COP8CCR9KMT8 (National) PDF资料下载 Datasheet(89/111 页)

您现在的位置：买卖IC网 > PDF目录1908 > COP8CCR9KMT8 (National Semiconductor)IC MCU EEPROM 8BIT 32K 56-TSSOP PDF资料下载

参数资料

型号：	COP8CCR9KMT8
厂商：	National Semiconductor
文件页数：	89/111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：	*COP8CCR9KMT8

SNOS535I – OCTOBER 2000 – REVISED MARCH 2013

The Software Trap indicates an unusual or unknown error condition. Generally, returning to normal

execution at the point where the Software Trap occurred cannot be done reliably. Therefore, the Software

Trap service routine should re-initialize the stack pointer and perform a recovery procedure that re-starts

the software at some known point, similar to a device Reset, but not necessarily performing all the same

functions as a device Reset. The routine must also execute the RPND instruction to reset the STPND flag.

Otherwise, all other interrupts will be locked out. To the extent possible, the interrupt routine should record

or indicate the context of the device so that the cause of the Software Trap can be determined.

If the user wishes to return to normal execution from the point at which the Software Trap was triggered,

the user must first execute RPND, followed by RETSK rather than RETI or RET. This is because the

return address stored on the stack is the address of the INTR instruction that triggered the interrupt. The

program must skip that instruction in order to proceed with the next one. Otherwise, an infinite loop of

Software Traps and returns will occur.

Programming a return to normal execution requires careful consideration. If the Software Trap routine is

interrupted by another Software Trap, the RPND instruction in the service routine for the second Software

Trap will reset the STPND flag; upon return to the first Software Trap routine, the STPND flag will have the

wrong state. This will allow maskable interrupts to be acknowledged during the servicing of the first

Software Trap. To avoid problems such as this, the user program should contain the Software Trap

routine to perform a recovery procedure rather than a return to normal execution.

Under normal conditions, the STPND flag is reset by a RPND instruction in the Software Trap service

routine. If a programming error or hardware condition (brownout, power supply glitch, etc.) sets the

STPND flag without providing a way for it to be cleared, all other interrupts will be locked out. To alleviate

this condition, the user can use extra RPND instructions in the main program and in the Watchdog service

routine (if present). There is no harm in executing extra RPND instructions in these parts of the program.

Figure 5-25. VIS Flow Chart

Functional Description

相关代理商/技术参数	参数描述
COP8CCR9LVA7	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
COP8CCR9LVA7/63	制造商:Texas Instruments 功能描述:
COP8CCR9LVA7/63SN	功能描述:闪存 RoHS:否制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel
COP8CCR9LVA7/NOPB	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
COP8CCR9LVA763SN	制造商:National Semiconductor 功能描述:MCU 8-bit COP8 CISC 32KB Flash 5V 68-Pin PLCC

发布紧急采购，3分钟左右您将得到回复。

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购