MM74HC4020 鈥?MM74HC4040 14-Stage Binary Counter 鈥?12-Stage Binary Counter
February 1984
Revised December 2003
MM74HC4020 鈥?MM74HC4040
14-Stage Binary Counter 鈥?12-Stage Binary Counter
General Description
The MM74HC4020, MM74HC4040, are high speed binary
ripple carry counters. These counters are implemented uti-
lizing advanced silicon-gate CMOS technology to achieve
speed performance similar to LS-TTL logic while retaining
the low power and high noise immunity of CMOS.
The MM74HC4020 is a 14 stage counter and the
MM74HC4040 is a 12-stage counter. Both devices are
incremented on the falling edge (negative transition) of the
input clock, and all their outputs are reset to a low level by
applying a logical high on their reset input.
These devices are pin equivalent to the CD4020 and
CD4040 respectively. All inputs are protected from damage
due to static discharge by protection diodes to V
CC
and
ground.
Features
s
Typical propagation delay: 16 ns
s
Wide operating voltage range: 2鈥?V
s
Low input current: 1
碌
A maximum
s
Low quiescent current: 80
碌
A maximum (74HC Series)
s
Output drive capability: 10 LS-TTL loads
Ordering Code:
Order Number
MM74HC4020M
(Note 1)
MM74HC4020SJ
MM74HC4020N
MM74HC4040M
(Note 1)
MM74HC4040SJ
(Note 1)
MM74HC4040MTC
(Note 1)
MM74HC4040N
Package Number
M16A
M16D
N16E
M16A
M16D
MTC16
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Note 1:
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Connection Diagrams
MM74HC4020
MM74HC4040
漏 2003 Fairchild Semiconductor Corporation
DS005216
www.fairchildsemi.com
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