74221 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

比赛名单

74221

Dual Monostable Multivibrators (with Schmitt Trigger Input)

Philips Electronics 

Philips Semiconductors

Dual non-retriggerable monostable

multivibrator with reset

Product specification

74HC/HCT221

Fig.5 Logic diagram.

Note

It is recommended to ground pins 6 (2CEXT) and 14 (1CEXT) externally to pin 8 (GND).

December 1990

Fig.6 Timing component connections.

5

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