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74AC161SCX

P1-P3P4-P6P7-P9P10-P11
www.fairchildsemi.com 4
74AC161 • 74ACT161
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACT circuits outside databook specifications.
DC Electrical Characteristics for AC
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: I
IN
and I
CC
@ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V V
CC
.
Supply Voltage (V
CC
) −0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
= −0.5V −20 mA
V
I
= V
CC
+ 0.5V +20 mA
DC Input Voltage (V
I
) −0.5V to V
CC
+ 0.5V
DC Output Diode Current (I
OK
)
V
O
= −0.5V −20 mA
V
O
= V
CC
+ 0.5V +20 mA
DC Output Voltage (V
O
) −0.5V to V
CC
+ 0.5V
DC Output Source
or Sink Current (I
O
) ±50 mA
DC V
CC
or Ground Current
per Output Pin (I
CC
or I
GND
) ±50 mA
Storage Temperature (T
STG
) −65°C to +150°C
Junction Temperature (T
J
)
PDIP 140
°C
Supply Voltage (V
CC
)
AC 2.0V to 6.0V
ACT 4.5V to 5.5V
Input Voltage (V
I
) 0V to V
CC
Output Voltage (V
O
) 0V to V
CC
Operating Temperature (T
A
) −40°C to +85°C
Minimum Input Edge Rate (
∆V/∆t)
AC Devices
V
IN
from 30% to 70% of V
CC
V
CC
@ 3.3V, 4.5V, 5.5V 125 mV/ns
Minimum Input Edge Rate (
∆V/∆t)
ACT Devices
V
IN
from 0.8V to 2.0V
V
CC
@ 4.5V, 5.5V 125 mV/ns
Symbol Parameter
V
CC
T
A
= +25°C T
A
= −40°C to +85°C
Units Conditions
(V) Typ Guaranteed Limits
V
IH
Minimum HIGH Level 3.0 1.5 2.1 2.1 V
OUT
= 0.1V
Input Voltage 4.5 2.25 3.15 3.15 V or V
CC
− 0.1V
5.5 2.75 3.85 3.85
V
IL
Maximum LOW Level 3.0 1.5 0.9 0.9 V
OUT
= 0.1V
Input Voltage 4.5 2.25 1.35 1.35 V or V
CC
− 0.1V
5.5 2.75 1.65 1.65
V
OH
Minimum HIGH Level 3.0 2.99 2.9 2.9
Output Voltage 4.5 4.49 4.4 4.4 V I
OUT
= −50 µA
5.5 5.49 5.4 5.4
V
IN
= V
IL
or V
IH
3.0 2.56 2.46 I
OH
= −12 mA
4.5 3.86 3.76 V I
OH
= −24 mA
5.5 4.86 4.76 I
OH
= −24 mA (Note 2)
V
OL
Maximum LOW Level 3.0 0.002 0.1 0.1
Output Voltage 4.5 0.001 0.1 0.1 V I
OUT
= 50 µA
5.5 0.001 0.1 0.1
V
IN
= V
IL
or V
IH
3.0 0.36 0.44 I
OL
= 12 mA
4.5 0.36 0.44 V I
OL
= 24 mA
5.5 0.36 0.44 I
OL
= 24 mA (Note 2)
I
IN
Maximum Input
5.5 ±0.1 ±1.0 µAV
I
= V
CC
, GND
(Note 4) Leakage Current
I
OLD
Minimum Dynamic 5.5 75 mA V
OLD
= 1.65V Max
I
OHD
Output Current (Note 3) 5.5 −75 mA V
OHD
= 3.85V Min
I
CC
Maximum Quiescent
5.5 4.0 40.0 µA
V
IN
= V
CC
(Note 4) Supply Current or GND
5 www.fairchildsemi.com
74AC161 • 74ACT161
DC Electrical Characteristics for ACT
Note 5: All outputs loaded; thresholds on input associated with output under test.
Note 6: Maximum test duration 2.0 ms, one output loaded at a time.
AC Electrical Characteristics for AC
Note 7: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
Symbol Parameter
V
CC
T
A
= +25°C T
A
= −40°C to +85°C
Units Conditions
(V) Typ Guaranteed Limits
V
IH
Minimum HIGH Level 4.5 1.5 2.0 2.0
V
V
OUT
= 0.1V
Input Voltage 5.5 1.5 2.0 2.0 or V
CC
− 0.1V
V
IL
Maximum LOW Level 4.5 1.5 0.8 0.8 V V
OUT
= 0.1V
Input Voltage 5.5 1.5 0.8 0.8 or V
CC
− 0.1V
V
OH
Minimum HIGH Level 4.5 4.49 4.4 4.4
V
I
OUT
= −50 µA
Output Voltage 5.5 5.49 5.4 5.4
V
IN
= V
IL
or V
IH
4.5 3.86 3.76 V I
OH
= −24 mA
5.54.864.76I
OH
= −24 mA (Note 5)
V
OL
Maximum LOW Level 4.5 0.001 0.1 0.1
V
I
OUT
= 50 µA
Output Voltage 5.5 0.001 0.1 0.1
V
IN
= V
IL
or V
IH
4.5 0.36 0.44 V I
