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HEF4518BP Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
HEF4518BPPHI171Yes

HEF4518BP** is a dual BCD up-counter integrated circuit (IC) manufactured by **NXP Semiconductors (formerly Philips)**.

The HEF4518BP is a dual BCD up-counter integrated circuit (IC) manufactured by NXP Semiconductors (formerly Philips).

Key Specifications:

  • Function: Dual BCD Up-Counter
  • Logic Family: HEF4000 (CMOS)
  • Supply Voltage Range: 3V to 15V
  • Operating Temperature Range: -40°C to +85°C
  • Package: DIP-16 (Dual In-line Package, 16 pins)
  • Propagation Delay: Typically 200ns at 5V
  • Maximum Clock Frequency: ~8MHz at 15V

Descriptions:

  • Contains two independent synchronous 4-bit BCD counters.
  • Each counter has a clock input (CP), enable input (EN), reset input (MR), and four output pins (Q0-Q3).
  • Can be cascaded for higher counting ranges.

Features:

  • Low Power Consumption: CMOS technology ensures low static power dissipation.
  • Wide Voltage Range: Operates from 3V to 15V, making it versatile for different logic levels.
  • Synchronous Counting: Counts on the rising or falling edge of the clock signal (depending on configuration).
  • Reset Capability: Master Reset (MR) clears the counter outputs to zero.
  • Buffered Outputs: Provides better noise immunity and drive capability.

This IC is commonly used in digital counting applications, frequency dividers, and timing circuits.

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