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| 型号： | DSPB56371AF180 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 10/68页 |
| 文件大小： | 0K |
| 描述： | IC DSP 24BIT 180MHZ 80-LQFP |
| 标准包装： | 90 |
| 系列： | DSP56K/Symphony |
| 类型： | 音频处理器 |
| 接口： | 主机接口，I²C，SAI，SPI |
| 时钟速率： | 180MHz |
| 非易失内存： | ROM（384 kB） |
| 芯片上RAM： | 264kB |
| 电压 - 输入/输出： | 3.30V |
| 电压 - 核心： | 1.25V |
| 工作温度： | -40°C ~ 115°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 80-LQFP |
| 供应商设备封装： | 80-LQFP（14x14） |
| 包装： | 托盘 |
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DSP56371 Data Sheet, Rev. 4.1
Signal/Connection Descriptions
Freescale Semiconductor
18
MOSI
Input or
output
Tri-stated
SPI Master-Out-Slave-In—When the SPI is configured as a master, MOSI is the
master data output line. The MOSI signal is used in conjunction with the MISO
signal for transmitting and receiving serial data. MOSI is the slave data input line
when the SPI is configured as a slave. This signal is a Schmitt-trigger input when
configured for the SPI Slave mode.
HA0
Input
I2C Slave Address 0—This signal uses a Schmitt-trigger input when configured
for the I2C mode. When configured for I2C slave mode, the HA0 signal is used to
form the slave device address. HA0 is ignored when configured for the I2C master
mode.
This signal is tri-stated during hardware, software and individual reset. Thus,
there is no need for an external pull-up in this state.
Internal Pull up resistor.
This input is 5 V tolerant.
SS
Input
Tri-stated
SPI Slave Select—This signal is an active low Schmitt-trigger input when
configured for the SPI mode. When configured for the SPI Slave mode, this signal
is used to enable the SPI slave for transfer. When configured for the SPI master
mode, this signal should be kept deasserted (pulled high). If it is asserted while
configured as SPI master, a bus error condition is flagged. If SS is deasserted,
the SHI ignores SCK clocks and keeps the MISO output signal in the
high-impedance state.
HA2
Input
I2C Slave Address 2—This signal uses a Schmitt-trigger input when configured
for the I2C mode. When configured for the I2C Slave mode, the HA2 signal is used
to form the slave device address. HA2 is ignored in the I2C master mode.
This signal is tri-stated during hardware, software and individual reset. Thus,
there is no need for an external pull-up in this state.
Internal Pull up resistor.
This input is 5 V tolerant.
HREQ
Input or
Output
Tri-stated
Host Request—This signal is an active low Schmitt-trigger input when
configured for the master mode but an active low output when configured for the
slave mode.
When configured for the slave mode, HREQ is asserted to indicate that the SHI
is ready for the next data word transfer and deasserted at the first clock pulse of
the new data word transfer. When configured for the master mode, HREQ is an
input. When asserted by the external slave device, it will trigger the start of the
data word transfer by the master. After finishing the data word transfer, the master
will await the next assertion of HREQ to proceed to the next transfer.
This signal is tri-stated during hardware, software, personal reset, or when the
HREQ1–HREQ0 bits in the HCSR are cleared. There is no need for an external
pull-up in this state.
Internal Pull up resistor.
This input is 5 V tolerant.
Table 7. Serial Host Interface Signals (continued)
Signal
Name
Signal Type
State
during
Reset
Signal Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DSPB56371AF180 | 制造商:Freescale Semiconductor 功能描述:Digital Signal Processor (DSP) IC |
| DSPB56374AE | 功能描述:数字信号处理器和控制器 - DSP, DSC PB-FREE 52 LQFP 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 |
| DSPB56374AEB | 制造商:Freescale Semiconductor 功能描述:52 LQFP PB-FREE W/ BI - Bulk |
| DSPB56374AEC | 功能描述:数字信号处理器和控制器 - DSP, DSC 52 LQFP AUTOMOTIVE 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 |
| DSPB56374AF | 功能描述:数字信号处理器和控制器 - DSP, DSC PB-FREE 80 LQFP 14X14MM 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 |
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