The HEF4518B is a dual 4-bit internally synchronous BCD counter. The counter has two clock inputs (CP0 and CP1 ), buffered outputs from all four bit positions (O0 to O3) and an asynchronous master reset input (MR). The counter advances on either the LOW to HIGH transition of the CP0 input if CP1 is HIGH or the HIGH to LOW transition of the CP1 input if CP0 is LOW. Either CP0 or CP1 may be used as the clock input to the counter and the other clock input may be used as a clock enable input. A HIGH on MR resets the counter (O0 to O3 = LOW) independent of CP0 and CP1. Schmitt-trigger action in the clock inputs makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VDD.
Features and benefits
Applications
Counter IC BCD Counter 2 Element 4 Bit Positive, Negative 16-SO
Counter IC BCD Counter 2 Element 4 Bit Positive, Negative 16-SO
Counter IC BCD Counter 2 Element 4 Bit Positive, Negative 16-SO
Manufacturer: Nexperia USA Inc.
Win Source Part Number: 1043138-HEF4518BT,65
Packaging: Reel - TR
Mounting: SMD (SMT)
Logic Type: BCD Counter
Number of Elements: 2
Number of Bits per Element: 4
Trigger Type: Positive, Negative
Direction: Up
Reset: Asynchronous
Count Rate: 40MHz
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C
Case / Package: 16-SO
Supply Voltage - Operating: 4.5 V to 15.5 V
Popularity: Medium
Fake Threat In the Open Market: 61 pct.
Supply and Demand Status: Balance
IC BCD COUNTER DUAL 16SOIC
IC BCD COUNTER DUAL 16SOIC
IC BCD COUNTER DUAL 4-BIT 16SO
Counter IC BCD Counter 2 Element 4 Bit Positive, Negative 16-SO
| Nexperia B.V. | DigiKey | Win Source Electronics | ODG (Origin Data Global) | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|
| Product Category | Logic Counters | Logic Counters | Logic Counters | Logic Counters | Logic Counters | Logic Counters | Logic Counters |
| Product Number | HEF4518BT,653 | 1727-8441-1-ND | 1043138-HEF4518BT,653 | HEF4518BT,653 | HEF4518BT,653 | HEF4518BT,653 | HEF4518BT,653 |
| Product Name | Dual BCD counter | Counters, Dividers | Logic - Logic - Counters, Dividers - HEF4518BT,653 | Counters, Dividers | Logic - Counters, Dividers | Integrated Circuits (ICs) - Logic - Counters, Dividers | Counters, Dividers |
| Features | ESD Protection | ||||||
| Counter Type | BCD/Decade Counter | BCD/Decade Counter | BCD/Decade Counter | ||||
| Counter Category | Synchronous; Asynchronous | Asynchronous | Synchronous; Synchronous / Asynchronous | ||||
| Package Type | SOT109-1 SOT109-1 | SOIC; "16-SOIC (0.154"", 3.90mm Width)" | 16-SO | SOIC; 16-SOIC (0.154", 3.90mm Width) | SOIC | SOIC; 16-SOIC (0.154\", 3.90mm Width) |
