參數(shù)資料
型號(hào)： STR912FW42X6T
廠商： 意法半導(dǎo)體
元件分類： ADC
英文描述： ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA
中文描述： ARM966E - ? 16/32位閃存微控制器與以太網(wǎng)，USB，加拿大，交流電機(jī)控制，4個(gè)計(jì)時(shí)器，模數(shù)轉(zhuǎn)換器，RTC和DMA的
文件頁數(shù)： 22/72頁
文件大?。?/td> 664K
代理商： STR912FW42X6T
STR91xF
Functional overview
29/72
2.24
A/D converter (ADC)
The STR91xF provides an eight-channel, 10-bit successive approximation analog-to-digital
converter. The ADC input pins are multiplexed with other functions on Port 4 as shown in
Table 2. Following are the major ADC features:
●
Fast conversion time, as low as 2 usec
●
Accuracy. Integral and differential non-linearity are both +/- 2 LSB (4 conversion counts).
●
0 to 3.6V input range. External reference voltage input pin (AVREF) available on 128-pin
packages for better accuracy on low-voltage inputs. The voltage on AVREF can range
from 1.0V to VDDQ.
●
CPU Firmware may convert one ADC input channel at a time, or it has the option to set the
ADC to automatically scan and convert all eight ADC input channels sequentially before
signalling an end-of-conversion
●
Automatic continuous conversion mode is available for any number of designated ADC
input channels
●
Analog watchdog mode provides automatic monitoring of any ADC input, comparing it
against two programmable voltage threshold values. The ADC unit will set a flag or it will
interrupt the CPU if the input voltage rises above the higher threshold, or drops below the
lower threshold.
●
The ADC unit goes to stand-by mode (very low-current consumption) after any reset event.
CPU firmware may also command the ADC unit to stand-by mode at any time.
2.25
Standard timers (TIM) with DMA
The STR91xF has four independent, free-running 16-bit timer/counter modules designated
TIM0, TIM1, TIM2, and TIM3. Each general purpose timer/counter can be configured by
firmware for a variety of tasks including; pulse width and frequency measurement (input
capture), generation of waveforms (output compare and PWM), event counting, delay timing,
and up/down counting.
Each of the four timer units have the following features:
●
16-bit free running timer/counter
●
Internal timer/counter clock source from a programmable 8-bit prescale of the CCU PCLK
clock output
●
Optional external timer/counter clock source from pin P2.4 shared by TIM0/TIM1, and pin
P2.5 shared by TIM2/TIM3. Frequency of these external clocks must be at least 4 times
less the frequency of the internal CCU PCLK clock output
●
Two dedicated 16-bit Input Capture registers for measuring up to two input signals. Input
Capture has programmable selection of input signal edge detection
●
Two dedicated 16-bit Output Compare registers for generation up to two output signals
●
PWM output generation with 16-bit resolution of both pulse width and frequency
●
One pulse generation in response to an external event
●
A dedicated interrupt to the CPU with five interrupt flags
2.25.1 DMA
A programmable DMA channel may be assigned by CPU firmware to service each timer/
counter module TIM0 and TIM1 for fast and direct transfers.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STR912FW44X6 功能描述:ARM微控制器 - MCU TQFP 128 14x14x1.4 1 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
STR912FW44X6 制造商:STMicroelectronics 功能描述:512K Flash 96K sram Ethernet USB CAN
STR912FW44X6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR912FW92X6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR912FW94X6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
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