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功能应用： 双4输入端与门 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.
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发布时间:2009-04-22 16:55:29 来源: 录入:
功能应用： 双4输入端与门 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.
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