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| 型号： | MSP430F248TRGC |
| 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, QCC64 |
| 封装： | PLASTIC, QFN-64 |
| 文件页数： | 14/91页 |
| 文件大小： | 1246K |
| 代理商： | MSP430F248TRGC |
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MSP430F23x
MSP430F24x(1)
MSP430F2410
SLAS547H
– JUNE 2007 – REVISED AUGUST 2011
Peripherals
Peripherals are connected to the CPU through data, address, and control buses and can be handled using all
instructions. For complete module descriptions, see the MSP430x2xx Family User's Guide (SLAU144).
Oscillator and System Clock
The clock system is supported by the basic clock module that includes support for a 32768-Hz watch crystal
oscillator, an internal very-low-power low-frequency oscillator, an internal digitally-controlled oscillator (DCO), and
a high-frequency crystal oscillator. The basic clock module is designed to meet the requirements of both low
system cost and low power consumption. The internal DCO provides a fast turn-on clock source and stabilizes in
less than 1
s. The basic clock module provides the following clock signals:
Auxiliary clock (ACLK), sourced from a 32768-Hz watch crystal, a high-frequency crystal, or the internal
very-low-power LF oscillator.
Main clock (MCLK), the system clock used by the CPU.
Sub-Main clock (SMCLK), the sub-system clock used by the peripheral modules.
Calibration Data Stored in Information Memory Segment A
Calibration data is stored for the DCO and for the ADC12. It is organized in a tag-length-value (TLV) structure.
Table 14. Tags Used by the ADC Calibration Tags
NAME
ADDRESS
VALUE
DESCRIPTION
TAG_DCO_30
0x10F6
0x01
DCO frequency calibration at VCC = 3 V andTA = 25°C at calibration
TAG_ADC12_1
0x10DA
0x10
ADC12_1 calibration tag
TAG_EMPTY
-
0xFE
Identifier for empty memory areas
Table 15. Labels Used by the ADC Calibration Tags
LABEL
CONDITION AT CALIBRATION / DESCRIPTION
SIZE
ADDRESS OFFSET
CAL_ADC_25T85
INCHx = 0x1010, REF2_5 = 1, TA = 85°C
word
0x000E
CAL_ADC_25T30
INCHx = 0x1010, REF2_5 = 1, TA = 30°C
word
0x000C
CAL_ADC_25VREF_FACTOR
REF2_5 = 1, TA = 30°C, IVREF+ = 1.0 mA
word
0x000A
CAL_ADC_15T85
INCHx = 0x1010, REF2_5 = 0, TA = 85°C
word
0x0008
CAL_ADC_15T30
INCHx = 0x1010, REF2_5 = 0, TA = 30°C
word
0x0006
CAL_ADC_15VREF_FACTOR
REF2_5 = 0, TA = 30°C, IVREF+ = 0.5 mA
word
0x0004
CAL_ADC_OFFSET
External Vref = 1.5 V, fADC12CLK = 5 MHz
word
0x0002
CAL_ADC_GAIN_FACTOR
External Vref = 1.5 V, fADC12CLK = 5 MHz
word
0x0000
CAL_BC1_1MHZ
-
byte
0x0007
CAL_DCO_1MHZ
-
byte
0x0006
CAL_BC1_8MHZ
-
byte
0x0005
CAL_DCO_8MHZ
-
byte
0x0004
CAL_BC1_12MHZ
-
byte
0x0003
CAL_DCO_12MHZ
-
byte
0x0002
CAL_BC1_16MHZ
-
byte
0x0001
CAL_DCO_16MHZ
-
byte
0x0000
Brownout, Supply Voltage Supervisor (SVS)
The brownout circuit is implemented to provide the proper internal reset signal to the device during power on and
power off. The SVS circuitry detects if the supply voltage drops below a user-selectable level and supports both
supply voltage supervision (the device is automatically reset) and supply voltage monitoring (SVM, the device is
not automatically reset).
The CPU begins code execution after the brownout circuit releases the device reset. However, VCC may not have
ramped to VCC(min) at that time. The user must ensure that the default DCO settings are not changed until VCC
reaches VCC(min). If desired, the SVS circuit can be used to determine when VCC reaches VCC(min).
Copyright
2007–2011, Texas Instruments Incorporated
21
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| MSP430F248TRGCR | 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 |
| MSP430F248TRGCT | 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 |
| MSP430F2491TPM | 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 |
| MSP430F2491TPMR | 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 |
| MSP430F2491TRGCR | 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 |
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