參數(shù)資料
型號(hào)： DM74LS279N
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Quad 2-Input NOR Gate
中文描述： LS SERIES, QUAD LOW LEVEL TRIGGERED R-S LATCH, TRUE OUTPUT, PDIP16
封裝： 0.300 INCH, PLASTIC, MS-001, DIP-16
文件頁數(shù)： 1/4頁
文件大?。?/td> 47K
代理商： DM74LS279N
2000 Fairchild Semiconductor Corporation
DS006420
www.fairchildsemi.com
August 1986
Revised March 2000
D
DM74LS279
Quad S-R Latch
General Description
The DM74LS279 consists of four individual and indepen-
dent Set-Reset Latches with active low inputs. Two of the
four latches have an additional S input ANDed with the pri-
mary S input. A LOW on any S input while the R input is
HIGH will be stored in the latch and appear on the corre-
sponding Q output as a HIGH. A LOW on the R input while
the S input is HIGH will clear the Q output to a LOW. Simul-
taneous transition of the R and S inputs from LOW-to-
HIGH will cause the Q output to be indeterminate. Both
inputs are voltage level triggered and are not affected by
transition time of the input data.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
H
=
HIGH Level
L
=
LOW Level
Q
0
=
The Level of Q before the indicated input conditions were established.
Note 1:
For latches with double S inputs:
H
=
both S inputs HIGH
L
=
one or both S inputs LOW
Note 2:
This output level is pseudo stable; that is, it may not persist when
the S and R inputs return to their inactive (HIGH) level.
Order Number
DM74LS279M
DM74LS279N
Package Number
M16A
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs
Output
S (Note 1)
L
L
H
H
R
L
H
L
H
Q
H (Note 2)
H
L
Q
0
相關(guān)PDF資料
PDF描述
DM74LS279MX S-R-Type Latch
DM74LS27 Quad 2-Input NAND Gate; Package: SOIC; No of Pins: 14; Container: Tape & Reel
DM74LS27M Quad 2-Input NOR Gate
DM74LS27N Quad 2-Input NOR Gate; Package: SOP; No of Pins: 14; Container: Rail
DM74LS27MX Triple 3-input NOR Gate
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DM74LS27M 功能描述:邏輯門 Trp 3-Input NOR Gate RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel
DM74LS27MX 功能描述:邏輯門 Trp 3-Input NOR Gate RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel
DM74LS27N 功能描述:邏輯門 Trp 3-Input NOR Gate RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel
DM74LS27N/A+ 制造商:Texas Instruments 功能描述:
DM74LS283 WAF 制造商:Texas Instruments 功能描述:
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