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參數(shù)資料
| 型號(hào)： | SN74LS42N |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 通用總線功能 |
| 英文描述： | 500mA, 15V,±2% Tolerance, Voltage Regulator, Ta = 0°C to +125°C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50 |
| 中文描述： | LS SERIES, DECIMAL DECODER/DRIVER, INVERTED OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 107K |
| 代理商： | SN74LS42N |
SN74LS42
http://onsemi.com
3
FUNCTIONAL DESCRIPTION
The LS42 decoder accepts four active HIGH BCD inputs
and provides ten mutually exclusive active LOW outputs, as
shown by logic symbol or diagram. The active LOW outputs
facilitate addressing other MSI units with LOW input
enables.
The logic design of the LS42 ensures that all outputs
are HIGH when binary codes greater than nine are applied
to the inputs.
The most significant input A
3
produces a useful inhibit
function when the LS42 is used as a one-of-eight decoder.
The A
3
input can also be used as the Data input in an 8-output
demultiplexer application.
TRUTH TABLE
A
0
A
1
A
2
A
3
0
1
2
3
4
5
6
7
8
9
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS47D | BCD TO 7-SEGMENT DECODER/DRIVER |
| SN74LS47N | 1A, 5V,±4% Tolerance, Negative Voltage Regulator, Ta = -40°C to +125°C; Package: 3 LEAD D2PAK; No of Pins: 3; Container: Tape and Reel; Qty per Container: 800 |
| SN74LS48D | BCD TO 7-SEGMENT DECODER |
| SN74LS48N | BCD TO 7-SEGMENT DECODER |
| SN74LS490D | DUAL DECADE COUNTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS42N | 制造商:Texas Instruments 功能描述:Decoder / Encoder / Multiplexer / Demult |
| SN74LS42NE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 4-Ln BCD To 10-Ln Decimal Decoders RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74LS42NS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| SN74LS42NSR | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 4-Ln BCD To 10-Ln Decimal Decoders RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74LS42NSRE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 4-Ln BCD To 10-Ln Decimal Decoders RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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