CD74HC40103-Q1 Datasheet – CMOS Synchronous Down Counter

Part Number: CD74HC40103-Q1


Package: DIP, SOP 16 Pin Type

Manufacturer: Texas Instruments


CD74HC40103-Q1 datasheet



The CD74HC40103 is manufactured with high-speed silicon-gate technology and consists of an 8-stage synchronous down counter with a single output, which is active when the internal count is zero. The device contains a single 8-bit binary counter. Each device has control inputs for enabling or disabling the clock, for clearing the counter to its maximum count, and for presetting the counter either synchronously or asynchronously. All control inputs and the terminal count (TC) output are active-low logic. In normal operation, the counter is decremented by one count on each positive transition of the clock (CP) output. Counting is inhibited when the terminal enable (TE) input is high. TCgoes low when the count reaches zero, if TEis low, and remains low for one full clock period.


1. Qualified for Automotive Applications
2. Synchronous or Asynchronous Preset
3. Cascadable in Synchronous or Ripple Mode
4. Fanout (Over Temperature Range)
− Standard Outputs … 10 LSTTL Loads
− Bus Driver Outputs … 15 LSTTL Loads
5. Balanced Propagation Delay and Transition Times
6. Significant Power Reduction Compared to LSTTL Logic ICs
7. VCC Voltage = 2 V to 6 V
8. High Noise Immunity NILor NIH= 30% of VCC, VCC= 5 V

Other data sheets are available within the file:

CD74HC40103QM96Q1, HC40103QM96G4Q1


CD74HC40103-Q1 Datasheet PDF Download

CD74HC40103-Q1 pdf