M52277EVB Freescale Semiconductor, M52277EVB Datasheet - Page 28

• Manufacturer Part Number: M52277EVB
• Description: BOARD DEMO FOR MCF5227
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of M52277EVB

• Contents: Board
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V2
• Silicon Core Number: MCF52
• Silicon Family Name: MCF5227x
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• For Use With/related Products: MCF52277
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Characteristics
28
1
Symbol
The clock crossover voltage is only guaranteed when using the highest drive strength option for the SDCLK[1:0] and
SDCLK[1:0] signals.
V
V
V
V
OUT
MP
ID
IX
SD_DQS3/SD_DQS2
SD_DQS3/SD_DQS2
SD_RAS, SD_CAS
SD_CLK
SD_CLK
SD_CSn,SD_WE,
D[31:24]/D[23:16]
D[31:24]/D[23:16]
Clock output mid-point voltage
Clock output voltage level
Clock output differential voltage (peak to peak swing)
Clock crossing point voltage
SD_CLK
SD_CLK
A[13:0]
Figure 15. SD_CLK and SD_CLK Crossover Timing
MCF5227x ColdFire
Table 16. DDR Clock Crossover Specifications
DD4
Characteristic
1
ROW
CMD
Figure 14. DDR Read Timing
DD1
®
DD5
Microprocessor Data Sheet, Rev. 8
COL
CL=2
CL=2.5
DD2
DQS Read
DD10
Preamble
1.05
–0.3
1.05
DD3
Min
0.7
DQS Read
Preamble
WD1 WD2 WD3 WD4
SD_VDD + 0.3
SD_VDD + 0.6
WD1 WD2 WD3 WD4
DD9
Freescale Semiconductor
Max
1.45
1.45
V
V
V
IX
MP
IX
DQS Read
Postamble
V
ID
DQS Read
Postamble
Unit
V
V
V
V