ELANSC310 AMD [Advanced Micro Devices], ELANSC310 Datasheet - Page 92

• Manufacturer Part Number: ELANSC310
• Description: Single-Chip, 32-Bit, PC/AT Microcontroller
• Manufacturer: AMD [Advanced Micro Devices]

Notes:
These timings are based on 33-MHz operation (70 ns or faster DRAM recommended).
92
Symbol
t30
t31
t32
t37
t38
t39
t41
t42
t43
t45
t46
t47
t48
t49
t50
t51
t53
Table 46. DRAM Memory Interface, Page Hit and Refresh Cycle (See Figures 36 and 37)
MA valid setup to RAS Low
MA hold from RAS Low
MA setup to CAS Low
CAS precharge (Page mode)
MA hold from CAS active
RAS to CAS delay
CAS pulse width (page hit)
MWE setup to CAS Low (page hit)
MWE hold from CAS Low
CAS cycle time (Page mode)
CAS Low to D15–D0 valid (read access time)
D15–D0 hold from CAS High (read)
D15–D0 setup to CAS Low (write)
D15–D0 hold from CAS Low (write)
CAS Low to RAS Low (refresh)
CAS hold from RAS Low (refresh)
RAS pulse width (suspend refresh)
Parameter Description
Élan™SC310 Microcontroller Data Sheet
P R E L I M I N A R Y
Notes
Min
10
10
15
20
20
15
45
15
10
70
80
0
0
0
0
0
Preliminary
10,000
Max
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns