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6.0 Application Circuits (Continued)
Parts List:
Y1
HC49U, 8 MHz crystal
D1
1N4002
L1
33 H
P1
DB37F; parallel connector
R1
10 M
,5%, 14W
R2
2 k
,5%, 14W
RN1
10 k
, 6 resistor SIP, 5%, 18W
JP1, JP2 HX3, 3-pin jumper
S1
SW DIP-8; 8 SPST switches
C1–3, C6, C9–11,
C19, C22
0.1 F, 50V, monolithic ceramic
C4
68 pF, 50V, ceramic disk
C5
15 pF, 50V, ceramic disk
C7, C21
100 F, 25V, electrolytic
C8, C12, C20 10 F, 35V, electrolytic
C13, C16
0.01 F, 50V, monolithic ceramic
C14, C18
1 F, 35V, tantalum
C15, C17
100 F, 50V, ceramic disk
U1
MM74HCT244N
U2
GAL16V8-20LNC
U3
MM74HCT245N
U4
MM74HCU04N
U5
LM12(H)458CIV or LM12454CIV
U6
LM340AT-5.0
SK1
44-pin PLCC socket
A1
LM12(H)458/4 Rev. D PC Board
FIGURE 17. Parts List for the LM12(H)454/8 Evaluation Interface
Board for XT and AT Style Computers, Order Number LM12458EVAL
www.national.com
35
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相关代理商/技术参数
LM12L438CIV 制造商:NSC 制造商全称:National Semiconductor 功能描述:Sign Data Acquisition System with Serial I/O and Self-Calibration
LM12L438CIWM 制造商:NSC 制造商全称:National Semiconductor 功能描述:Sign Data Acquisition System with Serial I/O and Self-Calibration
LM12L454CIV 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
LM12L458 制造商:NSC 制造商全称:National Semiconductor 功能描述:12-Bit + Sign Data Acquisition System with Self-Calibration
LM12L458_06 制造商:NSC 制造商全称:National Semiconductor 功能描述:12-Bit + Sign Data Acquisition System with Self-Calibration
LM12L458CIV 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
LM12L458CIV/NOPB 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
LM12L458CIVF 制造商:Rochester Electronics LLC 功能描述:12-BIT PARALLEL I/O DAS - Bulk