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參數(shù)資料
| 型號： | MCF5235CVM150 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 150 MHz, RISC PROCESSOR, PBGA256 |
| 封裝： | ROHS COMPLIANT, MAPBGA-256 |
| 文件頁數(shù)： | 2/48頁 |
| 文件大?。?/td> | 666K |
| 代理商： | MCF5235CVM150 |
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MCF523x Integrated Microprocessor Hardware Specification, Rev. 4
Design Recommendations
Freescale Semiconductor
10
5.2
Power Supply
33
μF, 0.1 μF, and 0.01 μF across each power supply
5.2.1
Supply Voltage Sequencing and Separation Cautions
OVDD is specified relative to VDD.
Figure 1. Supply Voltage Sequencing and Separation Cautions
5.2.1.1
Power Up Sequence
If OVDD is powered up with VDD at 0 V, then the sense circuits in the I/O pads cause all pad output drivers
connected to the OVDD to be in a high impedance state. There is no limit on how long after OVDD powers
up before VDD must power up. VDD should not lead the OVDD or VDDPLL by more than 0.4 V during
power ramp-up, or there will be high current in the internal ESD protection diodes. The rise times on the
power supplies should be slower than 1
μs to avoid turning on the internal ESD protection clamp diodes.
The recommended power up sequence is as follows:
1. Use 1 ms or slower rise time for all supplies.
2. VDD and OVDD/VDDPLL should track up to 0.9 V, then separate for the completion of ramps with
OVDD going to the higher external voltages. One way to accomplish this is to use a low drop-out
voltage regulator.
Supplies Stable
2
1
3.3V
2.5V
1.5V
0
Time
Notes:
VDD should not exceed OVDD or VDDPLL by more than 0.4 V
at any time, including power-up.
Recommended that VDD should track OVDD/VDDPLL up to
0.9 V, then separate for completion of ramps.
Input voltage must not be greater than the supply voltage (OVDD,
VDD, or VDDPLL) by more than 0.5 V at any time, including during power-up.
Use 1 ms or slower rise time for all supplies.
1.
2.
3.
4.
DC
P
o
w
e
rSuppl
y
V
o
lt
a
g
e
VDD
OVDD, VDDPLL
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| MCF5249VM140 | 32-BIT, 140 MHz, RISC PROCESSOR, PBGA160 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MCF5235CVM150 | 制造商:Freescale Semiconductor 功能描述:Microprocessor IC |
| MCF5235CVM150J | 功能描述:32位微控制器 - MCU V2CORE 64KSRAM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT |
| MCF5235CVM150J | 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU 150 MHz 256-BGA |
| MCF5235EC | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Microprocessor Hardware Specification |
| MCF523X | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Microprocessor Hardware Specification |
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