Datasheet Texas Instruments SN74ALS27AD — 数据表









 
 

  
SDAS112B -APRIL 1982 -REVISED DECEMBER 1994 SN54ALS27A, SN54AS27 . J PACKAGE
SN74ALS27A, SN74AS27 . D OR N PACKAGE
(TOP VIEW) Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs 1A
1B
2A
2B
2C
2Y
GND description
These devices contain three independent 3-input
positive-NOR gates. They perform the Boolean
functions Y = A B C or Y = A + B + C in positive
logic. INPUTS
C OUTPUT
Y H X X L X H X L X X H L L L L H 13 3 12 4 11 5 10 6 9 7 8 2A
NC
2B …