Datasheet

SN54ALS299, SN74ALS299
8-BIT UNIVERSAL SHIFT/STORAGE REGISTERS
WITH 3-STATE OUTPUTS
SDAS220B – DECEMBER 1982 – REVISED DECEMBER 1994
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
logic diagram (positive logic)
C1
1D
C1
1D
Six
Identical
Channels
Not
Shown
19
11
12
8
2
3
18
17
S0
S1
SR
(shift right
serial input)
CLK
Q
A
OE1
OE2
SL
(shift left
serial input)
Q
H
716
A/Q
A
H/Q
H
9
CLR
1
RR
I/O ports not shown: B/Q
B
(13), C/Q
C
(6), D/Q
D
(14), E/Q
E
(5), F/Q
F
(15), and G/Q
G
(4).
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
: All inputs 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O ports 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: SN54ALS299 55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS299 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range 65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.