MCF537x ColdFire Microprocessor Data Sheet, Rev. 4
參數(shù)資料
型號(hào)： MCF5372LCVM240J
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 42/46頁(yè)
文件大?。?/td> 0K
描述： IC MPU RISC 240MHZ 196MABGA
標(biāo)準(zhǔn)包裝： 126
系列： MCF537x
核心處理器： Coldfire V3
芯體尺寸： 32-位
速度： 240MHz
連通性： EBI/EMI，以太網(wǎng)，I²C，SPI，SSI，UART/USART，USB，USB OTG
外圍設(shè)備： DMA，POR，PWM，WDT
輸入/輸出數(shù)： 62
程序存儲(chǔ)器類型： ROMless
RAM 容量： 32K x 8
電壓 - 電源 (Vcc/Vdd)： 1.4 V ~ 3.6 V
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 196-LBGA
包裝： 托盤
Hardware Design Considerations
MCF537x ColdFire Microprocessor Data Sheet, Rev. 4
Freescale Semiconductor
5
3
Hardware Design Considerations
3.1
PLL Power Filtering
To further enhance noise isolation, an external filter is strongly recommended for PLL analog VDD pins. The filter shown in
Figure 2 should be connected between the board VDD and the PLLVDD pins. The resistor and capacitors should be placed as
close to the dedicated PLLVDD pin as possible.
Figure 2. System PLL VDD Power Filter
3.2
USB Power Filtering
To minimize noise, external filters are required for each of the USB power pins. The filter shown in Figure 3 should be
connected between the board EVDD or IVDD and each of the USBVDD pins. The resistor and capacitors should be placed as
close to the dedicated USBVDD pin as possible.
Figure 3. USB VDD Power Filter
NOTE
In addition to the above filter circuitry, a 0.01 F capacitor is also recommended in parallel
with those shown.
3.3
Supply Voltage Sequencing and Separation Cautions
The relationship between SDVDD and EVDD is non-critical during power-up and power-down sequences. SDVDD (2.5V or
3.3V) and EVDD are specified relative to IVDD.
3.3.1
Power Up Sequence
If EVDD/SDVDD are powered up with IVDD at 0 V, the sense circuits in the I/O pads cause all pad output drivers connected to
the EVDD/SDVDD to be in a high impedance state. There is no limit on how long after EVDD/SDVDD powers up before IVDD
must powered up. IVDD should not lead the EVDD, SDVDD, or PLLVDD by more than 0.4 V during power ramp-up or there is
Board IVDD
10
Ω
0.1 F
PLL VDD Pin
10 F
GND
Board EVDD
0
Ω
0.1 F
USB VDD Pin
10 F
GND
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MCF53721CVM240,
MCF5372LCVM240,
MCF5373LCVM240
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