参数资料
型号: ATTINY15L-1SI
厂商: Atmel
文件页数: 36/85页
文件大小: 0K
描述: IC AVR MCU 1K FLASH 2.7V SO8
标准包装: 95
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 1.6MHz
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 6
程序存储器容量: 1KB(512 x 16)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.209",5.30mm 宽)
包装: 管件
41
ATtiny15L
1187H–AVR–09/07
The Analog-to-Digital
Converter, Analog
Multiplexer, and Gain
Stages
Features
10-bit Resolution
±2 LSB Absolute Accuracy
0.5 LSB Integral Non-linearity
Optional Offset Cancellation
65 - 260 s Conversion Time
Up to 15 kSPS
4 Multiplexed Single-ended Input Channels
1 Differential Input Channel with Optional Gain of 20x
2.56V Internal Voltage Reference
0 - 2.56V Differential Input Voltage Range
0 - V
CC Single-ended Input Voltage Range
Optional Left Adjustment for ADC Result Readout
Free Running or Single Conversion Mode
Interrupt on ADC Conversion Complete
Sleep Mode Noise Canceler
The ATtiny15L features a 10-bit successive approximation ADC. The ADC is connected
to a 4-channel Analog Multiplexer that allows one differential voltage input and four sin-
gle-ended voltage inputs constructed from the pins of Port B. The differential input (PB3,
PB4) is equipped with a programmable gain stage, providing amplification step of 26 dB
(20x) on the differential input voltage before the A/D conversion. The single-ended volt-
age inputs at PB2..PB5 refer to 0V (GND).
The ADC contains a Sample and Hold Amplifier that ensures that the input voltage to
the ADC is held at a constant level during conversion. A block diagram of the ADC is
shown in Figure 25.
An internal reference voltage of nominally 2.56V is provided On-chip and this reference
can optionally be externally decoupled at the AREF (PB0) pin by a capacitor for better
noise performance. Alternatively, V
CC can be used as reference voltage for single-
ended channels. There is also an option to use an external voltage reference and turn
off the internal voltage reference. These options are selected using the REFS1..0 bits of
the ADMUX Control Register.
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