CD74HCT4040 High Speed CMOS Logic 12-Stage Binary Counter |

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
High Speed CMOS Logic 12-Stage Binary Counter



The ’HC4040 and ’HCT4040 are 14-stage ripple-carry binary counters. All counter stages are master-slave flip-flops. The state of the stage advances one count on the negative clock transition of each input pulse; a high voltage level on the MR line resets all counters to their zero state. All inputs and outputs are buffered.


  • Fully Static Operation
  • Buffered Inputs
  • Common Reset
  • Negative Edge Pulsing
  • Fanout (Over Temperature Range)
    - Standard Outputs...10 LSTTL Loads
    - Bus Driver Outputs...15 LSTTL Loads
  • Wide Operating Temperature Range... -55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    - 2V to 6V Operation
    - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    - 4.5V to 5.5V Operation
    - Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    - CMOS Input Compatibility, Il 1µA at VOL, VOH


Compare all products in Counter/arithmetic/parity function Email Download to Excel
Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Function Type Rating Operating temperature range (C) Package Group
CD74HCT4040 Order now HCT     4.5     5.5     12     5     25     0.08     50     4     -4     Counter     Binary     Catalog     -55 to 125     PDIP | 16
SOIC | 16    
CD54HCT4040 Samples not available HCT     4.5     5.5     12     5     25     0.08     50     4     -4     Counter     Binary     Military     -55 to 125     CDIP | 16