| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| N74F521D | 8-bit identity comparator | Philips-Semiconductors | SOT163 | - | - | - | 79 K |
| N74F521N | 8-bit identity comparator | Philips-Semiconductors | SOT146 | - | - | - | 79 K |
| SN74F521DW | OCTAL BINARY AND BCD IDENTITY COMPARATORS WITH ENABLE | Texas-Instruments | DW | 20 | 0°C | 70°C | 73 K |
| SN74F521DWR | OCTAL BINARY AND BCD IDENTITY COMPARATORS WITH ENABLE | Texas-Instruments | DW | 20 | 0°C | 70°C | 73 K |
| SN74F521N | OCTAL BINARY AND BCD IDENTITY COMPARATORS WITH ENABLE | Texas-Instruments | N | 20 | 0°C | 70°C | 73 K |
| SN74F521N | OCTAL BINARY AND BCD IDENTITY COMPARATORS WITH ENABLE | Texas-Instruments | N | 20 | 0°C | 70°C | 73 K |
| SN74F521N | OCTAL BINARY AND BCD IDENTITY COMPARATORS WITH ENABLE | Texas-Instruments | N | 20 | 0°C | 70°C | 73 K |
| SN74F521N3 | OCTAL BINARY AND BCD IDENTITY COMPARATORS WITH ENABLE | Texas-Instruments | N | 20 | 0°C | 70°C | 73 K |
| SN74F521N3 | OCTAL BINARY AND BCD IDENTITY COMPARATORS WITH ENABLE | Texas-Instruments | N | 20 | 0°C | 70°C | 73 K |
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