Datasheet

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SDAS125B − MARCH 1984 − REVISED DECEMBER 1994
2−4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
typical load, count, and inhibit sequences
The following sequence is illustrated below:
1. Load (preset) to binary 13
2. Count up to 14, 15 (maximum), 0, 1, and 2
3. Inhibit
4. Count down to 1, 0 (minimum), 15, 14, and 13
Data
Inputs
Data
Outputs
LOAD
A
B
C
D
CLK
U/D
ENP and ENT
RCO
Q
A
Q
B
Q
C
Q
D
Load
Count Up Inhibit
13 14
15 0 012
Count Down
221 1315 14
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: SN54ALS169B −55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS169B 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.