參數(shù)資料
型號(hào)： MC14022BD
廠商： ON SEMICONDUCTOR
元件分類： 通用總線功能
英文描述： Octal Counter
中文描述： 4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT UP RING COUNTER, PDSO16
封裝： PLASTIC, SOIC-16
文件頁(yè)數(shù)： 1/7頁(yè)
文件大?。?/td> 262K
代理商： MC14022BD
MOTOROLA CMOS LOGIC DATA
Motorola, Inc. 1995
93
MC14022B
The MC14022B is a four–stage Johnson octal counter with built–in code
converter. High–speed operation and spike–free outputs are obtained by
use of a Johnson octal counter design. The eight decoded outputs are
normally low, and go high only at their appropriate octal time period. The
output changes occur on the positive–going edge of the clock pulse. This
part can be used in frequency division applications as well as octal counter
or octal decode display applications.
Fully Static Operation
DC Clock Input Circuit Allows Slow Rise Times
Carry Out Output for Cascading
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
Triple Diode Protection on All Inputs
per Pin
PD
Tstg
TL
* Maximum Ratings are those values beyond which damage to the device may occur.
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C
Ceramic “L” Packages: – 12 mW/ C From 100 C To 125 C
Power Dissipation, per Package
Storage Temperature
500
– 65 to + 150
mW
C
Lead Temperature (8–Second Soldering)
260
C
LOGIC DIAGRAM
11
1
5
7
Q4
Q1
Q6
Q3
12
14
13
CLOCK
CLOCK
ENABLE
RESET
15
VSS
VDD
Q0
Q5
Q2
Q7
2
4
3
10
CARRY
C
C
DR
Q
Q
C
C
DR
Q
Q
C
C
DR
Q
Q
C
C
DR
Q
Q
SEMICONDUCTOR TECHNICAL DATA
REV 3
1/94
L SUFFIX
CERAMIC
CASE 620
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBD
TA = – 55
°
to 125
°
C for all packages.
Plastic
Ceramic
SOIC
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
BLOCK DIAGRAM
FUNCTIONAL TRUTH TABLE
(Positive Logic)
Clock
Enable
Clock
Reset
Output=n
0
X
X
1
0
X
0
0
0
0
0
0
1
n
n
n+1
n
n+1
n
Q0
1
X
X
X
X = Don’t Care. If n < 4 Carry = 1,
Otherwise = 0.
12
10
5
4
11
7
3
1
2
Cout
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
14
13
15
CLOCK
CLOCK
ENABLE
RESET
VDD = PIN 16
VSS = PIN 8
NC = PIN 6, 9
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