74LS20
器件描述：Dual 4-Input NAND Gate
器件厂商：FAIRCHILD [Fairchild Semiconductor]
文件大小：45.77KB，共4页
Sponsor by e络盟器件资料摘要：
© 2000 Fairchild Semiconductor Corporation DS006355 www.fairchildsemi.com
June 1986
Revised March 2000
DM74LS20 Dual
4-
Input
N
AND G
a
te
DM74LS20
Dual 4-Input NAND Gate
General Description
This device contains two independent gates each of which
performs the logic NAND function.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram Function Table
Y = ABCD
H = HIGH Logic Level
L = LOW Logic Level
X = Either LOW or HIGH Logic Level
Order Number Package Number Package Description
DM74LS20M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS20N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs Output
ABCDY
XXXLH
XXLX
XLX H
LXXX
HHHHL
June 1986
Revised March 2000
DM74LS20 Dual
4-
Input
N
AND G
a
te
DM74LS20
Dual 4-Input NAND Gate
General Description
This device contains two independent gates each of which
performs the logic NAND function.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram Function Table
Y = ABCD
H = HIGH Logic Level
L = LOW Logic Level
X = Either LOW or HIGH Logic Level
Order Number Package Number Package Description
DM74LS20M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS20N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs Output
ABCDY
XXXLH
XXLX
XLX H
LXXX
HHHHL