MCIMX255AJM4AR2 Freescale Semiconductor, MCIMX255AJM4AR2 Datasheet - Page 63

• 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

Table 50
slew rate of 2 V/ns.
Freescale Semiconductor
DDR4
DDR5
DDR6
DDR7
Slew Rate (V/Ns)
ID
Command/
Address
0.25
0.15
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
shows values for a command/address slew rate of 1 V/ns and an SDCLK, SDCLK_B differential
Table 51
CS, RAS, CAS, CKE, WE setup time
CS, RAS, CAS, CKE, WE hold time
Table 50. DDR2 SDRAM Timing Parameter Table (continued)
Table 51. tlS, tlH Derating Values for DDR2-400, DDR2-533
–1450
i.MX25 Applications Processor for Automotive Products, Rev. 9
+187
+179
+167
+150
+125
–110
–175
–285
–350
–525
–800
+83
Address output setup time
–11
–25
–43
–67
Address output hold time
tlS
0
shows additional values for DDR2-400 and DDR2-533.
2.0 V/ns
Parameter
–1125
–125
–188
–292
–375
–500
–708
+94
+89
+83
+75
+45
+21
–14
–31
–54
–83
tlH
0
CK, CK Differential Slew Rate
–1420
+217
+209
+197
+180
+155
+113
–145
–255
–320
–495
–770
+30
+19
–13
–37
–80
+5
tlS
1.5 V/ns
–1095
+124
+119
+113
+105
–158
–262
–345
–470
–678
+75
+51
+30
+16
–24
–53
–95
–1
tlH
Symbol
t
t
t
t
IS
IH
IS
IH
–1390
+247
+239
+227
+210
+185
+143
–115
–225
–290
–465
–740
+60
+49
+35
+17
–50
–7
tlS
1.0 V/ns
0.475
0.475
Min.
0.35
0.35
DDR2-400
–1065
+154
+149
+143
+135
+105
–128
–232
–315
–440
–648
+46
+29
+81
+60
–23
–65
+6
tlH
Max.
—
—
—
—
Units
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
Unit
ns
ns
ns
ns
63