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SN54ALS169B Datasheet(PDF) 4 Page - Texas Instruments

Part No. SN54ALS169B
Description  SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

SN54ALS169B Datasheet(HTML) 4 Page - Texas Instruments

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SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A
SYNCHRONOUS 4BIT UP/DOWN BINARY COUNTERS
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
QA
QB
QC
QD
Load
Count Up
Inhibit
13
14
15
0
0
12
Count Down
2
21
13
15
14
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: 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.


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