参数资料
型号: MC9328MX21CVH
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 266 MHz, MICROPROCESSOR, PBGA289
封装: 17 X 17 MM, 1.45 MM HEIGHT, 0.80 MM PITCH, MAPBGA-289
文件页数: 14/106页
文件大小: 1932K
代理商: MC9328MX21CVH
Specifications
MC9328MX21 Product Preview, Rev. 1.1
Freescale Semiconductor
15
3
Specifications
This section contains the electrical specifications and timing diagrams for the i.MX21 processor.
3.1
Maximum Ratings
Table 3 provides information on maximum ratings.
3.2
Recommended Operating Range
Table 4 provides the recommended operating ranges for the supply voltages. The i.MX21 processor has multiple
pairs of VDD and VSS power supply and return pins. QVDD, QVDDx, and QVSS pins are used for internal logic.
All other VDD and VSS pins are for the I/O pads voltage supply, and each pair of VDD and VSS provides power
to the enclosed I/O pads. This design allows different peripheral supply voltage levels in a system.
Because AVDD pins are supply voltages to the analog pads, it is recommended to isolate and noise-filter the
AVDD pins from other VDD pins.
For more information about I/O pads grouping per VDD, please refer to Table 4 on page 15.
Supply Pins – Analog Modules
VDDA
(formally AVDD)
Supply for analog blocks
QVSS (internally
connected to AVSS)
Quiet GND for analog blocks (QVSS and AVSS are synonymous)
Internal Power Supply
QVDD
Power supply pins for silicon internal circuitry
QVSS
Quiet GND pins for silicon internal circuitry
QVDDX
Power supply pin for the ARM core, connect directly to QVDD
Table 3. Maximum Ratings
Rating
Symbol
Minimum
Maximum
Unit
Supply voltage
Vdd
-0.3
3.3
V
Maximum operating temperature range of i.MX21
TA
- 40 / -30 / 0
70 / 85
°C
Storage temperature
Test
-55
150
°C
Table 4. Recommended Operating Range
Rating
Symbol
Minimum
Maximum
Unit
I/O supply voltage
NVDD 2, 3, 4, 5, 6
2.70
3.30
V
I/O supply voltage
NVDD 1
1.70
3.30
V
Table 2. i.MX21 Signal Descriptions (Continued)
Signal Name
Function/Notes
相关PDF资料
PDF描述
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