MC74HC161ADG ON Semiconductor, MC74HC161ADG Datasheet - Page 12
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MC74HC161ADG
Manufacturer Part Number
MC74HC161ADG
Description
IC COUNTER 4BIT PRESET 16SOIC
Manufacturer
ON Semiconductor
Series
74HCr
Datasheet
1.MC74HC161ADTG.pdf
(16 pages)
Specifications of MC74HC161ADG
Logic Type
Binary Counter
Direction
Up
Number Of Elements
1
Number Of Bits Per Element
4
Reset
Asynchronous
Timing
Synchronous
Count Rate
167MHz
Trigger Type
Positive Edge
Voltage - Supply
2 V ~ 6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Counter Type
Presettable
Clock Frequency
35MHz
Count Maximum
15
Supply Voltage Range
2V To 6V
Logic Case Style
SOIC
No. Of Pins
16
Operating Temperature Range
-55°C To +125°C
Family Type
HC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
H = COUNT
L = DISABLE
H = COUNT
L = DISABLE
ENABLE P
ENABLE T
CLOCK
CLOCK
RESET
RESET
LOAD
LOAD
NOTE: When used in these cascaded configurations the clock f
depend on number of stages. This limitation is due to set up times between Enable (Port) and Clock.
LOAD P0 P1 P2 P3
ENABLE P
ENABLE T
LOAD P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
CLOCK
R
Q0 Q1 Q2 Q3
Q0 Q1 Q2 Q3
OUTPUTS
INPUTS
OUTPUTS
INPUTS
RIPPLE
CARRY
RIPPLE
OUT
CARRY
OUT
Figure 14. N−Bit Synchronous Counters
TYPICAL APPLICATIONS CASCADING
Figure 15. Nibble Ripple Counter
http://onsemi.com
LOAD P0 P1 P2 P3
ENABLE P
ENABLE T
LOAD P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
CLOCK
R
Q0 Q1 Q2 Q3
Q0 Q1 Q2 Q3
12
OUTPUTS
INPUTS
OUTPUTS
max
INPUTS
RIPPLE
CARRY
RIPPLE
CARRY
OUT
guaranteed limits may not apply. Actual performance will
OUT
LOAD P0 P1 P2 P3
ENABLE P
ENABLE T
LOAD P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
CLOCK
R
Q0 Q1 Q2 Q3
Q0 Q1 Q2 Q3
OUTPUTS
INPUTS
OUTPUTS
INPUTS
RIPPLE
CARRY
RIPPLE
OUT
CARRY
OUT
SIGNIFICANT
SIGNIFICANT
TO MORE
TO MORE
STAGES
STAGES