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參數資料
| 型號： | MPC852TVR100 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | Hardware Specifications |
| 中文描述： | 硬件規(guī)格 |
| 文件頁數： | 11/80頁 |
| 文件大?。?/td> | 3080K |
| 代理商： | MPC852TVR100 |
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MPC852T Hardware Specifications, Rev. 3.1
Freescale Semiconductor
11
Mandatory Reset Configurations
One consequence of multiple power supplies is that when power is initially applied, the voltage rails ramp up at
different rates. The rates depend on the nature of the power supply, the type of load on each power supply, and the
manner in which different voltages are derived. The following restrictions apply:
V
DDL
must not exceed V
DDH
during power-on reset or power down.
V
DDL
must not exceed 1.9 V, and V
DDH
must not exceed 3.465.
These cautions are necessary for the long-term reliability of the part. If they are violated, the electrostatic discharge
(ESD) protection diodes are forward-biased, and excessive current can flow through these diodes. If the system
power supply design does not control the voltage sequencing, the circuit shown in
Figure 2
can be added to meet
these requirements. The MUR420 Schottky diodes control the maximum potential difference between the external
bus and core power supplies on power-on reset, and the 1N5820 diodes regulate the maximum potential difference
on power-down.
Figure 2. Example Voltage Sequencing Circuit
10 Mandatory Reset Configurations
The MPC852T requires a mandatory configuration during reset.
If hardware reset configuration word (HRCW) is enabled, by asserting the RSTCONF during HRESET assertion,
the HRCW[DBGC] value that is needed to be set to binary X1 in the hardware reset configuration word (HRCW)
and the SIUMCR[DBGC] should be programmed with the same value in the boot code after reset.
If hardware reset configuration word (HRCW) is disabled, by negating the RSTCONF during the HRESET
assertion, the SIUMCR[DBGC] should be programmed with binary X1 in the boot code after reset.
V
DDH
V
DDL
1N5820
MUR420
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MPC852TVR100A | 功能描述:微處理器 - MPU Ethernet 100 MHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC852TVR100A | 制造商:Freescale Semiconductor 功能描述:IC COMMUNICATIONS CONTROLLER CMOS BGA |
| MPC852TVR50 | 制造商:Freescale Semiconductor 功能描述: |
| MPC852TVR50A | 功能描述:微處理器 - MPU Ethernet 50 MHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC852TVR66 | 功能描述:IC MPU POWERQUICC 66MHZ 256-PBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC8xx 標準包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點:- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應商設備封裝:357-PBGA（25x25） 包裝:托盤 |
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