參數(shù)資料
型號: MC74HC4020AD
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: 14-Stage Binary Ripple Counter
中文描述: HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 14-BIT UP BINARY COUNTER, PDSO16
封裝: 0.150 INCH, PLASTIC, SOIC-16
文件頁數(shù): 1/8頁
文件大?。?/td> 194K
代理商: MC74HC4020AD
SEMICONDUCTOR TECHNICAL DATA
3–1
REV 1
Motorola, Inc. 1995
10/95
High–Performance Silicon–Gate CMOS
The MC74C4020A is identical in pinout to the standard CMOS
MC14020B. The device inputs are compatible with standard CMOS outputs;
with pullup resistors, they are compatible with LSTTL outputs.
This device consists of 14 master–slave flip–flops with 12 stages brought
out to pins. The output of each flip–flop feeds the next and the frequency at
each output is half of that of the preceding one. Reset is asynchronous and
active–high.
State changes of the Q outputs do not occur simultaneously because of
internal ripple delays. Therefore, decoded output signals are subject to
decoding spikes and may have to be gated with the Clock of the HC4020A
for some designs.
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2 to 6 V
Low Input Current: 1
μ
A
High Noise Immunity Characteristic of CMOS Devices
In Compliance With JEDEC Standard No. 7A Requirements
Chip Complexity: 398 FETs or 99.5 Equivalent Gates
LOGIC DIAGRAM
Q1
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
9
7
5
4
6
13
12
14
15
1
2
3
Clock
10
Reset
11
Pin 16 = VCC
Pin 8 = GND
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
Q11
Q10
Q8
Q9
Reset Clock
Q1
Q12
Q13
Q14
Q6
Q5
Q7
Q4
GND
Pinout: 16–Lead Plastic Package
(Top View)
FUNCTION TABLE
Clock
Reset
Output State
X
L
L
H
No Charge
Advance to Next State
All Outputs Are Low
D SUFFIX
SOIC PACKAGE
CASE 751B–05
N SUFFIX
PLASTIC PACKAGE
CASE 648–08
ORDERING INFORMATION
MC74HCXXXXAN
MC74HCXXXXAD
MC74HCXXXXADT
Plastic
SOIC
TSSOP
1
16
1
16
1
16
DT SUFFIX
TSSOP PACKAGE
CASE 948F–01
相關(guān)PDF資料
PDF描述
MC74HC4020ADT 14-Stage Binary Ripple Counter
MC74HC4020AN 14-Stage Binary Ripple Counter
MC74HC4024D 7-Stage Binary Ripple Counter
MC74HC4024N 7-Stage Binary Ripple Counter
MC74HC4049 Hex Buffers/Logic-Level Down Converters
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