MC74HC4020A_14 Datasheet, PDF (1/8 Pages) ON Semiconductor – 14-Stage Binary Ripple Counter

MC74HC4020A
14-Stage Binary Ripple
Counter
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.
Features
• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1 mA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance With JEDEC Standard No. 7A Requirements
• Chip Complexity: 398 FETs or 99.5 Equivalent Gates
• NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Clock ¹⁰
Reset ¹¹
9 _Q1
7 _Q4
5 _Q5
4 _Q6
6 _Q7
13 _Q8
12 _Q9
14 _Q10
15 _Q11
1 _Q12
2 _Q13
3 _Q14
Pin 16 = V_CC
Pin 8 = GND
Figure 1. Logic Diagram
http://onsemi.com
SOIC−16
D SUFFIX
CASE 751B
TSSOP−16
DT SUFFIX
CASE 948F
PIN ASSIGNMENT
V_CC Q11 Q10 Q8 Q9 Reset Clock Q1
16 15 14 13 12 11 10 9
12345678
Q12 Q13 Q14 Q6 Q5 Q7 Q4 GND
16−Lead Package (Top View)
MARKING DIAGRAMS
16
HC4020AG
AWLYWW
1
SOIC−16
16
HC40
20A
ALYWG
G
1
TSSOP−16
A
L, WL
Y, YY
W, WW
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
Clock
X
FUNCTION TABLE
Reset
L
L
H
Output State
No Change
Advance to Next State
All Outputs Are Low
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
August, 2014 − Rev. 8
Publication Order Number:
MC74HC4020A/D