Dual Retriggerable Monostable Multivibrator with Reset
price for: 1set (2pcs)
full name: PC74HCT423D
case: SO16
More technical info available here:http://standby-shop.eu/product/attachment/c9dfffae5d76b85b534f8f890510d8e7/en_US/74hct423-philips.pdf