參數資料
型號： LM12454CIV
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 模擬信號調理
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： 4/103頁
文件大?。?/td> 1355K
代理商： LM12454CIV
ITALIAN TECHNOLOGY
grifo
INDICE GENERALE
Pagina I
GPC
150 Rel. 3.00
INTRODUZIONE ........................................................................................................................ 1
VERSIONE SCHEDA.................................................................................................................. 1
INFORMAZIONI GENERALI .................................................................................................. 2
SIO ............................................................................................................................................ 3
TIMER COUNTER................................................................................................................. 3
LINEE DI I/O DEL PIO ......................................................................................................... 3
REAL TIME CLOCK ............................................................................................................. 3
PROCESSORE DI BORDO................................................................................................... 4
COMUNICAZIONE SERIALE............................................................................................. 4
ABACO
BUS .......................................................................................................................... 4
DISPOSITIVI DI CLOCK ..................................................................................................... 6
A/D CONVERTER .................................................................................................................. 6
LINEE DI I/O DEL PPI 82C55 .............................................................................................. 6
WATCH DOG .......................................................................................................................... 6
LOGICA DI CONTROLLO................................................................................................... 7
DISPOSITIVI DI MEMORIA ............................................................................................... 7
MMU......................................................................................................................................... 7
CARATTERISTICHE TECNICHE ........................................................................................... 8
CARATTERISTICHE GENERALI ...................................................................................... 8
CARATTERISTICHE TECNICHE ...................................................................................... 8
CARATTERISTICHE ELETTRICHE................................................................................. 9
INSTALLAZIONE ..................................................................................................................... 10
CONNESSIONI CON IL MONDO ESTERNO ................................................................. 10
CN1 - CONNETTORE PER BATTERIA ESTERNA DI BACK UP .......................... 10
CN4 - CONNETTORE PER PORT B DEL PPI 82C55................................................ 11
CN3 - CONNETTORE PER PORT A E C PPI 82C55 ................................................. 12
CN5 - CONNETTORE PER INGRESSI A/D CONVERTER ..................................... 14
CN7 - CONNETTORE PER LINEE SERIALI RS 232 E TIMER COUNTER......... 16
CN6 - CONNETTORE PER I/O DEL PIO.................................................................... 18
CN2 - CONNETTORE PER SERIALE IN RS 422, RS 485 E CURRENT LOOP.... 20
K1 - CONNETTORE PER ABACO
BUS..................................................................... 26
TRIMMER E TARATURE................................................................................................... 28
TEST POINT ......................................................................................................................... 28
INTERFACCIAMENTO DEGLI I/O CON IL CAMPO................................................... 29
SELEZIONE TIPO INGRESSI ANALOGICI................................................................... 29
SEGNALAZIONI VISIVE ................................................................................................... 30
INTERFACCE PER I/O DIGITALI.................................................................................... 30
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相關代理商/技術參數
參數描述
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:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
LM12458CIV/NOPB 功能描述:模數轉換器 - ADC 12B PLUS SIGN DATA ACQUISITION SYSTEM RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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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