at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 495

• Manufacturer Part Number: at91cap7e
• Description: Customizable Microcontroller
• Manufacturer: ATMEL Corporation

33.10.5
The SDRAM Controller satisfies the timing of standard SDRAM modules given in
corners.
Timings are given assuming a capacitance load on data, control and address pads :
Table 33-26. Capacitance Load on Data, Control and Address Pads
Table 33-27. Capacitance Load on SDCK Pad
Table 33-28. SDRAMC Timings
Control/Address is the set of following timings : A0-A9, A11-A13, SDA10, SDCKE, SDCS, RAS, CAS, BAx, DQMx, and
SDWE
8549A–CAP–10/08
Supply
3.3V
1.8V
Supply
3.3V
1.8V
Symbol
SDRAMC
SDRAMC
SDRAMC
SDRAMC
1
2
3
4
SDRAMC Timings
Parameter
Control/Address/Data out valid before SDCK Rising Edge
Control/Address/Data out change after SDCK Rising Edge
Data Input Setup before SDCK Rising Edge
Data Input Hold after SDCK Rising Edge
MAX
50pF
30 pF
MAX
10pF
10pF
STH
50pF
30 pF
STH
10pF
10pF
Corner
Corner
(1)
(1)
MIN
0 pF
0 pF
MIN
10pF
10pF
0.5*t
0.5*t
3.3V Supply
CPMCK+
CPMCK+
TBD
TBD
Min
Table 33-28
TBD
TBD
Units
ns
ns
ns
ns
AT91CAP7E
and in MAX and STH
495