参数资料
型号: MSP430F4793IPZ
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP100
封装: GREEN, PLASTIC, QFP-100
文件页数: 70/79页
文件大小: 1322K
代理商: MSP430F4793IPZ
MSP430F47x3, MSP430F47x4
MIXED SIGNAL MICROCONTROLLER
SLAS545C MAY 2007 REVISED MARCH 2011
72
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
JTAG fuse check mode
Devices that have the fuse on the TDI/TCLK terminal have a fuse check mode that tests the continuity of the
fuse the first time the JTAG port is accessed after a power-on reset (POR). When activated, a fuse-check current
(I(TF)) of 1 mA at 3 V can flow from the TDI/TCLK pin to ground if the fuse is not burned. Care must be taken
to avoid accidentally activating the fuse check mode and increasing overall system power consumption.
Activation of the fuse-check mode occurs with the first negative edge on the TMS pin after power up or if the
TMS is being held low during power up. The second positive edge on the TMS pin deactivates the fuse-check
mode. After deactivation, the fuse-check mode remains inactive until another POR occurs. After each POR the
fuse check mode has the potential to be activated.
The fuse check current only flows when the fuse check mode is active and the TMS pin is in a low state (see
Figure 27). Therefore, the additional current flow can be prevented by holding the TMS pin high (default
condition). The JTAG pins are terminated internally and, therefore, do not require external termination.
Time TMS Goes Low After POR
TMS
I(TF)
ITDI/TCLK
Figure 27. Fuse-Check Mode Current
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相关代理商/技术参数
参数描述
MSP430F4793IPZR 功能描述:16位微控制器 - MCU 16B Ultra-Lo-Pwr MCU RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MSP430F4794IPZ 功能描述:16位微控制器 - MCU 16B Ultra-Lo-Pwr MCU RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MSP430F4794IPZR 功能描述:16位微控制器 - MCU 16B Ultra-Lo-Pwr MCU RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MSP430F479IPN 功能描述:16位微控制器 - MCU 16B Ultra-Lo-Pwr MCU 32KB Fl 2KB RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MSP430F479IPNR 功能描述:16位微控制器 - MCU 16B Ultra-Lo-Pwr MCU 32KB Fl 2KB RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT