參數(shù)資料
型號(hào)： MC68HC705SR3CP
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP40
封裝： PLASTIC, DIP-40
文件頁數(shù)： 47/96頁
文件大小： 3045K
代理商： MC68HC705SR3CP
MC68HC05SR3
Freescale
7-1
ANALOG TO DIGITAL CONVERTER
7
ANALOG TO DIGITAL CONVERTER
The analog to digital converter system consists of a single 8-bit successive approximation
converter and an 8-channel analog multiplexer. Four of the channels are available for analog
inputs, and the other four channels are dedicated to internal test functions. There is one 8-bit ADC
Data Register ($0F) and one 8-bit ADC Status and Control register ($0E). The reference supply,
VRL and VRH for the converter uses two input pins (shared with PD4 and PD5) instead of the power
supply lines, because drops caused by loading in the power supply lines would degrade the
accuracy of the analog to digital conversion. An internal RC oscillator is available if the bus speed
is low enough to degrade the ADC accuracy. An ADON bit allows the ADC to be switched off to
reduce power consumption, which is particularly useful in the Wait mode.
Figure 7-1 ADC Converter Block Diagram
CH2
CH1
CH0
COCO
ADRC
ADON
8-bit capacitive DAC
with sample and hold
Successive approximation
register and control
Result
ADC Status and Control Register ($0E)
Analog
MUX
(Chan
nel
as
sig
nment)
ADC Data Register ($0F)
VRH
VRL
AN0
VRH
(VRH+VRL)/2
VRL
AN1
AN2
AN3
(VRH+VRL)/4
8
TPG
49
05SR3.Book Page 1 Thursday, August 4, 2005 1:08 PM
相關(guān)PDF資料
PDF描述
MC68HC705SR3CFB 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP44
MC68HC705SR3CB 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP42
MC68HC05SR3CB 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP42
MC68HC05SR3CP 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP40
MC68HC705SR3B 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP42
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705SR3CPE 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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
MC68HC705SR3CPE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MC68HC705SR3PE 功能描述:IC MCU 3.75K 2.1MHZ OTP 40-DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，SPI，UART/USART 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（16K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT
MC68HC706P6ACDW 制造商:Motorola Inc 功能描述:
MC68HC708MP16CFU 制造商:MAJOR 功能描述:
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