This part is a kind of semiconductor called 74HC21.

Function of this product has Dual 4-input AND gate.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT21 Dual 4-input AND gate Product specification File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specification Dual 4-input AND gate FEATURES • Output capability: standard • ICC category: SSI GENERAL DESCRIPTION 74HC/HCT21 The 74HC/HCT21 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT21 provide the 4-input AND function. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr [ ... ]

74HC21 PDF Datasheet Download