Datasheet

1154
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
Notes: 1. Hold length = total cycle duration - setup duration - pulse duration. “Hold length” is for “NCS wr hold length” or “NWE
hold length”.
2. 1.8V domain: VDDIO from 1.65 V to 1.95V, maximum external capacitor = 30pF
3. 3.3V domain: VDDIO from 2.85V to 3.6V, maximum external capacitor = 50pF
Table 44-67. SMC Write Signals - NCS Controlled (WRITE_MODE = 0)
Symbol Parameter
Min Max
Units1.8V
(2)
3.3V
(3)
1.8V
(2)
3.3V
(3)
SMC
22
Data Out Valid before NCS High
NCS wr pulse *
t
CPMCK
- 6.3
NCS wr pulse *
t
CPMCK
- 6.2
——ns
SMC
23
NCS Pulse Width
NCS wr pulse *
t
CPMCK
- 7.7
NCS wr pulse *
t
CPMCK
- 6.7
——ns
SMC
24
A0 - A22 Valid before NCS Low
NCS wr setup *
t
CPMCK
- 6.5
NCS wr setup *
t
CPMCK
- 6.3
——ns
SMC
25
NWE Low before NCS High
(NCS wr setup -
NWE setup +
NCS pulse)*
t
CPMCK
- 5.1
(NCS wr setup -
NWE setup +
NCS pulse)*
t
CPMCK
- 4.9
——ns
SMC
26
NCS High to Data Out, A0 - A25,
Change
NCS wr hold *
t
CPMCK
- 10.2
NCS wr hold *
t
CPMCK
- 8.4
——ns
SMC
27
NCS High to NWE Inactive
(NCS wr hold -
NWE hold)*
t
CPMCK
- 2.1
(NCS wr hold -
NWE hold)*
t
CPMCK
- 1.6
——ns