atsam3303b ATMEL Corporation, atsam3303b Datasheet - Page 20

• Manufacturer Part Number: atsam3303b
• Description: Atsam3303b Audio Processing
• Manufacturer: ATMEL Corporation

Table 10-4.
Notes:
Table 10-5.
20
Symbol
t
t
t
t
t
t
Symbol
t
t
t
t
t
RC
CSOE
POE
ACE
OE
DF
WC
CSWE
WP
DW
DH
1. A built-in PLL multiplies the crystal clock frequency by 4 for internal use. p
2. Memory access time should be lower than t
ATSAM3303B
PLL. p
External Memory Parameters
External Flash Timing Parameters
Parameter
Write cycle time
Write enable low from CS or Address or WOE
Write pulse width
Data out setup time
Data out hold time
Parameter
Read cycle time
Chip select low/address valid to WOE low
Output enable pulse width
Chip select/address access time
Output enable access time
Chip select or WOE high to input data Hi-Z
LCK
= t
CK
/4. Typical value with crystal 12.288 MHz is p
Figure 10-9. External RAM/Flash Write Timing
WD0 - WD15
WA0 - WA21
WCS0
WCS1
WWE
WOE
ACE
min. Typical value with crystal 12.288 MHz is 80 ns.
t
CSWE
LCK
4.5 * p
2.5 * p
2.5 * p
2 * p
= 20 ns.
2 * p
0.5 * p
Min
Min
LCK
0
LCK
LCK
-
-
LCK
-
-
LCK
LCK
t
- 5
- 10
- 10
WC
- 5
LCK
- 5
is the period of the internal clock generated by
t
WP
5 * p
3 * p
Typ
t
2.5 * p
DW
5 * p
-
-
-
-
LCK
LCK
Typ
-
-
-
LCK
LCK
t
DH
2 * p
2 * p
2 * p
Max
LCK
LCK
-
-
-
-
Max
6091D–DRMSD–12-Feb-07
LCK
+ 5
-
-
-
-
- 5
+ 5
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns