MCIMX257CVM4 Freescale Semiconductor, MCIMX257CVM4 Datasheet - Page 63
MCIMX257CVM4
Manufacturer Part Number
MCIMX257CVM4
Description
IC MPU I.MX25 IND 400MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX25r
Datasheet
1.MCIMX257CJM4.pdf
(154 pages)
Specifications of MCIMX257CVM4
Core Processor
ARM9
Core Size
32-Bit
Speed
400MHz
Connectivity
1-Wire, CAN, 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCIMX257CVM4
Manufacturer:
TOTO
Quantity:
83
Company:
Part Number:
MCIMX257CVM4
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Freescale Semiconductor
SD21 DQS – DQ Skew (defines the data valid window in read cycles related to DQS)
SD22 DQS DQ HOLD time from DQS
SD23 DQS output access time from SDCLK posedge
ID
DQS (input)
DQ (input)
SDCLK
SDCLK
Figure 30. Mobile DDR SDRAM DQ versus DQS and SDCLK Read Cycle Timing Diagram
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
Table 49. Mobile DDR SDRAM Read Cycle Timing Parameters
SD23
SD21
Data
Parameter
SD22
Data
Data
Data
Data
Data
tDQSCK
Symbol
tDQSQ
tQH
Data
Min. Max. Unit
2.3
—
—
Data
0.85
6.7
—
ns
ns
ns
63
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