Maxim DS33Z41 Sdram Timing 12. Sdram Interface Timing, 100MHz, Sdclko to SRAS, SCAS, SWE, Sdcs

Models: DS33Z41

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DS33Z41 Quad IMUX Ethernet Mapper

11.7 SDRAM Timing

Table 11-12. SDRAM Interface Timing

PARAMETER

SYMBOL

 

100MHz

 

UNITS

MIN

TYP

MAX

 

 

 

SDCLKO Period

t1

9.7

10

10.3

ns

SDCLKO Duty Cycle

t2

4

 

6

ns

SDCLKO to SDATA Valid

t3

 

 

7

ns

Write to SDRAM

 

 

 

 

 

 

 

SDCLKO to SDATA Drive On

t4

4

 

 

ns

Write to SDRAM

 

 

 

 

 

 

 

SDCLKO to SDATA Invalid

t5

3

 

 

ns

Write to SDRAM

 

 

 

 

 

 

 

SDCLKO to SDATA Drive Off

t6

 

 

4

ns

Write to SDRAM

 

 

 

 

 

 

 

SDATA to SDCLKO Setup Time

t7

2

 

 

ns

Read from SDRAM

 

 

 

 

 

 

 

SDCLKO to SDATA Hold Time

t8

 

 

2

ns

Read from SDRAM

 

 

 

 

 

 

 

SDCLKO to SRAS, SCAS, SWE, SDCS Active

t9

 

 

5

ns

Read or Write to SDRAM

 

 

 

 

 

 

 

SDCLKO TO SRAS, SCAS, SWE, SDCS

t10

2

 

 

ns

Inactive Read or Write to SDRAM

 

 

 

 

 

 

 

SDCLKO to SDA, SBA Valid

t11

 

 

7

ns

Read or Write to SDRAM

 

 

 

 

 

 

 

SDCLKO TO SDA, SBA Invalid

t12

2

 

 

ns

Read or Write to SDRAM

 

 

 

 

 

 

 

SDCLKO to SDMASK Valid

t13

 

 

5

ns

Read or Write to SDRAM

 

 

 

 

 

 

 

SDCLKO TO SDMASK Invalid

t14

2

 

 

ns

Read or Write to SDRAM

 

 

 

 

 

 

 

151 of 167

Page 151
Image 151
Maxim DS33Z41 specifications Sdram Timing 12. Sdram Interface Timing, 100MHz, Sdclko to SRAS, SCAS, SWE, Sdcs