PM7311 pmc-sierra, PM7311 Datasheet - Page 290

• Manufacturer Part Number: PM7311
• Description: Freedm 84a1024l Assp Telecom Standard Datasheet
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2021832, Issue 2
19.6 Memory Timing
Figure 70 Synchronous I/O Timing
Table 65 SYSCLK Timing
Symbol
f CLK
D CLK
Table 66 Resequencing SDRAM Interface (Figure 70)
Symbol
Ts
Th
Tp
Tz
Notes:
1.
2.
Table 67 Chunk Buffer SDRAM Interface (Figure 70)
Symbol
Ts
Th
Tp
Tz
Notes:
·
Table 68 Connection Context Memory SSRAM Interface (Figure 70)
Symbol
Ts
Maximum output propagation delays are measured with a 30pF load on the output.
Output Valid delay does not apply to DQM.
Maximum output propagation delays are measured with a 30pF load on the output.
Output
CLK
Input
Description
Frequency, SYSCLK
Duty Cycle, SYSCLK
Description
Input Set-up time to SYSCLK
Input Hold time to SYSCLK
SYSCLK High to Output Valid
SYSCLK High to Output High-Impedance
Description
Input Set-up time to SYSCLK
Input Hold time to SYSCLK
SYSCLK High to Output Valid
SYSCLK High to Output High-Impedance
Description
Input Set-up time to SYSCLK
Tz
FREEDM 84A1024L ASSP Telecom Standard Product Data Sheet
Ts
Tzb
Th
Tp
Min
90
40
Min
2.5
0
0.5
0.5
Min
2.5
0
0.5
0.5
Min
3.5
Max
100
60
Max
6.0
6.0
Max
6.0
6.0
Max
Units
MHz
%
Units
ns
ns
ns
ns
Units
ns
ns
ns
ns
Units
ns
Released
290