ADZS-BF537-EZLITE Analog Devices, ADZS-BF537-EZLITE Datasheet - Page 35

• Manufacturer Part Number: ADZS-BF537-EZLITE
• Description: Specifications: Type: DSP ; Contents: Evaluation Board, Software and Documentation ; For Use With/Related Products: ADSP-BF537 ; Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant
• Manufacturer: Analog Devices

SDRAM Interface Timing
Table 27. SDRAM Interface Timing
1
2
Parameter
Timing Requirements
t
t
Switching Characteristics
t
t
t
t
t
t
t
t
Command pins include: SRAS, SCAS, SWE, SDQM, SMS, SA10, SCKE.
These limits are specific to the SDRAM interface only. In addition, CLKOUT must always comply with the limits in
SSDAT
HSDAT
DCAD
HCAD
DSDAT
ENSDAT
SCLK
SCLK
SCLKH
SCLKL
2
2
DATA15–0 Setup Before CLKOUT
DATA15–0 Hold After CLKOUT
COMMAND
COMMAND
DATA15–0 Disable After CLKOUT
DATA15–0 Enable After CLKOUT
CLKOUT Period when T
CLKOUT Period when T
CLKOUT Width High
CLKOUT Width Low
DATA (OUT)
COMMAND,
ADDRESS
DATA (IN)
CLKOUT
(OUT)
1
1
, ADDR19–1, DATA15–0 Delay After CLKOUT
, ADDR19–1, DATA15–0 Hold After CLKOUT
J
J
t
NOTE: COMMAND = SRAS, SCAS, SWE, SDQM, SMS, SA10, SCKE.
SSDAT
+105
+105
°
°
C
C
Rev. I | Page 35 of 68 | July 2010
Figure 14. SDRAM Interface Timing
t
DCAD
t
HSDAT
t
SCLK
t
ENSDAT
ADSP-BF534/ADSP-BF536/ADSP-BF537
t
DCAD
t
HCAD
t
SCLKL
Table 14 on Page
t
HCAD
t
Min
1.5
0.8
1.0
0.5
7.5
10
2.5
2.5
SCLKH
t
DSDAT
25.
Max
4.0
6.0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns