參數(shù)資料
型號(hào): MPC745BPX350LE
廠(chǎng)商: MOTOROLA INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, 350 MHz, RISC PROCESSOR, PBGA255
封裝: 21 X 21 MM, PLASTIC, BGA-255
文件頁(yè)數(shù): 27/52頁(yè)
文件大?。?/td> 1276K
代理商: MPC745BPX350LE
MOTOROLA
MPC755 RISC Microprocessor Hardware Specifications
33
System Design Information
1.8
System Design Information
This section provides electrical and thermal design recommendations for successful application of the
MPC755.
1.8.1
PLL Configuration
The MPC755 PLL is configured by the PLL_CFG[0:3] signals. For a given SYSCLK (bus) frequency, the
PLL configuration signals set the internal CPU and VCO frequency of operation. These must be chosen such
that they comply with Table 8. Table 16 shows the valid configurations of these signals and an example
illustrating the core and VCO frequencies resulting from various PLL configurations and example bus
frequencies. In this example, shaded cells represent settings that, for a given SYSCLK frequency, result in
core and/or VCO frequencies that do not comply with the 450-MHz column in Table 8.
Table 16. MPC755 Microprocessor PLL Configuration Example for 450 MHz Parts
PLL_CFG
[0:3]
Example Bus-to-Core Frequency in MHz (VCO Frequency in MHz)
Bus-to-
Core
Multiplier
Core-to
VCO
Multiplier
Bus
33 MHz
Bus
50 MHz
Bus
66 MHz
Bus
75 MHz
Bus
80 MHz
Bus
100 MHz
0100
2x
—200
(400)
1000
3x
2x
—200
(400)
225
(450)
240
(480)
300
(600)
1110
3.5x
2x
—233
(466)
263
(525)
280
(560)
350
(700)
1010
4x
2x
200
(400)
266
(533)
300
(600)
320
(640)
400
(800)
0111
4.5x
2x
225
(450)
300
(600)
338
(675)
360
(720)
450
(900)
1011
5x
2x
250
(500)
333
(666)
375
(750)
400
(800)
1001
5.5x
2x
275
(550)
366
(733)
412
(824)
440
(880)
1101
6x
2x
200
(400)
300
(600)
400
(800)
450
(900)
0101
6.5x
2x
216
(433)
325
(650)
433
(866)
0010
7x
2x
233
(466)
350
(700)
0001
7.5x
2x
250
(500)
375
(750)
1100
8x
2x
266
(533)
400
(800)
0110
10x
2x
333
(666)
0011
PLL off/bypass
PLL off, SYSCLK clocks core circuitry directly, 1x bus-to-core implied
相關(guān)PDF資料
PDF描述
MPC755BRX400LE 32-BIT, 400 MHz, RISC PROCESSOR, CBGA360
MPC750PRX366LE 32-BIT, 366 MHz, RISC PROCESSOR, CBGA360
MPC750PRX400LE 32-BIT, 400 MHz, RISC PROCESSOR, CBGA360
MPC750PRX366RE 32-BIT, 366 MHz, RISC PROCESSOR, CBGA360
MPC740PRX400LE 32-BIT, 400 MHz, RISC PROCESSOR, CBGA255
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC745BVT300LE 功能描述:微處理器 - MPU GF REV2.8105C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC745BVT350LE 功能描述:微處理器 - MPU GF REV2.8105C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC745CPX350LE 功能描述:微處理器 - MPU GF REV 2.8 105C 6W RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC745CPX350LE 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU 350MHZ 255-FCPBGA
MPC745CVT350LE 功能描述:微處理器 - MPU GF REV2.8@6W RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324