- 您现在的位置：买卖IC网 > PDF目录79604 > IQ80C32-25 (TEMIC SEMICONDUCTORS) 8-BIT, 25 MHz, MICROCONTROLLER, CQFP44 PDF资料下载
参数资料
| 型号： | IQ80C32-25 |
| 厂商： | TEMIC SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 25 MHz, MICROCONTROLLER, CQFP44 |
| 文件页数： | 88/109页 |
| 文件大小： | 10824K |
| 代理商： | IQ80C32-25 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页当前第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页
65
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
value close to BOTTOM when the counter is running with none or a low prescaler value must be done with care since the
CTC mode does not have the double buffering feature. If the new value written to OCR0A is lower than the current value
of TCNT0, the counter will miss the Compare Match. The counter will then have to count to its maximum value (0xFF)
and wrap around starting at 0x00 before the Compare Match can occur.
For generating a waveform output in CTC mode, the OC0A output can be set to toggle its logical level on each Compare
Match by setting the Compare Output mode bits to toggle mode (COM0A[1:0] = 1). The OC0A value will not be visible on
the port pin unless the data direction for the pin is set to output. When OCR0A is set to zero (0x00) the waveform
generated will have a maximum frequency of fclk_I/O/2. The waveform frequency is defined by the following equation:
The N variable represents the prescale factor (1, 8, 64, 256, or 1024).
As for the Normal mode of operation, the TOV0 Flag is set in the same timer clock cycle that the counter counts from
MAX to 0x00.
11.7.3 Fast PWM Mode
The fast Pulse Width Modulation or fast PWM mode (WGM0[2:0] = 3 or 7) provides a high frequency PWM waveform
generation option. The fast PWM differs from the other PWM option by its single-slope operation. The counter counts
from BOTTOM to TOP then restarts from BOTTOM. TOP is defined as 0xFF when WGM0[2:0] = 3, and OCR0A when
WGM0[2:0] = 7. In non-inverting Compare Output mode, the Output Compare (OC0x) is cleared on the Compare Match
between TCNT0 and OCR0x, and set at BOTTOM. In inverting Compare Output mode, the output is set on Compare
Match and cleared at BOTTOM. Due to the single-slope operation, the operating frequency of the fast PWM mode can
be twice as high as the phase correct PWM mode that use dual-slope operation. This high frequency makes the fast
PWM mode well suited for power regulation, rectification, and DAC applications. High frequency allows physically small
sized external components (coils, capacitors), and therefore reduces total system cost.
In fast PWM mode, the counter is incremented until the counter value matches the TOP value. The counter is then
cleared at the following timer clock cycle. The timing diagram for the fast PWM mode is shown in Figure 11-6 on page 66.
The TCNT0 value is in the timing diagram shown as a histogram for illustrating the single-slope operation. The diagram
includes non-inverted and inverted PWM outputs. The small horizontal line marks on the TCNT0 slopes represent
Compare Matches between OCR0x and TCNT0.
f
OCnx
f
clk_I/O
2 N
1
OCRnA
+
---------------------------------------------------
=
相关PDF资料 |
PDF描述 |
|---|---|
| IT80C32-12SHXXX:R | 8-BIT, 12 MHz, MICROCONTROLLER, PQFP44 |
| IT80C32E-20SHXXX:D | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
| IV80C32-12SHXXX:D | 8-BIT, 12 MHz, MICROCONTROLLER, PQFP44 |
| IV80C32-36:RD | 8-BIT, 36 MHz, MICROCONTROLLER, PQFP44 |
| IV80C32E-20SHXXX:RD | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IQ80T B | 制造商:Omnimount 功能描述:Tilt Mount for Flat Panel Televisions 23"~42" 80lb. Capacity 制造商:OMNIMOUNT 功能描述:DWO FLAT PANEL MOUNT TILT FOR 23 IN - 42 IN FLAT PANELS |
| IQ81349SC 888389 | 制造商:Intel 功能描述:IQ81349SC - Bulk |
| IQ82C55A | 功能描述:IC I/O EXPANDER 24B 44MQFP RoHS:否 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
| IQ82C55A96 | 功能描述:IC I/O EXPANDER 24B 44MQFP RoHS:否 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
| IQ82C55AZ | 功能描述:外围驱动器与原件 - PCI PERI PRG-I/O 5V 8MHZ INDUSTRIAL TEMP RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。