 | HEF4000B | Dual 3-Input NOR Gate and Inverter |
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 | HEF4001B | Quad 2-Input NOR Gate |
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 | HEF4001B-Q100 | Quad 2-Input NOR Gate; AEC Q100 (Grade 1) qualified  |
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 | HEF4002B | Dual 4-Input NOR Gate |
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 | HEF4011B | Quad 2-Input NAND Gate |
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 | HEF4011UB | Quad 2-Input NAND Gate (Unbuffered) |
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 | HEF4023B | Triple 3-Input NAND Gate |
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 | HEF4025B | Triple 3-Input NOR Gate |
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 | HEF4030B | Quad EXCLUSIVE-OR Gate |
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 | HEF4068B | 8-Input NAND Gate |
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 | HEF4070B | Quad EXCLUSIVE-OR Gate |
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 | HEF4071B | Quad 2-Input OR Gate |
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 | HEF4072B | Dual 4-Input OR Gate |
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 | HEF4073B | Triple 3-Input AND Gate |
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 | HEF4075B | Triple 3-Input OR Gate |
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 | HEF4077B | Quad EXCLUSIVE-NOR Gate |
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 | HEF4081B | Quad 2-input AND gate |
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 | HEF4082B | Dual 4-Input AND Gate |
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