OL
= 24 mA
5.50.360.44I
OL
= 24 mA (Note 5)
I
IN
Maximum Input
5.5 ±0.1 ±1.0 µAV
I
= V
CC
, GND
Leakage Current
I
CCT
Maximum
5.5 0.6 1.5 mA
V
I
= V
CC
− 2.1V
I
CC
/Input
I
OLD
Minimum Dynamic 5.5 75 mA V
OLD
= 1.65V Max
I
OHD
Output Current (Note 6) 5.5 −75 mA V
OHD
= 3.85V Min
I
CC
Maximum Quiescent
5.5 4.0 40.0 µA
V
IN
= V
CC
Supply Current or GND
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Symbol Parameter (V)
C
L
= 50 pF C
L
= 50 pF
Units
(Note 7) Min Typ Max Min Max
f
MAX
Maximum Count 3.3 70 111 60
MHz
Frequency 5.0 110 167 95
t
PLH
Propagation Delay CP to Q
n
3.3 2.0 7.0 12 1.5 13.5
ns
(PE Input HIGH or LOW) 5.0 1.5 5.0 9.0 1.0 9.5
t
PHL
Propagation Delay CP to Q
n
3.3 1.5 7.0 12 1.5 13
ns
(PE Input HIGH or LOW) 5.0 1.5 5.0 9.5 1.5 10
t
PLH
Propagation Delay 3.3 3.0 9 15 2.5 16.5
ns
CP to TC 5.0 2.0 6 10.5 1.5 11.5
t
PHL
Propagation Delay 3.3 3.5 8.5 14 2.5 15.5
ns
CP to TC 5.0 2.0 6.5 11 2.0 11.5
t
PLH
Propagation Delay 3.3 2.0 5.5 9.5 1.5 11
ns
CET to TC 5.0 1.5 3.5 6.5 1.0 7.5
t
PHL
Propagation Delay 3.3 2.5 6.5 11 2.0 12.5
ns
CET to TC 5.0 2.0 5 8.5 1.5 9.5
t
PHL
Propagation Delay 3.3 2.0 6.5 12 1.5 13.5
ns
MR to Q
n
5.0 1.5 5.5 9.5 1.5 10
t
PHL
Propagation Delay 3.3 3.5 10 15 3.0 17.5
ns
MR to TC 5.0 2.5 8.5 13 2.5 13.5
www.fairchildsemi.com 6
74AC161 • 74ACT161
AC Operating Requirements for AC
Note 8: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
AC Electrical Characteristics for ACT
Note 9: Voltage Range 5.0 is 5.0V ± 0.5V
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Symbol Parameter (V)
C
L
= 50 pF C
L
= 50 pF
Units
(Note 8) Typ Guaranteed Minimum
t
S
Setup Time, HIGH or LOW 3.3 6.0 13.5 16
ns
P
n
to CP 5.0 3.5 8.5 10.5
t
H
Hold Time, HIGH or LOW 3.3 −7.0 −1 −0.5
ns
P
n
to CP 5.0 −4.0 0 0
t
S
Setup Time, HIGH or LOW 3.3 6.5 11.5 14
ns
PE to CP 5.0 4.0 7.5 8.5
t
H
Hold Time, HIGH or LOW 3.3 −6.0 0 0
ns
PE
to CP 5.0 −3.5 0.5 1
t
S
Setup Time, HIGH or LOW 3.3 3.0 6.0 7
ns
CEP or CET to CP 5.0 2.0 4.5 5
t
H
Hold Time, HIGH or LOW 3.3 −3.5 0 0
ns
CEP or CET to CP 5.0 −20 0.5
t
W
Clock Pulse Width 3.3 2.0 3.5 4
ns
(Load) HIGH or LOW 5.0 2.0 2.5 3
t
W
Clock Pulse Width 3.3 2.0 4.0 4.5
ns
(Count) HIGH or LOW 5.0 2.0 3.0 3.5
t
W
MR Pulse Width, 3.3 3.0 5.5 7.5
ns
LOW 5.0 2.5 4.5 6.0
t
REC
Recovery Time −2 −0.5 0
ns
MR
to CP −10 0.5
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Symbol Parameter (V)
C
L
= 50 pF C
L
= 50 pF
Units
(Note 9) Min Typ Max Min Max
f
MAX
Maximum Count
5.0 115 125 100 MHz
Frequency
t
PLH
Propagation Delay CP to Q
n
5.0 1.5 5.5 9.5 1.5 10.5 ns
(PE Input HIGH or LOW)
t
PHL
Propagation Delay CP to Q
n
5.0 1.5 6.0 10.5 1.5 11.5 ns
(PE
Input HIGH or LOW)
t
PLH
Propagation Delay
5.0 2.0 7.0 11.0 1.5 12.5 ns
CP to TC
t
PHL
Propagation Delay
5.0 1.5 8.0 12.5 1.5 13.5 ns
CP to TC
t
PLH
Propagation Delay
5.0 1.5 5.5 8.5 1.5 10.0 ns
CET to TC
t
PHL
Propagation Delay
5.0 1.5 6.5 9.5 1.5 10.5 ns
CET to TC
t
PHL
Propagation Delay
5.0 1.5 6.0 10.0 1.5 11.0 ns
MR to Q
n
t
PHL
Propagation Delay
5.0 2.5 8.0 13.5 2.0 14.5 ns
MR to TC
P1-P3P4-P6P7-P9P10-P11

74AC161SCX

Mfr. #:
Buy 74AC161SCX
Manufacturer:
ON Semiconductor
Description:
IC COUNTER BINARY SYNC 16SOIC
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