Description:
The CD4518 is a versatile 4-stage synchronous counter IC belonging to the CD4x Series, featuring two identical counters. Each counter is implemented using D-type flip-flops and offers interchangeable CLOCK and ENABLE inputs, allowing the counter to increment on both positive-going or negative-going clock transitions. This flexibility makes it ideal for various counting applications, including multistage counting and frequency division. The counters can be reset via the RESET inputs, and for cascading in ripple mode, the Q4 output of the first counter is connected to the ENABLE input of the next counter.
This device is available in several 16-lead package options, making it adaptable to different design requirements.
Key Features:
Dual 4-Stage Synchronous Counters for efficient counting operations
Interchangeable CLOCK and ENABLE Inputs for flexible clock transitions
Resettable Counters through high-level RESET input
Ripple Mode Cascading for multistage counting applications
Wide Operating Voltage Range (3 V to 18 V)
High-Speed Performance: Maximum frequency of 8 MHz at nominal voltage
Low Quiescent Current: ICC = 0.03 mA (Max)
Temperature Range: Operates from -55°C to 125°C
Applications:
Multistage Synchronous Counting
Multistage Ripple Counting
Frequency Dividers
For similar functionality, check out the CD4059 – Programmable Divide-by-N Counter IC.
Specifications:
Part Number: CD4518B
Technology Family: CD4000
VCC (Minimum): 3 V
VCC (Maximum): 18 V
Number of Bits: 4
Nominal Operating Voltages: 5 V, 10 V, 15 V
Maximum Frequency @ Nominal Voltage: 8 MHz
Maximum Supply Current (ICC): 0.03 mA
Maximum Propagation Delay (tpd): 230 ns
Maximum Low-Level Output Current (IOL): 1.5 mA
Maximum High-Level Output Current (IOH): -1.5 mA
Function: Counter
Type: Other
Operating Temperature Range: -55°C to 125°C
Disclaimer:
Product specifications, features, and design may change over time due to product updates or improvements.
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