- 您现在的位置：买卖IC网 > PDF目录80493 > MPC8248CVRTIEX (FREESCALE SEMICONDUCTOR INC) 32-BIT, 400 MHz, RISC PROCESSOR, PBGA516 PDF资料下载
参数资料
| 型号： | MPC8248CVRTIEX |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 400 MHz, RISC PROCESSOR, PBGA516 |
| 封装： | 27 X 27 MM, 2.25 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, MS-034AAL-1, BGA-516 |
| 文件页数： | 15/60页 |
| 文件大小： | 918K |
| 代理商： | MPC8248CVRTIEX |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页
MPC8272 PowerQUICC II Family Hardware Specifications, Rev. 1.5
22
Freescale Semiconductor
AC Electrical Characteristics
Figure 10 shows signal behavior in MEMC mode.
Figure 10. MEMC Mode Diagram
NOTE
Generally, all MPC8272 bus and system output signals are driven from the
rising edge of the input clock (CLKin). Memory controller signals,
however, trigger on four points within a CLKin cycle. Each cycle is divided
by four internal ticks: T1, T2, T3, and T4. T1 always occurs at the rising
edge, and T3 at the falling edge, of CLKin. However, the spacing of T2 and
T4 depends on the PLL clock ratio selected, as shown in Table 13.
Figure 11. Internal Tick Spacing for Memory Controller Signals
Table 13. Tick Spacing for Memory Controller Signals
PLL Clock Ratio
Tick Spacing (T1 Occurs at the Rising Edge of CLKin)
T2
T3
T4
1:2, 1:3, 1:4, 1:5, 1:6
1/4 CLKin
1/2 CLKin
3/4 CLKin
1:2.5
3/10 CLKin
1/2 CLKin
8/10 CLKin
1:3.5
4/14 CLKin
1/2 CLKin
11/14 CLKin
CLKin
V_CLK
Memory controller signals
sp34/sp30
CLKin
T1
T2
T3
T4
CLKin
T1
T2
T3
T4
for 1:2.5
for 1:3.5
CLKin
T1
T2
T3
T4
for 1:2, 1:3, 1:4, 1:5, 1:6
相关PDF资料 |
PDF描述 |
|---|---|
| M3XXLFXIT | OTHER CLOCK GENERATOR, QCC16 |
| MPC8535EAVTAKG | 32-BIT, 600 MHz, MICROPROCESSOR, PBGA783 |
| MPC8536EAVTAUL | 32-BIT, 1333 MHz, MICROPROCESSOR, PBGA783 |
| MPC8541CPXALE | 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783 |
| MPC8541ECPXAQE | 32-BIT, 1000 MHz, RISC PROCESSOR, PBGA783 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC8248CZQ | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MPC8272 PowerQUICC II Family Hardware Specifications |
| MPC8248CZQB | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8248CZQE | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8248CZQI | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8248CZQM | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MPC8272 PowerQUICC II Family Hardware Specifications |
发布紧急采购，3分钟左右您将得到回复。