MCIMX253CVM4 Freescale Semiconductor, MCIMX253CVM4 Datasheet - Page 65

• Manufacturer Part Number: MCIMX253CVM4
• Description: IC MPU I.MX25 IND 400MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r

Specifications of MCIMX253CVM4

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: 1-Wire, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 128
• Program Memory Type: External Program Memory
• Ram Size: 144K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.52 V
• Data Converters: A/D 3x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 400-LFBGA
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

Table 48
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
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 6
Table 49
CS, RAS, CAS, CKE, WE setup time
CS, RAS, CAS, CKE, WE hold time
Table 48. DDR2 SDRAM Timing Parameter Table (continued)
Table 49. tlS, tlH Derating Values for DDR2-400, DDR2-533
–1450
+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
65