參數(shù)資料
型號： AT89C51AC2-RLTUM
廠商： Atmel
文件頁數(shù)： 107/121頁
文件大?。?/td> 0K
描述： IC 8051 MCU FLASH 32K 44VQFP
產(chǎn)品培訓(xùn)模塊： MCU Product Line Introduction
標(biāo)準(zhǔn)包裝： 800
系列： 89C
核心處理器： 8051
芯體尺寸： 8-位
速度： 40MHz
連通性： UART/USART
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 34
程序存儲器容量： 32KB（32K x 8）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量： 1.25K x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-LQFP
包裝： 托盤
產(chǎn)品目錄頁面： 616 (CN2011-ZH PDF)
配用： AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU
86
A/T89C51AC2
4127H–8051–02/08
Analog-to-Digital
Converter (ADC)
This section describes the on-chip 10 bit analog-to-digital converter of the
A/T89C51AC2. Eight ADC channels are available for sampling of the external sources
AN0 to AN7. An analog multiplexer allows the single ADC converter to select one from
the 8 ADC channels as ADC input voltage (ADCIN). ADCIN is converted by the 10-bit
cascaded potentiometric ADC.
Two modes of conversion are available:
- Standard conversion (8 bits).
- Precision conversion (10 bits).
For the precision conversion, set bit PSIDLE in ADCON register and start conversion.
The device is in a pseudo-idle mode, the CPU does not run but the peripherals are
always running. This mode allows digital noise to be as low as possible, to ensure high
precision conversion.
For this mode it is necessary to work with end of conversion interrupt, which is the only
way to wake the device up.
If another interrupt occurs during the precision conversion, it will be served only after
this conversion is completed.
Features
8 channels with multiplexed inputs
10-bit cascaded potentiometric ADC
Conversion time 16 micro-seconds (typ.)
Zero Error (offset) ± 2 LSB max
Positive External Reference Voltage Range (VAREF) 2.4 to 3.0 Volt (typ.)
ADCIN Range 0 to 3Volt
Integral non-linearity typical 1 LSB, max. 2 LSB
Differential non-linearity typical 0.5 LSB, max. 1 LSB
Conversion Complete Flag or Conversion Complete Interrupt
Selectable ADC Clock
ADC Port 1 I/O Functions Port 1 pins are general I/O that are shared with the ADC channels. The channel select
bit in ADCF register define which ADC channel/port1 pin will be used as ADCIN. The
remaining ADC channels/port1 pins can be used as general-purpose I/O or as the alter-
nate function that is available.
A conversion launched on a channel which are not selected on ADCF register will not
have any effect.
VAREF
VAREF should be connected to a low impedance point and must remain in the range
specified in Table 77. If the ADC is not used, it is recommended to connect VAREF to
VAGND.
相關(guān)PDF資料
PDF描述
VI-B24-IY-F3 CONVERTER MOD DC/DC 48V 50W
VI-B24-IY-F2 CONVERTER MOD DC/DC 48V 50W
VI-J1Y-IX-F4 CONVERTER MOD DC/DC 3.3V 49.5W
VJ2225A561KBAAT4X CAP CER 560PF 50V 10% NP0 2225
VI-B2N-IY-F1 CONVERTER MOD DC/DC 18.5V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT89C51AC2SLSUM 制造商:Adesto Technologies Corporation 功能描述:
AT89C51AC2-SLSUM 功能描述:8位微控制器 -MCU C51AC2 32K FLASHADC EEP 5V 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
AT89C51AC3 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit Microcontroller with 64KB Flash Memory
AT89C51AC3_04 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontrollers
AT89C51AC3_05 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit Microcontroller with 64KB Flash Memory
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*