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| 型号： | COP8CBR9KMT8 |
| 厂商： | National Semiconductor |
| 文件页数： | 82/111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 |
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SNOS535I – OCTOBER 2000 – REVISED MARCH 2013
5.14.1.1.5 Busy Bit
The ADBSY bit of the ENAD register is used to control starting and stopping of the A/D conversion. When
ADBSY is cleared, the prescale logic is disabled and the A/D clock is turned off, drawing minimal power.
Setting the ADBSY bit starts the A/D clock and initiates a conversion based on the values currently in the
ENAD register. Normal completion of an A/D conversion clears the ADBSY bit and turns off the A/D
Converter.
If the user wishes to restart a conversion which is already in progress, this can be accomplished only by
writing a zero to the ADBSY bit to stop the current conversion and then by writing a one to ADBSY to start
a new conversion. This can be done in two consecutive instructions.
5.14.1.2 A/D Result Registers
There are two result registers for the A/D converter: the high 8 bits of the result and the low 2-bits of the
result. The format of these registers is shown in Figure 5-21, Figure 5-22. Both registers are read/write
registers, but in normal operation, the hardware writes the value into the register when the conversion is
complete and the software reads the value. Both registers are undefined upon Reset. They hold the
previous value until a new conversion overwrites them. When reading ADRSTL, bits 5-0 will read as 0.
Table 5-23. ADRSTH
Bit 7
Bit 0
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Table 5-24. ADRSTL
Bit 7
Bit 0
Bit 1
Bit 0
0
5.14.2 A/D OPERATION
The A/D conversion is completed within fifteen A/D converter clocks. The A/D Converter interface works
as follows. Setting the ADBSY bit in the A/D control register ENAD initiates an A/D conversion. The
conversion sequence starts at the beginning of the write to ENAD operation which sets ADBSY, thus
powering up the A/D. At the first edge of the Converter clock following the write operation, the sample
signal turns on for three clock cycles. At the end of the conversion, the internal conversion complete signal
will clear the ADBSY bit and power down the A/D. The A/D 10-bit result is immediately loaded into the A/D
result registers (ADRSTH and ADRSTL) upon completion.
Inadvertent changes to the ENAD register during conversion are prevented by the control logic of the A/D.
Any attempt to write any bit of the ENAD Register except ADBSY, while ADBSY is a one, is ignored.
ADBSY must be cleared either by completion of an A/D conversion or by the user before the prescaler,
conversion mode or channel select values can be changed. After stopping the current conversion, the
user can load different values for the prescaler, conversion mode or channel select and start a new
conversion in one instruction.
5.14.2.1 Prescaler
The A/D Converter (A/D) contains a prescaler option that allows two different clock speed selections as
shown in Table 5-22. The A/D clock frequency is equal to MCLK divided by the prescaler value. Note that
the prescaler value must be chosen such that the A/D clock falls within the specified range. The maximum
A/D frequency is 1.25 MHz. This equates to a 800 ns A/D clock cycle.
72
Functional Description
Copyright 2000–2013, Texas Instruments Incorporated
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| 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 |
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