SN54ALS190 Datasheet, PDF (6/8 Pages) Texas Instruments – SYNCHRONOUS 4-BIT UP/DOWN DECADE AND BINARY COUNTERS

SN54ALS190, SN54ALS191, SN74ALS190, SN74ALS191
SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTERS
SDAS210 – D2661, DECEMBER 1982 – REVISED MAY 1986
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Operating free-air temperature range: SN54ALS190, SN54ALS191 . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74ALS190, SN74ALS191 . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
recommended operating conditions
VCC
VIH
VIL
IOH
IOL
Supply voltage
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
fclock Clock frequency
tw
Pulse duration
tsu Setup time
tsu Hold time
TA
Operating free-air temperature
’ALS190
’ALS191
CLK high or low ^’AS190
‘AS191
LOAD low
Data before LOAD↑
CTEN before CLK↑
D/U before CLK↑
LOAD inactive before CLK↑
Data after LOAD↑
CTEN after CLK↑
D/U after CLK↑
SN54ALS190
SN54ALS191
MIN NOM MAX
4.5
5 5.5
2
0.7
– 0.4
4
0
20
0
20
25
20
25
25
45
45
20
5
0
0
– 55
125
SN74ALS190
SN74ALS191
MIN NOM MAX
4.5
5 5.5
2
0.8
– 0.4
8
0
25
0
30
20
16.5
20
20
20
20
20
5
0
0
0
70
UNIT
V
V
V
mA
mA
MHz
ns
ns
ns
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS190
SN54ALS191
MIN TYP† MAX
SN74AAL190
SN74ALS191
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 = 4.5 V,
VCC = 4.5 V,
IOL = 4 mA
IOL = 8 mA
0.25 0.5
0.25
0.4
V
0.35 0.5
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
CTEN OR CLK
IIL _{All others}
VCC = 5.5 V,
VI = 0.4 V
– 0.2
– 0.1
– 0.2
mA
– 0.1
IO‡
VCC = 5.5 V,
VO = 2.25 V
– 30
– 112 – 30
– 112 mA
ICC
VCC = 5.5 V,
All inputs at 0 V
12
22
12
22 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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