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SN74AS169A Scheda tecnica(PDF) 7 Page - Texas Instruments

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Il numero della parte SN74AS169A
Spiegazioni elettronici  SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
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SN74AS169A Scheda tecnica(HTML) 7 Page - Texas Instruments

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SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SDAS125B – MARCH 1984 – REVISED DECEMBER 1994
2–7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS169A
SN74AS169A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
– 1.2
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = – 2 mA
VCC –2
VCC –2
V
VOL
VCC = 4.5 V,
IOL = 20 mA
0.25
0.5
0.25
0.5
V
II
LOAD, ENT, U/D
VCC =5 5V
VI =7V
0.2
0.2
mA
II
All others
VCC = 5.5 V,
VI = 7 V
0.1
0.1
mA
IIH
LOAD, ENT, U/D
VCC =5 5V
VI =2 7V
40
40
µA
IIH
All others
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
IIL
LOAD, ENT, U/D
VCC =5 5V
VI =0 4V
–1
–1
mA
IIL
All others
VCC = 5.5 V,
VI = 0.4 V
– 0.5
– 0.5
mA
IO‡
VCC = 5.5 V,
VO = 2.25 V
–30
–112
–30
–112
mA
ICC
VCC = 5.5 V
41
63
41
63
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.
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)
SN54AS169A
SN74AS169A
MIN
MAX
MIN
MAX
fmax*
60
75
MHz
tPLH
CLK
RCO
3
17.5
3
16.5
ns
tPHL
CLK
(LOAD high or low)
2
14
2
13
ns
tPLH
CLK
Any Q
1
7.5
1
7
ns
tPHL
CLK
Any Q
2
14
2
13
ns
tPLH
ENT
RCO
1.5
10
1.5
9
ns
tPHL
ENT
RCO
1.5
10
1.5
9
ns
tPLH
U/D
RCO
2
14
2
12
ns
tPHL
U/D
RCO
2
14.5
2
13
ns
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
§ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.


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