파트넘버.co.kr 74LCX157SJ 데이터시트 PDF


74LCX157SJ 반도체 회로 부품 판매점

Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs



Fairchild Semiconductor 로고
Fairchild Semiconductor
74LCX157SJ 데이터시트, 핀배열, 회로
May 1995
Revised March 1999
74LCX157
Low Voltage Quad 2-Input Multiplexer with 5V Tolerant
Inputs
General Description
The LCX157 is a high-speed quad 2-input multiplexer. Four
bits of data from two sources can be selected using the
common Select and Enable inputs. The four outputs
present the selected data in the true (noninverted) form.
The LCX157 can also be used as a function generator.
The 74LCX157 is fabricated with advanced CMOS technol-
ogy to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
s 5V tolerant inputs
s 2.3V–3.6V VCC specifications provided
s 5.8 ns tPD max (VCC = 3.3V), 10 µA ICC max
s Power down high impedance inputs and outputs
s ±24 mA output drive (VCC = 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Order Number Package Number
Package Description
74LCX157M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow
74LCX157SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCX157MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
I0a–I0d
I1a–I1d
E
S
Za–Zd
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Outputs
© 1999 Fairchild Semiconductor Corporation DS012465.prf
www.fairchildsemi.com


74LCX157SJ 데이터시트, 핀배열, 회로
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
Inputs
ES
I0
HX
X
LH
X
LH
X
LL
L
LL
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Outputs
I1 Z
XL
LL
HH
XL
XH
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.
www.fairchildsemi.com
2




PDF 파일 내의 페이지 : 총 8 페이지

제조업체: Fairchild Semiconductor

( fairchild )

74LCX157SJ multiplexer

데이터시트 다운로드
:

[ 74LCX157SJ.PDF ]

[ 74LCX157SJ 다른 제조사 검색 ]




국내 전력반도체 판매점


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743



일반적인 전자부품 판매점


디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14


관련 데이터시트


74LCX157SJ

Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs - Fairchild Semiconductor