DM74S20 数据手册 ( 数据表 ) - Fairchild Semiconductor
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Fairchild Semiconductor
General Description
This device contains two independent gates each of which performs the logic NAND function.
Dual 4-input NAND gate
NXP Semiconductors.
Dual 4-input NAND gate
NXP Semiconductors.
Dual 4-input NAND gate
Philips Electronics
Dual 4-input NAND gate
NXP Semiconductors.
Dual 4-Input NAND Gate
Fairchild Semiconductor
Dual 4-Input NAND Gate
Motorola => Freescale
DUAL 4-INPUT NAND GATE
STMicroelectronics
DUAL 4-INPUT NAND GATE
Motorola => Freescale
DUAL 4-INPUT NAND GATE
STMicroelectronics
Dual 4-input NAND gate
Philips Electronics