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參數(shù)資料
| 型號(hào)： | 74LCX157SJ |
| 廠商： | Fairchild Semiconductor |
| 文件頁(yè)數(shù)： | 2/9頁(yè) |
| 文件大小： | 0K |
| 描述： | MULTIPLEXER QUAD 2IN LV 16SOP |
| 標(biāo)準(zhǔn)包裝： | 47 |
| 系列： | 74LCX |
| 類(lèi)型： | 多路復(fù)用器 |
| 電路： | 4 x 2:1 |
| 獨(dú)立電路： | 1 |
| 輸出電流高，低： | 24mA，24mA |
| 電壓電源： | 單電源 |
| 電源電壓： | 2 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOP |
| 包裝： | 管件 |
www.fairchildsemi.com
2
74LCX157
Functional Description
The LCX157 is a quad 2-input multiplexer. It selects four
bits of data from two sources under the control of a com-
mon Select input (S). The Enable input (E) is active-LOW.
When E is HIGH, all of the outputs (Z) are forced LOW
regardless of all other inputs. The LCX157 is the logic
implementation of a 4-pole, 2-position switch where the
position of the switch is determined by the logic levels sup-
plied to the Select input. The logic equations for the outputs
are shown below:
Za = E (I1a S + I0a S)
Zb = E (I1b S + I0b S)
Zc = E (I1c S + I0c S)
Zd = E (I1d S + I0d S)
A common use of the LCX157 is the moving of data from
two groups of registers to four common output busses. The
particular register from which the data comes is determined
by the state of the Select input. A less obvious use is as a
function generator. The LCX157 can generate any four of
the sixteen different functions of two variables with one
variable common. This is useful for implementing gating
functions.
Truth Table
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Immaterial
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
Inputs
Outputs
E
SI0
I1
Z
HX
X
L
LH
X
L
LH
X
H
LL
L
X
L
LL
H
X
H
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| 74LCX157SJX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Qd 2-Input Multiplex 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 |
| 74LCX157TTR | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-Ch Multiplexr 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 |
| 74LCX162244 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS |
| 74LCX162244_07 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Low voltage CMOS 16-bit bus buffer (3-state) with 5V tolerant inputs and outputs |
| 74LCX162244GX | 功能描述:緩沖器和線路驅(qū)動(dòng)器 DVR LV 16-B Buf/Line 26 Ohm Res Out RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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