at75c310 ATMEL Corporation, at75c310 Datasheet - Page 5

• Manufacturer Part Number: at75c310
• Description: Smart Internet Appliance Processor Electrical And Mechanical Characteristics
• Manufacturer: ATMEL Corporation

Figure 4. DRAM Write Cycle (Single Write)
Table 3. DRAM Write Cycle (Single Write) Timings
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
RAS
RP
CSH
CRP
RCD
RSH
CAS
ASR
RAH
ASC
CAH
WCS
WCH
DS
DH
NRASx
NCASx
NDWE
Parameter
Read or Write Cycle Time
RAS Pulse Width
RAS Precharge Time
CAS Hold Time
CAS to RAS Precharge Time
RAS to CAS Delay Time
RAS Hold Time
CAS Pulse Width
Row Address Setup Time
Row Address Hold Time
Column Address Setup Time
Column Address Hold Time
Write Command Setup Time
Write Command Hold Time
Data Setup Time
Data Hold Time
D
A
t
ASR
t
RAH
t
RCD
t
CSH
t
WCS
t
ASC
t
DS
t
RAS
t
RC
t
t
t
CAS
WCH
DH
t
CAH
t
RSH
Min (ns)
125.0
82.0
42.0
61.0
49.0
41.0
29.0
20.0
22.0
15.0
21.0
18.0
21.0
21.0
1.5
8.0
t
CRP
t
RP
Max (ns)
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
5