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SN54ALS169B Datasheet(PDF) 5 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) 5 Page - Texas Instruments

   
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SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SDAS125B – MARCH 1984 – REVISED DECEMBER 1994
2–5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54ALS169B
SN74ALS169B
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
0.7
0.8
V
IOH
High-level output current
– 0.4
– 0.4
mA
IOL
Low-level output current
4
8
mA
fclock
Clock frequency
0
22
0
40
MHz
tw
Pulse duration, CLK high or low
14
12.5
ns
A, B, C, or D
20
15
t
Setup time before CLK
ENP or ENT
25
15
ns
tsu
Setup time before CLK
LOAD
20
15
ns
U/D
28
15
th
Hold time, data after CLK
0
0
ns
TA
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS169B
SN74ALS169B
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.5
– 1.5
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC –2
VCC –2
V
VOL
VCC =4 5V
IOL = 4 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 8 mA
0.35
0.5
V
II
VCC = 5.5 V,
VI = 7 V
0.1
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
IIL
VCC = 5.5 V,
VI = 0.4 V
– 0.2
– 0.2
mA
IO‡
VCC = 5.5 V,
VO = 2.25 V
–20
–112
–30
–112
mA
ICC
VCC = 5.5 V
15
25
15
25
mA
† All typical values are at VCC = 5 V, TA = 25°C.
‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.


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