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MC74HC4040A_14 Datasheet, PDF (1/8 Pages) ON Semiconductor – 12-Stage Binary Ripple Counter | |||
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MC74HC4040A
12-Stage Binary Ripple
Counter
HighâPerformance SiliconâGate CMOS
The MC74C4040A is identical in pinout to the standard CMOS
MC14040. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LSTTL
outputs.
This device consists of 12 masterâslave flipâflops. The output of
each flipâflop feeds the next and the frequency at each output is half of
that of the preceding one. The state counter advances on the
negativeâgoing edge of the Clock input. Reset is asynchronous and
activeâhigh.
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
HC4040A 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; AECâQ100
Qualified and PPAP Capable
⢠These Devices are PbâFree, Halogen Free and are RoHS Compliant
Clock 10
Reset 11
9 Q1
7 Q2
6 Q3
5 Q4
3 Q5
2 Q6
4 Q7
13 Q8
12 Q9
14 Q10
15 Q11
1 Q12
Pin 16 = VCC
Pin 8 = GND
Figure 1. Logic Diagram
http://onsemi.com
SOICâ16
D SUFFIX
CASE 751B
TSSOPâ16
DT SUFFIX
CASE 948F
PIN ASSIGNMENT
VCC Q11 Q10 Q8 Q9 Reset Clock Q1
16 15 14 13 12 11 10 9
12345678
Q12 Q6 Q5 Q7 Q4 Q3 Q2 GND
16âLead Package (Top View)
MARKING DIAGRAMS
16
HC4040AG
AWLYWW
1
SOICâ16
16
HC40
40A
ALYWG
G
1
TSSOPâ16
A
L, WL
Y, YY
W, WW
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbâFree Package
(Note: Microdot may be in either location)
Clock
X
FUNCTION TABLE
Reset
L
L
H
Output State
No Charge
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 â Rev. 9
Publication Order Number:
MC74HC4040A/D
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