- 您现在的位置：买卖IC网 > PDF目录80398 > MSC8144VT1000B (FREESCALE SEMICONDUCTOR INC) 133 MHz, OTHER DSP, PBGA783 PDF资料下载
参数资料
| 型号： | MSC8144VT1000B |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 133 MHz, OTHER DSP, PBGA783 |
| 封装： | 29 X 29 MM, LEAD FREE, PLASTIC, FCPBGA-783 |
| 文件页数： | 64/80页 |
| 文件大小： | 1250K |
| 代理商： | MSC8144VT1000B |
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页第61页第62页第63页当前第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页
Hardware Design Considerations
MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 16
Freescale Semiconductor
67
3.3
Clock and Timing Signal Board Layout Considerations
When laying out the system board, use the following guidelines:
Keep clock and timing signal paths as short as possible and route with 50
Ω impedance.
Use a serial termination resistor placed close to the clock buffer to minimize signal reflection. Use the following
equation to compute the resistor value:
Rterm = Rim – Rbuf
where Rim = trace characteristic impedance
Rbuf = clock buffer internal impedance.
Note:
See MSC8144 CLKIN and PCI_CLK_IN Board Layout (AN3440) for an example layout.
3.4
Connectivity Guidelines
Note:
Although the package actually uses a ball grid array, the more conventional term pin is used to denote signal
connections in this discussion.
First, select the pin multiplexing mode to allocate the required I/O signals. Then use the guidelines presented in the following
subsections for board design and connections. The following conventions are used in describing the connectivity requirements:
1.
GND indicates using a 10 k
Ω pull-down resistor (recommended) or a direct connection to the ground plane. Direct
connections to the ground plane may yield DC current up to 50mA through the I/O supply that adds to overall power
consumption.
2.
VDD indicates using a 10 kΩ pull-up resistor (recommended) or a direct connection to the appropriate power supply.
Direct connections to the supply may yield DC current up to 50mA through the I/O supply that adds to overall power
consumption.
3.
Mandatory use of a pull-up or pull-down resistor it is clearly indicated as “pull-up/pull-down”.
4.
NC indicates “not connected” and means do not connect anything to the pin.
5.
The phrase “in use” indicates a typical pin connection for the required function.
Note:
Please see recommendations #1 and #2 as mandatory pull-down or pull-up connection for unused pins in case of
subset interface connection.
3.4.1
DDR Memory Related Pins
This section discusses the various scenarios that can be used with DDR1 and DDR2 memory.
Note:
For information about unused differential/non-differential pins in DDR1/DDR2 modes (that is, unused negative lines
of strobes in DDR1), please refer to Table 51.
3.4.1.1
DDR Interface Is Not Used
Table 51. Connectivity of DDR Related Pins When the DDR Interface Is Not Used
Signal Name
Pin Connection
MDQ[0–31]
NC
MDQS[0–3]
NC
MDQS[0–3]
NC
MA[0–15]
NC
MCK[0–2]
NC
MCK[0–2]
NC
MCS[0–1]
NC
相关PDF资料 |
PDF描述 |
|---|---|
| MC9S08SG8CSCR | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDSO8 |
| MC68HC08GR32ACFA | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48 |
| MC68HC08GR32ACFJE | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32 |
| MC68HC805C4P | 8-BIT, EEPROM, 2.1 MHz, MICROCONTROLLER, PDIP40 |
| MC68HC705L2B | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP42 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MSC8144VT800A | 功能描述:IC DSP QUAD 800MHZ 783FCBGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:StarCore 标准包装:40 系列:TMS320DM64x, DaVinci™ 类型:定点 接口:I²C，McASP，McBSP 时钟速率:400MHz 非易失内存:外部 芯片上RAM:160kB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:0°C ~ 90°C 安装类型:表面贴装 封装/外壳:548-BBGA，FCBGA 供应商设备封装:548-FCBGA（27x27） 包装:托盘 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA |
| MSC8144VT800B | 制造商:Freescale Semiconductor 功能描述:DSP 32-Bit 800MHz 800MIPS 783-Pin FCBGA 制造商:Freescale Semiconductor 功能描述:PACSUN REV2.1 NON-E - Bulk 制造商:Freescale Semiconductor 功能描述:ENCRYPTION PACSUN R2.1 783FCPBGA |
| MSC81450M | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS |
| MSC8151 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Single-Core Digital Signal Processor |
| MSC8151SAG1000B | 制造商:Freescale Semiconductor 功能描述:STARCORE DSP, 1X 1GHZ SC3850 CORES, MAPLE-B ACCELERATOR, DDR - Bulk 制造商:Freescale Semiconductor 功能描述:STARCORE DSP, 1X 1GHZ SC3850 CORES, MAPLE-B ACCELERATOR, DDR - Trays 制造商:Freescale Semiconductor 功能描述:IC DSP 1X 1GHZ SC3850 783FCBGA |
发布紧急采购，3分钟左右您将得到回复。