INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC06 74HC/HCT/HCU/HCMOS Logic Fami...
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/H
CMOS Logic Family Specifications The IC06 74HC/HCT/HCU/H
CMOS Logic Package Information The IC06 74HC/HCT/HCU/H
CMOS Logic Package Outlines
74HC/HCT40103 8-bit synchronous binary down counter
Product specification Supersedes data of December 1990 File under Integrated Circuits, IC06
1998 Jul 08
Philips Semiconductors
8-bit synchronous binary down counter
Product specification
74HC/HCT40103
FEATURES
Cascadable Synchronous or asynchronous preset Output capability: standard ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT40103 are high-speed Si-gate
CMOS devices and are pin compatible with the “40103” of the “4000B” series. They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT40103 consist each of an 8-bit synchronous down counter with a single output which is active when the internal count is zero. The “40103” contains a single 8-bit binary counter and has control inputs for enabling or disabling the clock (CP), for clearing the counter to its maximum count, and for presetting the counter either synchronously or asynchronously. All control inputs and the terminal count output (TC) are active-LOW logic.
In normal operation, the counter is decremented by one count on each positive-going transition of the clock (CP).
Counting is inhibited when the terminal enable input (TE) is HIGH. The terminal count output (TC) goes LOW when the count reac...