STG3000X STMicroelectronics, STG3000X Datasheet - Page 35

• Manufacturer Part Number: STG3000X
• Description: 128-BIT 3D MULTIMEDIA ACCELERATOR
• Manufacturer: STMicroelectronics

128-BIT 3D MULTIMEDIA ACCELERATOR
Figure 34. SGRAM Active to Read or Write
Table 8. SGRAM timing parameters
Symbol
t
t
t
t
t
t
t
t
t
t
t
CS
CH
MTC
RAS
RC
RCD
REF
RP
RRD
T
WR
Command
FBCSx, FBRAS#, FBCAS#, FBWE#,
FBDQM setup time
FBCSx, FBRAS#, FBCAS#, FBWE#,
FBDQM hold time
Load Mode register command to command
Active to Precharge command period
Active to Active command period
Active to Read or Write delay
Refresh period (1024 cycles)
Precharge command period
Active bank A to Active bank B command
period
Transition time
Write recovery time
FBCLKx
Parameter
active
nop
t
RCD
Min.
10
3
1
2
7
3
4
3
2
nop
Max.
16
1
read or write
Unit
t
t
t
t
ms
t
t
t
ns
ns
ns
CK
CK
CK
CK
CK
CK
CK
RIVA 128
Notes
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