IAR-KSK-IMX25 Freescale Semiconductor, IAR-KSK-IMX25 Datasheet - Page 64

• Manufacturer Part Number: IAR-KSK-IMX25
• Description: KIT DEVELOPMENT I.MX257, ARM926
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r
• Type: MCUr

Specifications of IAR-KSK-IMX25

• Contents: Board, Cables, CD, Debugger, Power Supply
• Processor To Be Evaluated: I.MX257
• Processor Series: i.MX25
• Data Bus Width: 16 bit
• Interface Type: UART, JTAG, USB, Ethernet, SD/MMC
• Core: ARM926EJ-S
• Silicon Manufacturer: Freescale
• Core Architecture: ARM
• Core Sub-architecture: ARM9
• Silicon Core Number: I.MX2
• Silicon Family Name: I.MX25
• Mcu Supported Families: I.MX25
• For Use With/related Products: i.MX25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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.”
64
DDR1
DDR2
DDR3
ID
SDCLK
SDCLK
ADDR
provides values for a command/address slew rate of 1 V/ns and an SDCLK, SDCLK_B
RAS
CAS
WE
CKE
CS
DDR6
DDR4
DDR4
DDR2 SDRAM–Specific Parameters
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
ROW/BA
SDRAM clock high-level width
SDRAM clock low-level width
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