SPEAR320-2 STMicroelectronics, SPEAR320-2 Datasheet - Page 50

• Manufacturer Part Number: SPEAR320-2
• Description: IC MPU ARM9 289LFBGA
• Manufacturer: STMicroelectronics
• Series: SPEAr®r

Specifications of SPEAR320-2

• Processor Type: ARM Microprocessor
• Speed: 333MHz
• Voltage: 1.14 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 289-LFBGA
• Processor Series: SPEAr320
• Core: ARM926EJ-S
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 333 MHz
• Operating Supply Voltage: 1.2 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Data Ram Size: 8 KB
• Interface Type: I2C, UART, USB, Serial
• Number Of Programmable I/os: 102
• Number Of Timers: 4
• Program Memory Size: 32 KB
• Program Memory Type: ROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-10843

Timing requirements
7.1.2
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Table 26.
DDR2 write cycle timings
Figure 9.
Figure 10. DDR2 Write cycle path
Table 27.
DQS
CLK
DQ
Frequency
Frequency
166 MHz
133 MHz
333 MHz
266 MHz
200 MHz
166 MHz
133 MHz
DDR2 Read cycle timings (continued)
DDR2 Write cycle waveforms
DDR2 Write cycle timings
t4
t6
t5
Doc ID 16755 Rev 4
2.00 ns
2.37 ns
t4 max
t4 max
1.36
1.55
1.86
2.11
2.49
t4
t6
t5
t5 max
t5 max
260 ps
634 ps
-1.55
-1.36
-1.05
- 794
-420
t4
t6
t5
t5 max
260 ps
634 ps
Unit
ns
ns
ns
ns
ns
SPEAr320