- 您现在的位置：买卖IC网 > PDF目录80578 > MSC8122TMP4800V (FREESCALE SEMICONDUCTOR INC) 32-BIT, 300 MHz, OTHER DSP, PBGA431 PDF资料下载
参数资料
| 型号： | MSC8122TMP4800V |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 32-BIT, 300 MHz, OTHER DSP, PBGA431 |
| 封装： | FCBGA-431 |
| 文件页数： | 33/48页 |
| 文件大小： | 1158K |
| 代理商： | MSC8122TMP4800V |
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页当前第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
MSC8122 Quad Digital Signal Processor Data Sheet, Rev. 16
Freescale Semiconductor
39
3
Hardware Design Considerations
The following sections discuss areas to consider when the MSC8122 device is designed into a system.
3.1
Use the following guidelines for start-up and power-down sequences:
Assert PORESET and TRST before applying power and keep the signals driven low until the power reaches the
required minimum power levels. This can be implemented via weak pull-down resistors.
CLKIN
can be held low or allowed to toggle during the beginning of the power-up sequence. However, CLKIN must
start toggling before the deassertion of PORESET and after both power supplies have reached nominal voltage levels.
If possible, bring up VDD/VCCSYN and VDDH together. If it is not possible, raise VDD/VCCSYN first and then bring up
VDDH. VDDH should not exceed VDD/VCCSYN until VDD/VCCSYN reaches its nominal voltage level. Similarly, bring both
voltage levels down together. If that is not possible reverse the power-up sequence, with VDDH going down first and
then VDD/VCCSYN.
Note:
This recommended power sequencing for the MSC8122 is different from the MSC8102. See Section 2.5.2 for
start-up timing specifications.
External voltage applied to any input line must not exceed the I/O supply VDDH by more than 0.8 V at any time, including during
power-up. Some designs require pull-up voltages applied to selected input lines during power-up for configuration purposes.
This is an acceptable exception to the rule. However, each such input can draw up to 80 mA per input pin per device in the
system during start-up.
During the power-up sequence, if VDD rises before VDDH (see Figure 6), current can pass from the VDD supply through the
device ESD protection circuits to the VDDH supply. The ESD protection diode can allow this to occur when VDD exceeds VDDH
by more than 0.8 V. Design the power supply to prevent or minimize this effect using one of the following optional methods:
Figure 31. Test Access Port Timing Diagram
Figure 32. TRST Timing Diagram
TCK
(Input)
TDI
(Input)
TDO
(Output)
TDO
(Output)
VIH
VIL
Input Data Valid
Output Data Valid
TMS
708
709
710
711
TCK
(Input)
TRST
(Input)
713
712
相关PDF资料 |
PDF描述 |
|---|---|
| MPC8545CVUATGA | 32-BIT, 1200 MHz, MICROPROCESSOR, CBGA783 |
| MPC8545VTAQG | 32-BIT, 1000 MHz, MICROPROCESSOR, PBGA783 |
| MPC8547CHXATJ | 32-BIT, 1200 MHz, MICROPROCESSOR, CBGA783 |
| MPC8547CVTAUGA | 32-BIT, 1000 MHz, MICROPROCESSOR, PBGA783 |
| MPC8547ECHXAUGB | 32-BIT, 1000 MHz, MICROPROCESSOR, CBGA783 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MSC8122TMP6400 | 功能描述:数字信号处理器和控制器 - DSP, DSC PBGA PB 1.2V 105C 400MHZ RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| MSC8122TMP6400V | 功能描述:DSP 16BIT 400MHZ MULTI 431FCPBGA RoHS:否 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:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| MSC8122TVT4800V | 功能描述:IC DSP QUAD 16B 300MHZ 431FCPBGA 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:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| MSC8122TVT6400 | 功能描述:DSP 16BIT 400MHZ MULTI 431FCPBGA 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:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| MSC8122TVT6400V | 功能描述:IC DSP QUAD 16B 400MHZ 431FCPBGA 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:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
发布紧急采购，3分钟左右您将得到回复。