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| 型号： | MPC8314VRAGDA |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 5/101页 |
| 文件大小： | 0K |
| 描述： | MPU POWERQUICC II PRO 620-PBGA |
| 标准包装： | 36 |
| 系列： | MPC83xx |
| 处理器类型： | 32-位 MPC83xx PowerQUICC II Pro |
| 速度： | 400MHz |
| 电压： | 1V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 620-BBGA 裸露焊盘 |
| 供应商设备封装： | 620-PBGA（29x29） |
| 包装： | 托盘 |
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MPC8314E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
11
Electrical Characteristics
3.2
Power Sequencing
The MPC8314E does not require the core supply voltage (VDD and VDDC) and I/O supply voltages
(GVDD, LVDDx_ON, LVDDx_OFF, NVDDx_ON and NVDDx_OFF) to be applied in any particular
order. During the power ramp up, before the power supplies are stable, if the I/O voltages are supplied
before the core voltage, there may be a period of time when all input and output pins be actively driven
and cause contention and/or excessive current. In order to avoid actively driving the I/O pins and to
eliminate excessive current draw, apply the continuous core voltage (VDDC) before the continuous I/O
voltages (LVDDx_ON and NVDDx_ON) and switchable core voltage (VDD) before the switchable I/O
voltages (GVDD, LVDDx_OFF, and NVDDx_OFF). PORESET should be asserted before the continuous
power supplies fully ramp up. In the case where the core voltage is applied first, the core voltage supply
must rise to 90% of its nominal value before the I/O supplies reach 0.7 V, see Figure 3. Once all the power
supplies are stable, wait for a minimum of 32 clock cycles before negating PORESET.
The I/O power supply ramp-up slew rate should be slower than 4V/100 s, this requirement is for ESD
circuit.
This figure shows the power-up sequencing for switchable and continuous supplies.
Figure 3. Power-Up Sequencing
When switching from normal mode to D3 warm (standby) mode, first turn off the switchable I/O voltage
supply and then turn off the switchable core voltage supply. Similarly, when switching from D3 warm
(standby) mode to normal mode, first turn on the switchable core voltage supply and then turn on the
switchable I/O voltage supply.
DUART, system control, I2C, JTAG,SPI
42
NVDD = 3.3 V
GPIO signals
42
NVDD = 3.3 V
eTSEC
42
LVDD = 3.3 V / 2.5 V
1 Output Impedance can also be adjusted through configurable options in DDR
Control Driver Register (DDRCDR). See the MPC8315E PowerQUICC II Pro
Integrated Host Processor Family Reference Manual.
Table 3. Output Drive Capability (continued)
Driver Type
Output
Impedance (
)
Supply
Voltage
Continuous I/O Voltage
Continuous Core Voltage
0.7 V
90%
t
V
Switchable I/O Voltage
Switchable Core Voltage (VDD)
0.7 V
90%
t
V
Power sequence for continuous power supplies
Power sequence for switchable power supplies
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相关代理商/技术参数 |
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| MPC8315 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MPC8315E PowerQUICC II Pro Processor Hardware Specifications |
| MPC8315CVRADDA | 功能描述:微处理器 - MPU NON-ENCRYPT RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC8315CVRAFDA | 功能描述:微处理器 - MPU NON-ENCRYPT RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC8315CVRAGDA | 功能描述:微处理器 - MPU NON-ENCRYPT RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC8315E | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
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