參數(shù)資料
型號(hào)： MSP430P325IPG
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 16-BIT, OTPROM, 3.3 MHz, RISC MICROCONTROLLER, PQFP64
封裝： GREEN, PLASTIC, QFP-64
文件頁(yè)數(shù)： 3/37頁(yè)
文件大?。?/td> 534K
代理商： MSP430P325IPG
MSP430P325
MIXED SIGNAL MICROCONTROLLER
SLAS164A – FEBRUARY 1998 – REVISED MARCH 2000
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
LCD drive
Liquid crystal displays (LCDs) for static, 2-, 3- and 4-MUX operations can be driven directly. The controller LCD
logic operation is defined by software using memory-bit manipulation. LCD memory is part of the LCD module,
not part of data memory. Eight mode and control bits define the operation and current consumption of the LCD
drive. The information for the individual digits can be easily obtained using table programming techniques
combined with the correct addressing mode. The segment information is stored in LCD memory using
instructions for memory manipulation.
The drive capability is mainly defined by the external resistor divider that supports the analog levels for 2-, 3-
and 4-MUX operation. Groups of the LCD segment lines can be selected for digital output signals. The
MSP430x32x configuration has four common signal lines and 21 segment lines.
A/D converter
The analog-to-digital converter (ADC) is a cascaded converter type that converts analog signals from VCC to
GND. It is a 12+2 bit converter with a software or automatically-controlled range select. Five inputs can be
selected for analog or digital function. A ratiometric current source can be used on four of the analog pins. The
current is adjusted by an external resistor and is enabled/disabled by bits located in the control registers. The
conversion is started by setting the start-of-conversion bit (SOC) in the control register and the
end-of-conversions sets the interrupt flag. The analog input signal is sampled starting with SOC during the next
twelve MCLK clock pulses. The power-down bit in the control register controls the operating mode of the ADC
peripheral. The current consumption and operation is stopped when it is set. The system reset PUC sets the
power-down bit.
Basic Timer1
The Basic Timer1 (BT1) divides the frequency of MCLK or ACLK, as selected with the SSEL bit, to provide low
frequency control signals. This is done within the system by one central divider, the Basic Timer1, to support
low current applications. The BTCTL control register contains the flags which control or select the different
operational functions. When the supply voltage is applied or when a reset of the device (RST/NMI pin), a
watchdog overflow or a watchdog security key violation occurs, and all bits in the register hold undefined or
unchanged status. The user software usually configures the operational conditions on the BT1 during
initialization.
The Basic Timer1 has two 8-Bit timers which can be cascaded to a 16-bit timer. Both timers can be read and
written by software. Two bits in the SFR address range handle the system control interaction according to the
function implemented in the Basic Timer1. These two bits are the Basic Timer1 interrupt flag (BTIFG) and the
Basic Timer1 interrupt enable (BTIE) bit.
Watchdog Timer
The primary function of the Watchdog Timer (WDT) module is to perform a controlled system restart after a
software upset has occurred. If the selected time interval expires, a system reset is generated. If this watchdog
function is not needed in an application, the module can work as an interval timer, which generates an interrupt
after the selected time interval.
The Watchdog Timer counter (WDTCNT) is a 15/16-bit up-counter which is not directly accessible by software.
The WDTCNT is controlled using the Watchdog Timer control register (WDTCTL), which is an 8-Bit read/write
register. Writing to WDTCTL, in both operating modes (watchdog or timer) is only possible by using the correct
password in the high-byte. The low-byte stores data written to the WDTCTL. The high-byte password is 05Ah.
If any value other than 05Ah is written to the high-byte of the WDTCTL, a system reset PUC is generated.
When
the password is read its value is 069h. This minimizes accidental write operations to the WDTCTL register. In
addition to the Watchdog Timer control bits, two bits included in the WDTCTL configure the NMI pin.
相關(guān)PDF資料
PDF描述
MSP430P337AIPJM 16-BIT, OTPROM, 3.8 MHz, RISC MICROCONTROLLER, PQFP100
MSW2002-200-T SILICON, PIN DIODE
MT8952BC 1 CHANNEL(S), 2.5M bps, SERIAL COMM CONTROLLER, CDIP28
MT8952BC 1 CHANNEL(S), 2.5M bps, SERIAL COMM CONTROLLER, CDIP28
MT8LLN22NCNE PCI BUS CONTROLLER, PBGA316
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSP430P325IPM 功能描述:16位微控制器 - MCU 16kB OTP 512B RAM 14b ADC/84 seg LCD RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線(xiàn)寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MSP430P325QPG 制造商:Texas Instruments 功能描述:
MSP430P337AIPJM 功能描述:16位微控制器 - MCU 32kB OTP 1KB RAM USART/120 seg LCD RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線(xiàn)寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MSP430P337AIPJM 制造商:Texas Instruments 功能描述:16-Bit Microcontroller Clock Speed:3.8MH
MSP430P337AIPJMPX 制造商:Texas Instruments 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*