参数资料
型号: COP8CBR9KMT8
厂商: National Semiconductor
文件页数: 33/111页
文件大小: 0K
描述: IC MCU EEPROM 8BIT 32K 56-TSSOP
标准包装: 34
系列: COP8™ 8C
核心处理器: COP8
芯体尺寸: 8-位
速度: 20MHz
连通性: Microwire/Plus(SPI),UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 49
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 16x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 56-TFSOP(0.240",6.10mm 宽)
包装: 管件
其它名称: *COP8CBR9KMT8
SNOS535I – OCTOBER 2000 – REVISED MARCH 2013
Figure 5-3. Reset Circuit Using External Reset
5.7.2
On-Chip Brownout Reset
When enabled, the device generates an internal reset as VCC rises. While VCC is less than the specified
brownout voltage (Vbor), the device is held in the reset condition and the Idle Timer is preset with 00Fx
(240–256 tC). When VCC reaches a value greater than Vbor, the Idle Timer starts counting down. Upon
underflow of the Idle Timer, the internal reset is released and the device will start executing instructions.
This internal reset will perform the same functions as external reset. Once VCC is above the Vbor and this
initial Idle Timer time-out takes place, instruction execution begins and the Idle Timer can be used
normally. If, however, VCC drops below the selected Vbor, an internal reset is generated, and the Idle Timer
is preset with 00Fx. The device now waits until VCC is greater than Vbor and the countdown starts over.
When enabled, the functional operation of the device, at frequency, is ensured down to the Vbor level.
Figure 5-4. Brownout Reset Operation
One exception to the above is that the brownout circuit will insert a delay of approximately 3 ms on power
up or any time the VCC drops below a voltage of about 1.8V. The device will be held in Reset for the
duration of this delay before the Idle Timer starts counting the 240 to 256 tC. This delay starts as soon as
the VCC rises above the trigger voltage (approximately 1.8V). This behavior is shown in Figure 5-4.
In Case 1, VCC rises from 0V and the on-chip RESET is undefined until the supply is greater than
approximately 1.0V. At this time the brownout circuit becomes active and holds the device in RESET. As
the supply passes a level of about 1.8V, a delay of about 3 ms (td) is started and the Idle Timer is preset
to a value between 00F0 and 00FF (hex). Once VCC is greater than Vbor and td has expired, the Idle Timer
is allowed to count down (tid).
28
Functional Description
Copyright 2000–2013, Texas Instruments Incorporated
Product Folder Links: COP8CBR9 COP8CCR9 COP8CDR9
相关PDF资料
PDF描述
COP8CBR9HLQ8 IC MCU CMOS 8BIT 44LLP
MC9S08SH32VTJ MCU 8BIT 32K FLASH 20-TSSOP
MC9S08SH32VTG MCU 8BIT 32K FLASH 16-TSSOP
MC9S08SH16VWL MCU 8BIT 16K FLASH 28-SOIC
MC9S08SH16VTL MCU 8BIT 16K FLASH 28-TSSOP
相关代理商/技术参数
参数描述
COP8CBR9LVA8 功能描述:IC MCU EEPROM 8BIT 32K 68PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:COP8™ 8C 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C,IrDA,LIN,SPI,UART/USART 外围设备:DMA,PDR,POR,PVD,PWM,温度传感器,WDT 输入/输出数:26 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN,36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND
COP8CCE9 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit CMOS Flash Microcontroller with 8k Memory, Virtual EEPROM, 10-Bit A/D and Brownout Reset
COP8CCE9HLQ7 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit CMOS Flash Microcontroller with 8k Memory, Virtual EEPROM, 10-Bit A/D and Brownout Reset
COP8CCE9HLQ9 功能描述:IC MCU FLASH 8BIT 8K A/D 44LLP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:COP8™ 8C 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN,SCI,SPI 外围设备:POR,PWM,温度传感器,WDT 输入/输出数:21 程序存储器容量:40KB(20K x 16) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
COP8CCE9HVA7 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