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74HC390 Dual 4-bit Decade Ripple Counter IC (74390 IC) DIP-16 Package

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25 In stock


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35.00 (excluding 18% GST)

25 In stock

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Description

The 74HC390 consists of two 4-bit counters:

  1. Counter A: A 2-bit divide-by-2 counter.
  2. Counter B: A 3-bit divide-by-5 counter.

These two sections can be cascaded to create a divide-by-10 counter, useful for counting decimal numbers (0-9). Each counter has a separate clock input and is triggered on the rising edge of the clock signal. The outputs from each counter are used to feed into subsequent stages or as standalone outputs.

Features

  • Dual 4-bit counters: Provides both a divide-by-2 and a divide-by-5 counter in a single IC.
  • Separate Clock Inputs: Independent clock inputs for both the divide-by-2 and divide-by-5 sections.
  • Cascadable Design: Can be cascaded to form a divide-by-10 counter or higher divisions.
  • High-Speed Operation: Capable of operating at high clock frequencies.
  • Low Power Consumption: CMOS technology ensures minimal power usage.
  • Wide Operating Voltage Range: Suitable for operation between 2V and 6V.
  • Asynchronous Reset: Each section can be asynchronously reset to zero.

Specifications

  • Package: DIP-16
  • Supply Voltage (Vcc): 2V to 6V
  • Input Voltage (Vin): 0V to Vcc
  • Output Voltage (Vout): 0V to Vcc
  • Propagation Delay (tpd): Typically 15 ns (depends on supply voltage and load capacitance)
  • Input Capacitance (Cin): Typical value is 3 pF
  • Output Drive Current:
    • High-Level Output Current (IOH): -6 mA
    • Low-Level Output Current (IOL): 6 mA
  • Logic Levels:
    • Input Low Voltage (VIL): ≤ 0.3 x Vcc
    • Input High Voltage (VIH): ≥ 0.7 x Vcc
    • Output Low Voltage (VOL): ≤ 0.1 x Vcc (at IOL = 6 mA)
    • Output High Voltage (VOH): ≥ 0.9 x Vcc (at IOH = -6 mA)
  • Operating Temperature Range: -40°C to +125°C

Note

* Product Images are shown for illustrative purposes only and may differ from actual product

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