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부품번호 | DM74ALS253 기능 |
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기능 | 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer | ||
제조업체 | Fairchild Semiconductor | ||
로고 | |||
전체 5 페이지수
April 1984
Revised February 2000
DM74ALS253
3-STATE Dual 1-of-4 Line Data Selector/Multiplexer
General Description
This Data Selector/Multiplexer contains full on-chip decod-
ing to select one-of-four data sources as a result of a
unique two-bit binary code at the Select Inputs. Each of the
two Data Selector/Multiplexer circuits have their own sepa-
rate Data and Output Control inputs and a non-inverting 3-
STATE output buffer. The Output Control inputs, when at
the high level, place the corresponding output in the high
impedance OFF-State. In order to prevent bus access con-
flicts, output disable times are shorter than output enable
times. The Select input buffers incorporate internal overlap
features to ensure that select input changes do not cause
invalid output transients.
Features
s Advanced oxide-isolated, ion-implanted Schottky TTL
process
s Switching performance is guaranteed over full tempera-
ture and VCC supply range
s Pin and functional compatible with LS family counterpart
s Improved output transient handling capability
s Output control circuitry incorporates power-up 3-STATE
feature
Ordering Code:
Order Number Package Number
Package Description
DM74ALS253M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74ALS253N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Select
Data Inputs
Output
Inputs
Control
B A C0 C1 C2 C3
G
XX X X X X
H
LL L X X X
L
LL H X X X
L
LH X L X X
L
LH X H X X
L
HL X X L X
L
HL X X H X
L
HH X X X L
L
HH X X X H
L
Address inputs A and B are common to both sections
H = HIGH Level
L = LOW Level
X = Don't Care
Z = High Impedance
Output
Y
Z
L
H
L
H
L
H
L
H
© 2000 Fairchild Semiconductor Corporation DS006215
www.fairchildsemi.com
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M16A
www.fairchildsemi.com
4
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
DM74ALS251 | 3-STATE 1-of-8 Line Data Selector/Multiplexer | Fairchild Semiconductor |
DM74ALS253 | 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer | Fairchild Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |