参数资料
型号: MCIMX537CVV8C
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 800 MHz, RISC PROCESSOR, PBGA529
封装: 19 X 19 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, TEPBGA-529
文件页数: 92/172页
文件大小: 4562K
代理商: MCIMX537CVV8C
i.MX53 Applications Processors for Industrial Products, Rev. 3
26
Freescale Semiconductor
Electrical Characteristics
4.2.2
Power-Down Sequence
Power-down sequence should follow one of the following two options:
Option 1: Switch all supplies down simultaneously with further free discharge. A deviation of few
microseconds of actual power-down of the different power rails is acceptable.
Option 2: Switch down supplies, in any order, keeping the following rules:
NVCC_CKIH must be powered down at the same time or after the UHVIO IO cell supplies (for
full supply list, refer to Table 6, Ultra High voltage I/O (UHVIO) supplies). A deviation of few
microseconds of actual power-down of the different power rails is acceptable.
VDD_REG must be powered down at the same time or after NVCC_EMI_DRAM supply. A
deviation of few microseconds of actual power-down of the different power rails is acceptable.
If all of the following conditions are met:
—1. VDD_REG is powered down to 0V (Not Hi-Z)
—2. VDD_DIG_PLL and VDD_ANA_PLL are provided externally,
—3. VDD_REG is powered down before VDD_DIG_PLL and VDD_ANA_PLL
Then the following rule should be kept: VDD_REG output impedance must be higher than 1 k
Ω,
when inactive.
4.2.3
Power Supplies Usage
All IO pins should not be externally driven while the IO power supply for the pin (NVCC_xxx) is
off. This can cause internal latch-up and malfunctions due to reverse current flows. For information
about IO power supply of each pin refer to “Power Rail” columns in pin list tables of Section 6,
If not using SATA interface and the embedded thermal sensor, the VP and VPH should be
grounded. In particular, keeping VPH turned OFF while the VP is powered ON is not
recommended and might lead to excessive power consumption.
When internal clock source is used for SATA temperature monitor the USB_PHY supplies and
PLL need to be active because they are providing the clock.
If not using TVE the module, the TVDAC_DHVDD and TVDAC_AHVDDRGB can remain
floating. If only the GPIO pads in TVDAC_AHVDDRGB domain are in use, the supplies can be
set to GPIO pad voltage range (1.65 V to 3.1 V).
4.3
I/O DC Parameters
This section includes the DC parameters of the following I/O types:
General Purpose I/O (GPIO)
Double Data Rate 3 I/O (DDR3) for DDR2/LVDDR2, LPDDR2 and DDR3 modes
Low Voltage I/O (LVIO)
Ultra High Voltage I/O (UHVIO)
LVDS I/O
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相关代理商/技术参数
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