Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Hoja De Datos
Los códigos de productos
ATSAM4S-XPLD
1083
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
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
Figure 43-27.SMC Timings - NCS Controlled Read and Write
Table 43-54. SMC Write NCS Controlled (WRITE_MODE = 0)
Symbol
Parameter
Min
Max
Units
1.8V
3.3V
3.3V
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
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
- 7.4
(NCS wr hold -
NWE hold)*
t
CPMCK
- 7.1
—
—
ns
NRD
NCS
DATA
NWE
NCS Controlled READ
with NO HOLD
NCS Controlled READ
with HOLD
NCS Controlled WRITE
SMC22
SMC26
SMC10
SMC11
SMC12
SMC9
SMC8
SMC14
SMC14
SMC23
SMC27
SMC26
A0 - A23
SMC24
SMC25
SMC12
SMC13
SMC13