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74HC4040N-74HC4040PW-74HCT4040D-74HCT4040DB-74HCT4040N-74HCT4040PW
74HC/HCT4040; 12-stage binary ripple counter

Philips Semiconductors Product specification
12-stage binary ripple counter 74HC/HCT4040
FEATURES
Output capability: standard ICC category: MSI
GENERAL DESCRIPTION

The 74HC/HCT4040 are high-speed Si-gate CMOS
devices and are pin compatible with “4040” of the “4000B”
series. They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT4040 are 12-stage binary ripple counters
with a clock input (CP), an overriding asynchronous
master reset input (MR) and twelve parallel outputs
(Q0 to Q11). The counter advances on the HIGH-to-LOW
transition of CP.
A HIGH on MR clears all counter stages and forces all
outputs LOW, independent of the state of CP.
Each counter stage is a static toggle flip-flop.
APPLICATIONS
Frequency dividing circuits Time delay circuits Control counters
QUICK REFERENCE DATA

GND= 0 V; Tamb =25 °C; tr =tf= 6 ns
Notes
CPD is used to determine the dynamic power dissipation (PD in μW): =CPD× VCC2×fi +∑ (CL× VCC2× fo) where:= input frequency in MHz= output frequency in MHz
∑ (CL× VCC2×fo)= sum of outputs= output load capacitance in pF
VCC= supply voltage in V For HC the condition is VI= GND to VCC
For HCT the condition is VI= GND to VCC− 1.5 V
ORDERING INFORMATION

See “74HC/HCT/HCU/HCMOS Logic Package Information”.
Philips Semiconductors Product specification
12-stage binary ripple counter 74HC/HCT4040
PIN DESCRIPTION
Philips Semiconductors Product specification
12-stage binary ripple counter 74HC/HCT4040
FUNCTION TABLE
Notes
H= HIGH voltage level= LOW voltage level= don’t care= LOW-to-HIGH clock
transition= HIGH-to-LOW clock
transition
Philips Semiconductors Product specification
12-stage binary ripple counter 74HC/HCT4040
DC CHARACTERISTICS FOR 74HC

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
AC CHARACTERISTICS FOR 74HC

GND= 0 V; tr =tf= 6 ns; CL= 50 pF
Philips Semiconductors Product specification
12-stage binary ripple counter 74HC/HCT4040
DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
Note to HCT types

The value of additional quiescent supply current (ΔICC) for a unit load of 1 is given in the family specifications.
To determine ΔICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT

GND= 0 V; tr =tf= 6 ns; CL= 50 pF
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