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參數(shù)資料
型號(hào)： MC68HC916X1
廠商： Motorola, Inc.
英文描述： 16-Bit Modular Microcontroller(16位模塊化微控制器)
中文描述： 16位微控制器模塊（16位模塊化微控制器）
文件頁數(shù)： 78/172頁
文件大小： 1035K
代理商： MC68HC916X1
MOTOROLA
78
MC68HC916X1
MC68HC916X1TS/D
5 Analog-to-Digital Converter Module
The analog-to-digital converter module (ADC) is a unipolar, successive-approximation converter
with eight modes of operation. It has selectable 8- or 10-bit resolution. Monotonicity is guaranteed
in both modes.
ADC module conversion functions can be grouped into three basic subsystems: an analog front
end, a digital control section, and result storage. In addition, the six analog inputs can be used as
a general-purpose digital input (port ADA), provided signals are within logic level specification.
Figure 13
shows a block diagram of the ADC converter module.
5.1 Analog Subsystem
The analog front end consists of a multiplexer, a buffer amplifier, a resistor-capacitor array, and a
high-gain comparator. The multiplexer selects one of six internal or six external signal sources for
conversion. The buffer amplifier protects the input channel from the relatively large capacitance of
the resistor capacitor (RC) array. The RC array performs two functions: it acts as a sample/hold cir-
cuit, and it provides the digital-to-analog comparison output necessary for successive approxima-
tion conversion. The comparator indicates whether each successive output of the RC array is
higher or lower than the sampled input.
5.2 Digital Control Subsystem
The digital control section includes conversion sequence control logic, channel and reference select
logic, a successive approximation register, eight result registers, a port data register, and control/
status registers. It controls the multiplexer and the output of the RC array during the sample and
conversion periods, stores the results of comparison in the successive-approximation register, and
transfers the result to a result register.
5.3 Bus Interface Subsystem
The ADC bus interface unit contains logic necessary to interface the ADC to the intermodule bus.
The ADC is designed to act as a slave device on the bus. The interface must respond with appro-
priate bus cycle termination signals and supply appropriate interface timing to the other submod-
ules.
相關(guān)PDF資料
PDF描述
MC68HC9D60 Advance Information - Rev 4.0
MC68HC12D60 Advance Information - Rev 4.0
MC68HCL05C8A 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HSC05C8A 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HCP11 8-Bit Microcontrollers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC98LJ12CFU 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
MC68HC98LJ12CFUE 功能描述:8位微控制器 -MCU 8 BIT MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68HC9S08RC60 L33R DIE 制造商:Motorola Inc 功能描述:
MC68HCP11A1CFN3 功能描述:8位微控制器 -MCU 8-bit HCMOS single chip MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68HCP11A1FN 制造商:MOTORALA 功能描述:
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