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参数资料
型号： MC8641VU1000HE
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 166.66 MHz, MICROPROCESSOR, CBGA1023
封装： 33 X 33 MM, ROHS COMPLIANT, CERAMIC, BGA-1023
文件页数： 13/130页
文件大小： 1493K
代理商： MC8641VU1000HE
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
11
Electrical Characteristics
2.1.3
Output Driver Characteristics
Table 3 provides information on the characteristics of the output driver strengths. The values are
preliminary estimates.
2.2
Power Up/Down Sequence
The MPC8641 requires its power rails to be applied in a specific sequence in order to ensure proper device
operation.
NOTE
The recommended maximum ramp up time for power supplies is 20
milliseconds.
The chronological order of power up is as follows:
1. All power rails other than DDR I/O (Dn_GVDD, and Dn_MVREF).
Table 3. Output Drive Capability
Driver Type
Programmable
Output Impedance
(
Ω)
Supply
Voltage
Notes
DDR1 signal
18
36 (half strength mode)
D
n_GVDD = 2.5 V
4, 9
DDR2 signal
18
36 (half strength mode)
D
n_GVDD = 1.8 V
1, 5, 9
Local Bus signals
45
25
OVDD = 3.3 V
2, 6
eTSEC/10/100 signals
45
T/LVDD = 3.3 V
6
30
T/LVDD = 2.5 V
6
DUART, DMA, Multiprocessor Interrupts, System
Control & Clocking, Debug, Test, Power management,
JTAG and Miscellaneous I/O voltage
45
OVDD = 3.3 V
6
I2C
150
OVDD = 3.3 V
7
SRIO, PCI Express
100
SVDD = 1.1/1.05 V
3, 8
Notes:
1. See the DDR Control Driver registers in the MPC8641D reference manual for more information.
2. Only the following local bus signals have programmable drive strengths: LALE, LAD[0:31], LDP[0:3], LA[27:31], LCKE,
LCS[1:2], LWE[0:3], LGPL1, LGPL2, LGPL3, LGPL4, LGPL5, LCLK[0:2]. The other local bus signals have a fixed drive
strength of 45
Ω. See the POR Impedance Control register in the MPC8641D reference manual for more information about
local bus signals and their drive strength programmability.
3. See Section 17, “Signal Listings,” for details on resistor requirements for the calibration of SD
n_IMP_CAL_TX and
SD
n_IMP_CAL_RX transmit and receive signals.
4. Stub Series Terminated Logic (SSTL-25) type pins.
5. Stub Series Terminated Logic (SSTL-18) type pins.
6. Low Voltage Transistor-Transistor Logic (LVTTL) type pins.
7. Open Drain type pins.
8. Low Voltage Differential Signaling (LVDS) type pins.
9. The drive strength of the DDR interface in half strength mode is at Tj = 105C and at Dn_GVDD (min).
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相关代理商/技术参数
参数描述
MC8641VU1000J 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC8641VU1000K 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC8641VU1000N 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC8641VU1000NB 功能描述:微处理器 - MPU G8 REV 2.0 0.95V 105C 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
MC8641VU1000NC 功能描述:微处理器 - MPU G8 REV 2.1 0.95V 105C 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
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