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| 型號： | MAXQ3120-FFN+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 15/33頁 |
| 文件大小： | 0K |
| 描述： | IC MCU 32KB FLASH 80-MQFP |
| 標(biāo)準(zhǔn)包裝： | 66 |
| 系列： | MAXQ® |
| 核心處理器： | RISC |
| 芯體尺寸： | 16-位 |
| 速度： | 8MHz |
| 連通性： | UART/USART |
| 外圍設(shè)備： | LCD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲器容量： | 32KB（16K x 16） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.8 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 2x16b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 80-BQFP |
| 包裝： | 托盤 |
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MAXQ3120
Power consumption reaches its minimum in stop mode.
In this mode, the external high-frequency oscillator,
system clock, and all code execution is halted. Stop
mode is exited when an enabled external interrupt pin
is triggered, an external reset signal is applied to the
RESET pin, or the RTC time-of-day alarm is activated.
The 32kHz clock continues running during stop mode,
enabling the following peripherals to keep running dur-
ing stop mode.
mode.
The LCD controller continues running during stop
mode if it is running from the 32kHz clock (LCCS = 0).
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-ser-
vice routine (ISR) design. For maximum flexibility, inter-
rupts can be enabled globally, individually, or by
module. When an interrupt condition occurs, its individ-
ual 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 instruction to allow time for the inter-
rupt 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 determine if
a system register or peripheral register was the source
of the interrupt. The specified module can then be inter-
rogated 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 Interrupts 0 to 2
RTC Time-of-Day and Subsecond Alarms
Serial Port 0 Receive and Transmit Interrupts
Serial Port 1 Receive and Transmit Interrupts
Timer 0 Overflow Interrupt
Timer 1 Overflow and External Trigger Interrupts
Timer 2 Low Compare, Low Overflow, Capture/
Compare, and Overflow Interrupts
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 32kHz oscilla-
tor continue to oscillate. Internal resets such as the
power-on and watchdog resets assert the RESET pin low.
Power-On 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 DVDD
climbs above the VRST level. At this point, the following
events occur:
All registers and circuits enter their reset state
(except for the RTC, if it is battery-backed)
The POR flag (WDCN.7) is set to indicate the source
of the reset
Code execution begins at location 8000h
Watchdog Timer Reset
The watchdog timer functions are described in the
MAXQ Family User’s Guide. Execution resumes at loca-
tion 8000h following a watchdog timer reset.
External System Reset
Asserting the external RESET pin low causes the
device to enter the reset state. The external reset func-
tions as described in the MAXQ Family User’s Guide.
Execution resumes at location 8000h after the RESET
pin is released.
I/O Ports
The microcontroller uses the Type C and Type D bidi-
rectional I/O ports described in the MAXQ Family
User’s Guide. The use of two port types allows for maxi-
mum flexibility when interfacing to external peripherals.
Each port has eight independent, general-purpose I/O
pins and three configure/control registers. Many pins
support alternate functions such as timers or interrupts,
which are enabled, controlled, and monitored by dedi-
cated peripheral registers. Using the alternate function
automatically converts the pin to that function.
High-Precision ADC
Mixed-Signal Microcontroller
22
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAXQ3120-FFN+ | 功能描述:IC MCU 32KB FLASH 80-MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MAXQ® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C，智能卡，UART/USART，USB 外圍設(shè)備:LED，POR，WDT 輸入/輸出數(shù):9 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件 |
| MAXQ3120-KIT | 制造商:Maxim Integrated Products 功能描述:MAXQ3120 EVALUATION KIT - Bulk |
| MAXQ314 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single-Phase Power-Measurement IC with I2C Interface |
| MAXQ314+ | 功能描述:16位微控制器 - MCU Integrated Circuits (ICs) PMIC - Energy Metering - IC PWR MEASUREMENT 1PH 10-TQFN RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小: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 |
| MAXQ314-KIT | 功能描述:開發(fā)板和工具包 - 其他處理器 MAXQ314 Eval Kit RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
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