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SN54ALS169B Datasheet(PDF) 6 Page - Texas Instruments

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Part No. SN54ALS169B
Description  SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54ALS169B Datasheet(HTML) 6 Page - Texas Instruments

   
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SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SDAS125B – MARCH 1984 – REVISED DECEMBER 1994
2–6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX†
UNIT
(INPUT)
(OUTPUT)
SN54ALS169B
SN74ALS169B
MIN
MAX
MIN
MAX
fmax
22
40
MHz
tPLH
CLK
RCO
3
20
3
20
ns
tPHL
CLK
RCO
6
25
6
20
ns
tPLH
CLK
Any Q
2
20
2
15
ns
tPHL
CLK
Any Q
5
23
5
20
ns
tPLH
ENT
RCO
2
16
2
13
ns
tPHL
ENT
RCO
3
24
3
16
ns
tPLH
U/D
RCO
4
22
5
19
ns
tPHL
U/D
RCO
5
26
5
19
ns
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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: SN54AS169A
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74AS169A
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.
recommended operating conditions
SN54AS169A
SN74AS169A
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
2
V
VIL
Low-level input voltage
0.8
0.8
V
IOH
High-level output current
–2
–2
mA
IOL
Low-level output current
20
20
mA
fclock*
Clock frequency
0
60
0
75
MHz
tw*
Pulse duration, CLK high or low
7.7
6.7
ns
A, B, C, or D
10
8
t
*
Setup time before CLK
ENP or ENT
10
8
ns
tsu*
Setup time before CLK
LOAD
10
8
ns
U/D
14
11
th*
Hold time, data after CLK
2
0
ns
TA
Operating free-air temperature
–55
125
0
70
°C
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.


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