
-??
-??
-??
-??
Conditions
Max
Max
High
Low
Valid
No Longer Valid
Floating
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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