MCIMX255AJM4AR2 Freescale Semiconductor, MCIMX255AJM4AR2 Datasheet - Page 62

• Manufacturer Part Number: MCIMX255AJM4AR2
• Description: Processors - Application Specialized IMX25 1.2 AUTO
• Manufacturer: Freescale Semiconductor

Specifications of MCIMX255AJM4AR2

• Core: ARM926EJ-S
• Processor Series: MCIMX25
• Maximum Clock Frequency: 400 MHz
• Instruction / Data Cache Memory: 16 KB
• Data Ram Size: 128 KB
• Operating Supply Voltage: 1.15 V to 1.52 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: MAPBGA-400
• Interface Type: USB
• Memory Type: DDR2
• Minimum Operating Temperature: - 40 C

3.7.6.1.3
The following diagrams and tables specify timing related to the SDRAMC module, which interfaces with
DDR2 SDRAM.
Table 50
differential slew rate of 2 V/ns. For additional values, use
DDR2-400, DDR2-533.”
62
DDR1
DDR2
DDR3
ID
SDCLK
SDCLK
ADDR
RAS
CAS
provides values for a command/address slew rate of 1 V/ns and an SDCLK, SDCLK_B
WE
CKE
CS
DDR6
DDR4
DDR4
DDR2 SDRAM–Specific Parameters
ROW/BA
SDRAM clock high-level width
SDRAM clock low-level width
i.MX25 Applications Processor for Automotive Products, Rev. 9
SDRAM clock cycle time
Figure 31. DDR2 SDRAM Basic Timing Parameters
DDR5
Table 50. DDR2 SDRAM Timing Parameter Table
DDR5
Parameter
DDR7
DDR4
DDR4
COL/BA
DDR4
DDR5
DDR5
Table
DDR1
DDR3
51, “tlS, tlH Derating Values for
Symbol
t
t
t
CH
CL
CK
DDR2
Min.
0.45
0.45
7.5
DDR2-400
Freescale Semiconductor
Max.
0.55
0.55
8
Unit
t
t
ns
CK
CK