参数资料
型号: PIC16C64A-10/PT
厂商: Microchip Technology
文件页数: 88/126页
文件大小: 0K
描述: IC MCU OTP 2KX14 PWM 44TQFP
产品培训模块: Asynchronous Stimulus
标准包装: 160
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 10MHz
连通性: I²C,SPI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 33
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: OTP
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 6 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 44-TQFP
包装: 托盘
64
AT90S/LS4433
1042H–AVR–04/03
Analog-to-Digital
Converter
Features
10-bit Resolution
±2 LSB Absolute Accuracy
0.5 LSB Integral Non-linearity
65 - 260 s Conversion Time
Up to 15 kSPS
Six Multiplexed Input Channels
Rail-to-Rail Input Range
Free Run or Single Conversion Mode
Interrupt on ADC Conversion Complete
Sleep Mode Noise Canceler
The AT90S4433 features a 10-bit successive approximation ADC. The ADC is con-
nected to a 6-channel Analog Multiplexer, which allows each pin of Port C to be used as
an input for the ADC. The ADC contains a Sample and Hold Amplifier, which 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 44.
The ADC has two separate analog supply voltage pins: AVCC and AGND. AGND must
be connected to GND, and the voltage on AVCC must not differ from V
CC more than
±0.3V. See the section “ADC Noise Canceling Techniques” on page 70 for how to con-
nect these pins.
An external reference voltage must be applied to the AREF pin. This voltage must be in
the range 2.0 - AVCC.
Figure 44. Analog-to-Digital Converter Block Schematic
ADC CONVERSION
COMPLETE IRQ
8-BIT DATA BUS
90
ADC MULTIPLEXER
SELECT (ADMUX)
ADC CTRL & STATUS
REGISTER (ADCSR)
ADC DATA REGISTER
(ADCH/ADCL)
MUX2
ADIE
ADFR
ADSC
ADEN
ADIF
MUX1
MUX0
ADPS0
ADPS1
ADPS2
6-
CHANNEL
MUX
CONVERSION LOGIC
10-BIT DAC
+
-
SAMPLE & HOLD
COMPARATOR
Analog
Inputs
External
Reference
Voltage
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