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参数资料
| 型号： | MAXQ3210-EJX+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/28页 |
| 文件大小： | 0K |
| 描述： | IC MCU 16BIT LP 24-TSSOP |
| 标准包装： | 1 |
| 系列： | MAXQ® |
| 核心处理器： | RISC |
| 芯体尺寸： | 16-位 |
| 速度： | 3.6MHz |
| 外围设备： | LED，电源故障复位，POR，PWM，WDT |
| 输入/输出数： | 15 |
| 程序存储器容量： | 2KB（1K x 16） |
| 程序存储器类型： | EEPROM |
| EEPROM 大小： | 128 x 8 |
| RAM 容量： | 64 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 4.5 V ~ 5.5 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 管件 |
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MAXQ3210
Power Management
Advanced power-management features minimize
power consumption by dynamically matching the pro-
cessing speed of the device to the required perfor-
mance level. This means device operation can be
slowed and power consumption minimized during peri-
ods of reduced activity. When more processing power
is required, the microcontroller can increase its operat-
ing frequency. Software-selectable clock-divide opera-
tions allow flexibility, selecting whether a system clock
cycle (SYSCLK) is 1, 2, 4, or 8 oscillator cycles. By per-
forming this function in software, a lower power state
can be entered without the cost of additional hardware.
For extremely power-sensitive applications, additional
low-power modes are available:
Divide-by-256 power-management mode (PMM)
(PMME = 1, CD1:0 = 00b)
Stop mode (STOP = 1)
In PMM, one system clock is 256 oscillator cycles, sig-
nificantly reducing power consumption while the micro-
controller functions at reduced speed. The optional
switchback feature allows enabled interrupt sources
including external interrupts to quickly exit the power-
management modes and return to a faster internal
clock rate.
Power consumption reaches its minimum in stop mode.
In this mode the external oscillator, system clock, and
all processing activity is halted. Stop mode is exited
when an enabled external interrupt pin is triggered, the
enabled wake-up timer expires, or an external reset
signal is applied to the RESET pin. Upon exiting stop
mode, the microcontroller starts execution immediately
from its internal 8kHz (approximately) ring oscillator
while the warmup period completes.
Interrupts
Multiple reset sources are available for quick response to
internal and external events. The MAXQ architecture uses
a single interrupt vector (IV), single interrupt-service rou-
tine (ISR) design. For maximum flexibility, interrupts can
be enabled globally, individually, or by module. When an
interrupt condition occurs, its individual flag is set, even if
the interrupt source is disabled at the local, module, or
global level. Interrupt flags must be cleared within the
user-interrupt routine to avoid repeated interrupts from
the same source. Application software must ensure a
delay between the write to the flag and the RETI instruc-
tion to allow time for the interrupt hardware to remove the
internal interrupt condition. Asynchronous interrupt flags
require a one-instruction delay and synchronous interrupt
flags require a two-instruction delay.
When an enabled interrupt is detected, software jumps
to a user-programmable interrupt vector location. The
IV register defaults to 0000h on reset or power-up, so if
it is not changed to a different address, the user pro-
gram must determine whether a jump to 0000h came
from a reset or interrupt source.
Once software control has been transferred to the ISR,
the interrupt identification register (IIR) can be used to
determine if a system register or peripheral register
was the source of the interrupt. The specified module
can then be interrogated for the specific interrupt
source and software can take appropriate action.
Because the interrupts are evaluated by user software,
the user can define a unique interrupt priority scheme
for each application. The following interrupt sources are
available:
Watchdog Interrupt
External Interrupt 0
Timer 2 Low Compare, Low Overflow, Capture/
Compare, and Overflow Interrupts
Analog Comparator Interrupt
Low-Battery Interrupt
Wake-Up Interrupt
Reset Sources
Several reset sources are provided for microcontroller
control. Although code execution is halted in the reset
state, the high-frequency oscillator and the ring oscilla-
tor continue to oscillate.
Power-On Reset/Brownout Reset
An internal power-on reset circuit enhances system reli-
ability. This circuit forces the device to perform a
power-on reset whenever a rising voltage on VDD
climbs above approximately VRST. Additionally, the
device performs a brownout reset whenever VDD drops
below VRST, a feature that can be optionally disabled in
stop mode. The following events occur during a power-
on reset.
All registers and circuits enter their power-on reset
state
I/O pins revert to their reset state, with logic-1 states
tracking VREGOUT
The power-on reset flag is set to indicate the source
of the reset
The ring oscillator becomes the clock source
The external high-speed oscillator begins its
warmup
Code execution begins at location 8000h
Microcontroller with Internal Voltage Regulator,
Piezoelectric Horn Driver, and Comparator
18
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAXQ3210-EJX+ | 功能描述:16位微控制器 - MCU Integrated Circuits (ICs) 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 |
| MAXQ3210-EMX | 功能描述:16位微控制器 - 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 |
| MAXQ3210-EMX+ | 功能描述:16位微控制器 - MCU Integrated Circuits (ICs) 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 |
| MAXQ3210-KIT | 功能描述:开发板和工具包 - 其他处理器 Programmers, Development Systems RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压: |
| MAXQ3212 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Microcontroller with Analog Comparator and LED Driver |
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