The MM54HC123AJ/883Q from Texas Instruments is a high-performance, dual retriggerable monostable multivibrator.

• Description: Dual Retriggerable Monostable Multivibrator
• Technology: High-speed CMOS technology
• Outputs: Two independent monostable multivibrators, each with its own direct clear and complementary outputs
• Triggering: Triggered by a positive or a negative edge pulse, or by a high-level signal
• Mode: Retriggerable mode
• Supply Voltage Range: 2V to 6V
• Noise Immunity: High noise immunity
• Temperature Stability: Excellent
• Operating Temperature Range: -55°C to 125°C
• Package: 16-pin ceramic dual-in-line package
• Compliance: Lead-free and RoHS compliant