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PARAMETER

SYMBOL

MIN

MAX

UNITS

DC Supply Voltage

VCC

2

6

V

DC Input or Output Voltage

VIN ,VOUT

0

VCC

V

Operating Temperature Range

TJ

-55

+125

°C

VCC = 2.0V

0

1000

VCC = 4.5V

0

500

Input Rise or Fall Times

VCC = 6.0V

tr, tf

0

400

ns

Recommended Operating Conditions

3

(Voltages referenced to GND)

Absolute Maximum Ratings

1

PARAMETER

SYMBOL

VALUE

UNIT

DC Supply Voltage (Referenced to GND)

VCC

-0.5 to +7.0

V

DC Input Voltage (Referenced to GND)

VIN

-0.5 to VCC +0.5

V

DC Output Voltage

VOUT

-0.5 to VCC +0.5

V

DC Input Current, per pad

IIN

±20

mA

DC Output Current, per pad

IOUT

±25

mA

DC VCC or GND Current, per pad

ICC

±50

mA

Power Dissipation in Still Air

2

PD

750

mW

Storage Temperature Range

TSTG

-65 to 150

°C

Rev 1.0

15/09/25

1. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for extended periods, may

reduce device reliability. 2. Measured in plastic DIP package, results in die form are dependent on die attach and assembly method.

Pad Descriptions

INPUTS

Clock (Pad 10)

Negative–edge triggering clock input. A high–to–low transition on this input advances the state of the counter,

Reset (Pad 11)

Active–high reset. A high level applied to this input asynchronously resets the counter to its zero state (forcing all Q outputs low).

OUTPUTS

Q1–Q12 (Pads 9, 7, 6, 5, 3, 2, 4, 13, 12, 14, 15, 1)

Active–high outputs. Each Qn output divides the Clock input frequency by 2

N.

3. This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken

to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be

constrained to the range GND

≤ (VIN or VOUT) ≤ VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC).

Unused outputs must be left open.

High Speed CMOS Logic – 54HC4040