DS33X81+ Maxim Integrated Products, DS33X81+ Datasheet - Page 353

• Manufacturer Part Number: DS33X81+
• Description: IC MAPPING ETHERNET 256CSBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS33X81+

• Applications: Data Transport
• Interface: Parallel/Serial
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Package / Case: 256-CSBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.8 DDR SDRAM Interface
Table 12-15. DDR SDRAM Interface
SD_CLK Output Period
SD_CLK Output High Period
SD_CLK Output Low Period
Address and Control Output Hold Time
SDATA Setup to SD_UDQS, SD_LDQS
SDATA Output hold to SD_UDQS, SD_LDQS
SD_UDQS, SD_LDQS Write Preamble
SD_UDQS, SD_LDQS Write Postamble
SD_UDQS, SD_LDQS to SD_UDM, SD_LDM
Hold Time
SD_UDM, SD_LDM to SD_UDQS, SD_LDQS
Setup Time
SD_UDQS, SD_LDQS to SDATA (Read)
SD_CLK to SD_LDQS, SD_UDQS (Read)
SD_LDQS, SD_UDQS High Pulse Width
SD_LDQS, SD_UDQS Low Pulse Width
Rev: 063008
________________________________________________ DS33X162/X161/X82/X81/X42/X41/X11/W41/W11
PARAMETER
SYMBOL
t10
t11
t12
t13
t14
t2
t3
t6
t7
t8
t1
t4
t5
t9
MIN
7.5
3.6
3.6
0.8
0.8
3.2
3.4
3.4
-1
-1
3
6
1
1
TYP
MAX
4.4
4.8
8.5
4.4
4.5
4.5
10
+1
+1
5
UNITS
353 of 375
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns