74HC390 Datasheet and Specifications PDF

The 74HC/HCT390 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT390 are dual 4-.

* Two BCD decade or bi-quinary counters
* One package can be configured to divide-by-2, 4, 5, 10, 20, 25, 50 or 100
* Two master reset inputs to clear each decade counter individually
* Output capability: standard
* ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT390 are high-speed Si-gate CMOS de.

The 74HC390; 74HCT390 is a dual 4-bit decade ripple counter divided into four separately clocked sections. The counters have two divide-by-2 sections and two divide-by-5 sections. These sections share.

reduced input threshold levels to allow interfacing to TTL logic levels. Inputs also include clamp diodes, this enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. 2. Features and benefits
* Input levels:
* For 74HC390: CMOS level
* For 74HCT390: TTL leve.

• Two BCD Decade or Bi-Quinary Counters • One Package Can Be Configured to Divide-by-2, 4, 5,10, 20, 25, 50 or 100 • Two Master Reset Inputs to Clear Each Decade Counter Individually • Fanout (Over Te.

Description
* Two BCD Decade or Bi-Quinary Counters
* One Package Can Be Configured to Divide-by-2, 4, 5,10, 20, 25, 50 or 100
* Two Master Reset Inputs to Clear Each Decade Counter Individually
* Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus .