CD4047BF3A

Overview

The CD4047BF3A is a CMOS low-power monostable/astable multivibrator from the CD4047B-Series. It operates within a supply voltage range of 3 V to 18 V and supports an operating temperature range of -55°C to +125°C. The device features propagation delays of 1000 ns, 450 ns, and 300 ns, with maximum power supply current of 20 uA. Output drive capabilities include a low-level output current of 4.2 mA and a high-level output current of -4.2 mA. It is housed in a 14-lead hermetic dual-in-line ceramic package (CDIP) with military qualification.

Feature Summary

• Provides selectable astable or monostable multivibrator operation modes
• Features positive/negative edge-triggered inputs for monostable mode
• Includes retriggering capability and external counter extension options
• Offers buffered Q, Q-bar, and half-frequency outputs

Applications

• Military and defense electronic systems
• Precision timing circuits requiring wide temperature stability
• Frequency division and waveform generation applications
• Pulse width modulation signal processing

Procurement Notes

Verify that the component carries the F3A suffix indicating a 14-lead hermetic ceramic dual-in-line package. Confirm the part is designated as CD4047B-MIL qualified for military and defense applications. Ensure the supplier provides traceability documentation consistent with QML certification requirements before procurement.

Selection Notes

Select this component when hermetic sealing and extended temperature performance are required. The CD4047BF3A is suitable for environments where standard plastic packages may fail due to moisture or thermal stress. Verify that the design accommodates the specific pinout and physical dimensions of the CDIP package.

Part Context

This part belongs to the CD4047B-Series of CMOS logic devices manufactured by Texas Instruments. It is specifically designated under the CD4047B-MIL variant, which indicates it meets military quality standards. The series includes various packaging options such as plastic DIP and small-outline packages, but the F3A suffix uniquely identifies the hermetic ceramic construction.

Replacement Considerations

Direct substitutes include other CD4047BF3A units or equivalent military-qualified parts from authorized distributors. Catalog versions like CD4047BE offer similar functionality but lack hermetic sealing and military certification.