74HCT161N NXP Semiconductors, 74HCT161N Datasheet - Page 4
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74HCT161N
Manufacturer Part Number
74HCT161N
Description
Counter Single 4-Bit Sync Binary UP 16-Pin PDIP Bulk
Manufacturer
NXP Semiconductors
Type
Binaryr
Datasheet
1.74HC161N.pdf
(12 pages)
Specifications of 74HCT161N
Package
16PDIP
Logic Function
Counter
Logic Family
HCT
Operation Mode
UP Counter
Direction Type
Uni-Directional
Number Of Elements Per Chip
1
Preset Type
Synchronous
Typical Operating Supply Voltage
5 V
Operating Temperature
-40 to 125 °C
Counter Type
Binary
Clock Frequency
45MHz
Count Maximum
15
Supply Voltage Range
4.5V To 5.5V
Logic Case Style
DIP
No. Of Pins
16
Operating Temperature Range
-40°C To +125°C
Svhc
No SVHC
Base Number
74
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Philips Semiconductors
FUNCTION TABLE
Note
1. The TC output is HIGH when CET is HIGH and the counter is at terminal count (HHHH).
December 1990
reset (clear)
parallel load
count
hold
(do nothing)
Presettable synchronous 4-bit binary
counter; asynchronous reset
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition
L = LOW voltage level
I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition
q = lower case letters indicate the state of the referenced output one set-up time prior to the
X = don’t care
OPERATING MODE
= LOW-to-HIGH CP transition
LOW-to-HIGH CP transition
L
H
H
H
H
H
MR
X
X
X
Fig.4 Functional diagram.
CP
X
X
X
h
I
X
CEP
4
INPUTS
X
X
X
h
X
I
CET
X
I
I
h
h
h
PE
X
I
h
X
X
X
D
n
74HC/HCT161
Product specification
L
L
H
count
q
q
n
n
Q
OUTPUTS
n
L
L
(1)
(1)
(1)
L
TC