MC9328MX21SCVK Freescale Semiconductor, MC9328MX21SCVK Datasheet - Page 47

• Manufacturer Part Number: MC9328MX21SCVK
• Description: IC MCU I.MX21 266MHZ 289-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX21r

Specifications of MC9328MX21SCVK

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: 1-Wire, EBI/EMI, I²C, IrDA, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 192
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 1.45 V ~ 3.3 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 289-MAPBGA
• 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: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Compliant

3.15
The following figures
to the SDRAMC module in the i.MX21.
Freescale Semiconductor
Ref
No.
3S
3H
1
2
3
SDRAM clock high-level width
SDRAM clock low-level width
SDRAM clock cycle time
CS, RAS, CAS, WE, DQM setup time
CS, RAS, CAS, WE, DQM hold time
SDCLK
ADDR
DQM
RAS
CAS
SDRAM Memory Controller
WE
DQ
CS
3S
ROW/BA
4S
3S
(Figure 38
3H
Parameter
4H
3H
Table 31. SDRAM Read Cycle Timing Parameter
Figure 38. SDRAM Read Cycle Timing Diagram
through
MC9328MX21 Technical Data, Rev. 3.4
8
COL/BA
3S
3S
Figure
3S
3H
3H
41) and their associated tables specify the timings related
5
3H
Minimum
Note: CKE is high during the read/write cycle.
3.00
3.00
4.78
3.03
7.5
Data
1.8 V ± 0.1 V
6
1
7
3
Maximum
–
–
–
–
–
2
Minimum
7.5
3
3
3
2
3.0 V ± 0.3 V
Maximum
Specifications
–
–
–
–
–
Unit
ns
ns
ns
ns
ns
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