74VHC4040 12-Stage Binary Counter
May 2007
74VHC4040
12-Stage Binary Counter
Features
■
High speed; f
MAX
=
210MHz at V
CC
=
5V
■
Low power dissipation: I
CC
=
4µA (Max.) at T
A
=
25°C
■
High noise immunity: V
NIH
=
V
NIL
=
28% V
CC
(Min.)
■
Power down protection is provided on all inputs
■
Wide operating voltage range: V
CC
(Opr.)
=
2V – 5.5V
■
Low noise: V
OLP
=
0.8V (Max.)
■
Pin and function compatible with 74HC4040
tm
General Description
The VHC4040 is an advanced high-speed CMOS device
fabricated with silicon gate CMOS technology. It
achieves the high-speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation. The VHC4040 is a 12-stage counter
which increments on the negative edge of the input clock
and all outputs are reset to a low level by applying a
logical high on the reset input. An input protection circuit
insures that 0V to 7V can be applied to the inputs without
regard to the supply voltage. This device can be used to
interface 5V to 3V systems and two supply systems such
as battery backup. This circuit prevents device destruc-
tion due to mismatched supply and input voltages.
Ordering Information
Order Number
74VHC4040M
74VHC4040MTC
Package
Number
M16A
MTC16
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,
4.4mm Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the
ordering number.
Connection Diagram
Pin Descriptions
Pin Names
Q
0
–Q
11
CP
MR
Description
Flip-Flop Outputs
Negative Edged Triggered Clock
Master Reset
©1993 Fairchild Semiconductor Corporation
74VHC4040 Rev. 1.3
www.fairchildsemi.com
74VHC4040 12-Stage Binary Counter
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
V
CC
V
IN
V
OUT
I
IK
I
OK
I
OUT
I
CC
T
STG
T
L
Supply Voltage
DC Input Voltage
DC Output Voltage
Input Diode Current
Output Diode Current
DC Output Current
DC V
CC
/ GND Current
Storage Temperature
Parameter
Rating
–0.5V to +7.0V
–0.5V to +7.0V
–0.5V to V
CC
+ 0.5V
–20mA
±20mA
±25mA
±75mA
–65°C to +150°C
260°C
Lead Temperature (Soldering, 10 seconds)
Recommended Operating Conditions
(1)
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol
V
CC
V
IN
V
OUT
T
OPR
t
r
, t
f
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Rise and Fall Time
V
CC
=
3.3V ±0.3V
V
CC
=
5.0V ±0.5V
Parameter
Rating
2.0V to +5.5V
0V to +5.5V
0V to V
CC
–40°C to +85°C
0
∼
100ns/V
0
∼
20ns/V
Note:
1. Unused inputs must be held HIGH or LOW. They may not float.
©1993 Fairchild Semiconductor Corporation
74VHC4040 Rev. 1.3
www.fairchildsemi.com
4
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