C0083C0078C0053C0052C0072C0067C0052C0048C0052C0048C0044 C0083C0078C0055C0052C0072C0067C0052C0048C0052C0048
C0049C0050C0262C0066C0073C0084 C0065C0083C0089C0078C0067C0072C0082C0079C0078C0079C0085C0083 C0066C0073C0078C0065C0082C0089 C0067C0079C0085C0078C0084C0069C0082C0083
SCLS160D − DECEMBER 1982 − REVISED SEPTEMBER 2003
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
C0068 Wide Operating Voltage Range of 2 V to 6 V
C0068 Outputs Can Drive Up To 10 LSTTL Loads
C0068 Low Power Consumption, 80-µA Max I
CC
C0068 Typical t
pd
= 12 ns
C0068 ±4-mA Output Drive at 5 V
C0068 Low Input Current of 1 µA Max

SN54HC4040 ...J OR W PACKAGE
SN74HC4040 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54HC4040 . . . FK PACKAGE
(TOP VIEW)
NC − No internal connection
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Q
L
Q
F
Q
E
Q
G
Q
D
Q
C
Q
B
GND
V
CC
Q
K
Q
J
Q
H
Q
I
CLR
CLK
Q
A
3212019
910111213
4
5
6
7
8
18
17
16
15
14
Q
J
Q
H
NC
Q
I
CLR
Q
E
Q
G
NC
Q
D
Q
C
Q Q NC
A
CLK
V Q
B
GND
NC
CC
F L K
Q
Q
description/ordering information
The ’HC4040 devices are 12-stage asynchronous binary counters, with the outputs of all stages available
externally. A high level at the clear (CLR) input asynchronously clears the counter and resets all outputs low.
The count is advanced on a high-to-low transition at the clock (CLK) input. Applications include time-delay
circuits, counter controls, and frequency-dividing circuits.
ORDERING INFORMATION
T
A
PACKAGE
†
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N Tube of 25 SN74HC4040N SN74HC4040N
Tube of 40 SN74HC4040D
SOIC − D
Reel of 2500 SN74HC4040DR
HC4040
Reel of 250 SN74HC4040DT
−40°C to 85°C
SOP − NS Reel of 2000 SN74HC4040NSR HC4040
SSOP − DB Reel of 2000 SN74HC4040DBR HC4040
Tube of 90 SN74HC4040PW
TSSOP − PW
Reel of 2000 SN74HC4040PWR
HC4040
Reel of 250 SN74HC4040PWT
CDIP − J Tube of 25 SNJ54HC4040J SNJ54HC4040J
−55°C to 125°C
CFP − W Tube of 150 SNJ54HC4040W SNJ54HC4040W
LCCC − FK Tube of 55 SNJ54HC4040FK SNJ54HC4040FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright  2003, Texas Instruments IncorporatedC0080C0082C0079C0068C0085C0067C0084C0073C0079C0078 C0068C0065C0084C0065 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0105C0115 C0099C0117C0114C0114C0101C0110C0116 C0097C0115 C0111C0102 C0112C0117C0098C0108C0105C0099C0097C0116C0105C0111C0110 C0100C0097C0116C0101C0046
C0080C0114C0111C0100C0117C0099C0116C0115 C0099C0111C0110C0102C0111C0114C0109 C0116C0111 C0115C0112C0101C0099C0105C0102C0105C0099C0097C0116C0105C0111C0110C0115 C0112C0101C0114 C0116C0104C0101 C0116C0101C0114C0109C0115 C0111C0102 C0084C0101C0120C0097C0115 C0073C0110C0115C0116C0114C0117C0109C0101C0110C0116C0115
C0115C0116C0097C0110C0100C0097C0114C0100 C0119C0097C0114C0114C0097C0110C0116C0121C0046 C0080C0114C0111C0100C0117C0099C0116C0105C0111C0110 C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C0111C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101
C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
C0079C0110 C0112C0114C0111C0100C0117C0099C0116C0115 C0099C0111C0109C0112C0108C0105C0097C0110C0116 C0116C0111 C0077C0073C0076C0262C0080C0082C0070C0262C0051C0056C0053C0051C0053C0044 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115 C0097C0114C0101 C0116C0101C0115C0116C0101C0100
C0117C0110C0108C0101C0115C0115 C0111C0116C0104C0101C0114C0119C0105C0115C0101 C0110C0111C0116C0101C0100C0046 C0079C0110 C0097C0108C0108 C0111C0116C0104C0101C0114 C0112C0114C0111C0100C0117C0099C0116C0115C0044 C0112C0114C0111C0100C0117C0099C0116C0105C0111C0110
C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C0111C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101 C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046