參數(shù)資料
型號(hào)： LM12454CIV
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 模擬信號(hào)調(diào)理
英文描述： 12-Bit Sign Data Acquisition System with Self-Calibration
中文描述： SPECIALTY ANALOG CIRCUIT, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 5/103頁
文件大小： 1355K
代理商： LM12454CIV
grifo
ITALIAN TECHNOLOGY
Pagina II
GPC
150 Rel. 3.00
JUMPERS .............................................................................................................................. 32
JUMPERS A 2 VIE........................................................................................................... 34
JUMPERS A 3 VIE........................................................................................................... 35
JUMPER A 4 VIE ............................................................................................................. 35
JUMPER A 5 VIE ............................................................................................................. 35
RESET E WATCH DOG....................................................................................................... 36
BACK UP ............................................................................................................................... 36
POWER FAILURE ............................................................................................................... 37
INTERRUPTS ....................................................................................................................... 37
COMUNICAZIONE SERIALE........................................................................................... 38
INGRESSI DI CONFIGURAZIONE .................................................................................. 40
SELEZIONE MEMORIE..................................................................................................... 41
DESCRIZIONE SOFTWARE................................................................................................... 42
MAPPAGGI ED INDIRIZZAMENTI...................................................................................... 46
MAPPAGGIO DELLE RISORSE DI BORDO.................................................................. 46
MAPPAGGIO I/O ................................................................................................................. 47
MAPPAGGIO ABACO
BUS .............................................................................................. 49
MAPPAGGIO MEMORIE................................................................................................... 49
DESCRIZIONE SOFTWARE DELLE PERIFERICHE DI BORDO .................................. 52
MEMORY MANAGEMENT UNIT .................................................................................... 52
A/D CONVERTER ................................................................................................................ 53
WATCH DOG ESTERNO .................................................................................................... 54
EEPROM SERIALE ............................................................................................................. 54
STATO DELLA BATTERIA ................................................................................................ 54
INGRESSI DI CONFIGURAZIONE .................................................................................. 55
LED DI ATTIVITA' .............................................................................................................. 55
FLASH EPROM SERIALE ................................................................................................. 56
BAUD RATE GENERATOR................................................................................................ 56
REAL TIME CLOCK ........................................................................................................... 57
PPI 82C55............................................................................................................................... 59
PERIFERICHE INTERNE DELLA CPU .......................................................................... 59
SCHEDE ESTERNE .................................................................................................................. 60
BIBLIOGRAFIA ........................................................................................................................ 64
APPENDICE A: SCHEMI ELETTRICI ...............................................................................A-1
APPENDICE B: DESCRIZIONE COMPONENTI DI BORDO......................................... B-1
CPU 80C188 ........................................................................................................................... B-1
A/D CONVERTER LM12H458.......................................................................................... B-15
APPENDICE C: INDICE ANALITICO ................................................................................C-1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM12458 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit Sign Data Acquisition System with Self-Calibration
LM12458A WAF 制造商:Texas Instruments 功能描述:
LM12458CIV 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
LM12458CIV/NOPB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B PLUS SIGN DATA ACQUISITION SYSTEM RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
LM12458CIV/NOPB 制造商:Texas Instruments 功能描述:A/D Converter (A-D) IC
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