Overview
The CD4098BEX, produced by Harris Corporation, is a dual monostable multivibrator integrated circuit. This component is designed to provide stable, retriggerable/resettable one-shot operation for various fixed-voltage timing applications. It is part of the 4000/14000/40000 logic IC family and is known for its versatility in timing and pulse generation tasks.
Key Specifications
| Parameter | Value |
|---|---|
| Logic IC Type | MONOSTABLE MULTIVIBRATOR |
| Sub Category | Prescaler/Multivibrators |
| Family | 4000/14000/40000 |
| Package Type | 16-lead PDIP, Ceramic, Plastic, SOIC, TSSOP |
| Operating Temperature Range (°C) | -55 to 125 |
| Trigger and Reset Propagation Delays | Independent of RX and CX |
| Minimum External Resistance (RX) | 5 kΩ |
| Maximum External Capacitance (CX) | 100 μF |
| Noise Margin at VDD=5V | 1 V |
| Noise Margin at VDD=10V/15V | 2 V / 2.5 V |
Key Features
- Retriggerable/resettable capability
- Trigger and reset propagation delays independent of RX and CX
- Triggering from leading or trailing edge
- Q and Q̄ buffered outputs available
- Separate resets
- Wide range of output-pulse widths
- 100% tested for maximum quiescent current at 20 V
- Maximum input current of 1 μA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
- Standardized, symmetrical output characteristics
Applications
- Pulse delay and timing
- Pulse shaping
- Astable multivibrator
Q & A
- What is the CD4098BEX used for?
The CD4098BEX is used for pulse delay and timing, pulse shaping, and as an astable multivibrator in various electronic circuits. - What are the key features of the CD4098BEX?
Key features include retriggerable/resettable capability, independent trigger and reset propagation delays, and the ability to trigger from leading or trailing edges. - What are the operating temperature ranges for the CD4098BEX?
The operating temperature range is -55°C to 125°C. - What are the minimum and maximum values for external resistance and capacitance?
The minimum external resistance (RX) is 5 kΩ, and the maximum external capacitance (CX) is 100 μF. - How does the noise margin vary with VDD?
The noise margin varies as follows: 1 V at VDD=5V, 2 V at VDD=10V, and 2.5 V at VDD=15V. - What types of packages are available for the CD4098BEX?
The CD4098BEX is available in 16-lead PDIP, ceramic, plastic, SOIC, and TSSOP packages. - How is the output pulse width affected by temperature and power supply variations?
The output pulse width has variations of ±2.5% typically over the temperature range and ±0.5% to ±1% for power supply variations depending on VDD. - Can the CD4098BEX be used in non-retriggerable mode?
Yes, it can be used in non-retriggerable mode by connecting Q̄ to -TR for leading-edge triggering or Q to +TR for trailing-edge triggering. - What is the formula to approximate the time period (T) for this multivibrator?
The time period (T) can be approximated by TX= ½ RXCX for CX ≥ 0.01 μF. - Is the CD4098BEX compliant with any specific standards?
Yes, it meets all requirements of JEDEC Tentative Standard No. 13B for 'B' Series CMOS Devices.
