参数资料
型号: ATTINY26L-8PU
厂商: Atmel
文件页数: 167/169页
文件大小: 0K
描述: IC MCU AVR 2K 5V 8MHZ 20-DIP
产品培训模块: MCU Product Line Introduction
tinyAVR Introduction
标准包装: 18
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 8MHz
连通性: USI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 16
程序存储器容量: 2KB(1K x 16)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 11x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-DIP(0.300",7.62mm)
包装: 管件
产品目录页面: 612 (CN2011-ZH PDF)
配用: ATSTK600-RC08-ND - STK600 ROUTING CARD AVR
ATSTK600-ND - DEV KIT FOR AVR/AVR32
ATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM
ATSTK505-ND - ADAPTER KIT FOR 14PIN AVR MCU
其它名称: ATTINY26L-8PJ
ATTINY26L-8PJ-ND
97
1477K–AVR–08/10
ATtiny26(L)
The ADC module contains a prescaler, which divides the system clock to an acceptable ADC
clock frequency.
The ADPS bits in ADCSR are used to generate a proper ADC clock input frequency from any
chip clock frequency above 100 kHz. The prescaler starts counting from the moment the ADC is
switched on by setting the ADEN bit in ADCSR. The prescaler keeps running for as long as the
ADEN bit is set, and is continuously reset when ADEN is low.
When initiating a conversion by setting the ADSC bit in ADCSR, the conversion starts at the fol-
lowing rising edge of the ADC clock cycle. If differential channels are selected, the conversion
will only start at every other rising edge of the ADC clock cycle after ADEN was set.
A normal conversion takes 13 ADC clock cycles. In certain situations, the ADC needs more
clock cycles to initialization and minimize offset errors. Extended conversions take 25 ADC clock
cycles and occur as the first conversion after the ADC is switched on (ADEN in ADCSR is set).
Special care should be taken when changing differential channels. Once a differential channel
has been selected, the gain stage may take as much as 125 s to stabilize to the new value.
Thus conversions should not be started within the first 125 s after selecting a new differential
channel. Alternatively, conversions results obtained within this period should be discarded. The
same settling time should be observed for the first differential conversion after changing ADC
reference (by changing the REFS1:0 bits in ADMUX).
The actual sample-and-hold takes place 1.5 ADC clock cycles after the start of a normal conver-
sion and 13.5 ADC clock cycles after the start of an extended conversion. When a conversion is
complete, the result is written to the ADC Data Registers, and ADIF is set. In Single Conversion
mode, ADSC is cleared simultaneously. The software may then set ADSC again, and a new
conversion will be initiated on the first rising ADC clock edge. In Free Running mode, a new con-
version will be started immediately after the conversion completes, while ADSC remains high.
Using Free Running mode and an ADC clock frequency of 200 kHz gives the lowest conversion
time, 65 s, equivalent to 15 kSPS. For a summary of conversion times, see Table 43.
Figure 53. ADC Timing Diagram, Extended Conversion (Single Conversion Mode)
MSB of Result
LSB of Result
ADC Clock
ADSC
Sample & Hold
ADIF
ADCH
ADCL
Cycle Number
ADEN
1
212
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
Extended Conversion
Next
Conversion
3
MUX and REFS
Update
MUX and REFS
Update
Conversion
Complete
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ATTINY26L-8SI 功能描述:8位微控制器 -MCU AVR 2K FLSH 128B EE 128B SRAM ADC 3V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ATTINY26L-8SI SL383 制造商:Atmel Corporation 功能描述:MCU 8-bit ATtiny AVR RISC 2KB Flash 3.3V/5V 20-Pin SOIC W T/R
ATtiny26L-8SU 功能描述:8位微控制器 -MCU 2kB Flash 128B EE 128B SRAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ATTINY26L-8SUR 功能描述:8位微控制器 -MCU 2K FL 128B EE 128B SRAM ADC 8MHZ IND 3V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT