Data Handbook for Fairchild MM74HC4020 4040 14-Stage Binary Counter and 12-Stage Binary Counter
Summary
These high-speed CMOS binary counters are essential components for digital electronics, featuring 14-stage and 12-stage counting capabilities while maintaining low power consumption and high noise immunity. This technical guide provides comprehensive specifications crucial for hardware designers, including detailed electrical characteristics, operation limits, timing diagrams, multiple package options (PDIP, SOIC, SOP), and AC parameters. It serves engineers who require reliable, precision counter circuitry for the development of advanced digital systems.
Page 1 Text Content
74H 4020 • M 74H 4040 14-S tag e B in ary C ter • 12-S tag e B in ary C ter
February 1984 Revised September 2001
MM74HC4020 • MM74HC4040 14-Stage Binary Counter • 12-Stage Binary Counter
These devices are pin equivalent to the CD4020 and
General Description
CD4040 respectively. All inputs are protected from damage
The MM74HC4020, MM74HC4040, are high speed binary
due to static discharge by protection diodes to VCC and
ripple carry counters. These counters are implemented uti-
ground.
lizing advanced silicon-gate CMOS technology to achieve speed performance similar to LS-TTL logic while retaining
Features
the low power and high noise immunity of CMOS.
The MM74HC4020 is a 14 stage counter and the ■Typical propagation delay: 16 ns
MM74HC4040 is a 12-stage counter. Both devices are ■Wide operating voltage range: 2–6V incremented on the falling edge (negative transition) of the
■Low input current: 1 µA maximum
input clock, and all their outputs are reset to a low level by
■Low quiescent current: 80 µA maximum (74HC Series)
applying a logical high on their reset input.
■Output drive capability: 10 LS-TTL loads
Ordering Code: Order Number Package Number Package Description MM74HC4020M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow MM74HC4020SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide MM74HC4020N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide MM74HC4040M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow MM74HC4040SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide MM74HC4040MTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide MM74HC4040N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
MM74HC4040
MM74HC4020
© 2001 Fairchild Semiconductor Corporation DS005216 www.fairchildsemi.com
Page Summary Contents For Data Handbook for Fairchild MM74HC4020 4040 14-Stage Binary Counter and 12-Stage Binary Counter
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 9 |
| File Size | 112.41 KB |
| Published | July 06, 2026 |
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Frequently Asked Questions
What is the operational difference between the MM74HC4020 and MM74HC4040?
The MM74HC4020 is a 14-stage counter, while the MM74HC4040 is a 12-stage binary counter.
What is the wide operating voltage range for these counters?
These devices are designed to operate over a wide voltage range of 2–6V.
How many LS-TTL loads can the output drive?
The chips have an output drive capability of up to 10 LS-TTL loads per pin.
Are these devices suitable for use in critical life support systems?
No, these products are not authorized for use as critical components in life support devices without written approval from Fairchild Semiconductor Corporation.