参数资料
型号: SAK-XC866-1FRA
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
封装: PLASTIC, GREEN, TSSOP-38
文件页数: 71/116页
文件大小: 1640K
代理商: SAK-XC866-1FRA
XC866
Functional Description
Data Sheet
54
V1.2, 2007-10
3.7
Reset Control
The XC866 has five types of reset: power-on reset, hardware reset, watchdog timer
reset, power-down wake-up reset, and brownout reset.
When the XC866 is first powered up, the status of certain pins (see Table 20) must be
defined to ensure proper start operation of the device. At the end of a reset sequence,
the sampled values are latched to select the desired boot option, which cannot be
modified until the next power-on reset or hardware reset. This guarantees stable
conditions during the normal operation of the device.
In order to power up the system properly, the external reset pin RESET must be asserted
until VDDC reaches 0.9*VDDC. The delay of external reset can be realized by an external
capacitor at RESET pin. This capacitor value must be selected so that VRESET reaches
0.4 V, but not before VDDC reaches 0.9* VDDC.
A typical application example is shown in Figure 21. VDDP capacitor value is 300 nF.
VDDC capacitor value is 220 nF. The capacitor connected to RESET pin is 100 nF.
Typically, the time taken for VDDC to reach 0.9*VDDC is less than 50 s once VDDP
reaches 2.3V. Hence, based on the condition that 10% to 90% VDDP (slew rate) is less
than 500
s, the RESET pin should be held low for 500 s typically. See Figure 22.
Figure 21
Reset Circuitry
VSSP
VDDP
VDDC
VSSC
3.3V/5V
RESET
EVR
e.g. 300nF
220nF
typ.
100nF
XC866
30k
相关PDF资料
PDF描述
SAK-XC866-4FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAK-XC866-4RRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAK-XC866-4RRI3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866-2FRA3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866-2FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
相关代理商/技术参数
参数描述
SAKXC8661FRA AA 制造商:Infineon Technologies AG 功能描述:
SAK-XC866-1FRA AB 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 3.3V 26.67MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAKXC8661FRAAB 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC866-1FRI AB 功能描述:8位微控制器 -MCU 8 BIT FLASH SINGLE CHIP CNTRLR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC866-2FRA BC 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 3.3V 26.67MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT