74HC40103集成电路（IC）的计数器除法器规格书PDF中文资料

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.

FEATURES

• Cascadable

• Synchronous or asynchronous preset

• Output capability: standard

• ICC category: MSI