| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| IDT54FCT521ATP | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SSOP | 20 | -55°C | 125°C | IDT54FCT521ATP datasheet (100K) |
| IDT54FCT521ATPB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SSOP | 20 | -55°C | 125°C | IDT54FCT521ATPB datasheet (100K) |
| IDT54FCT521ATQ | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | QSOP | 20 | -55°C | 125°C | IDT54FCT521ATQ datasheet (100K) |
| IDT54FCT521ATQB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | QSOP | 20 | -55°C | 125°C | IDT54FCT521ATQB datasheet (100K) |
| IDT54FCT521ATSO | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SOIC | 20 | -55°C | 125°C | IDT54FCT521ATSO datasheet (100K) |
| IDT54FCT521ATSOB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SOIC | 20 | -55°C | 125°C | IDT54FCT521ATSOB datasheet (100K) |
| IDT54FCT521BD | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERDIP | 20 | -55°C | 125°C | IDT54FCT521BD datasheet (102K) |
| IDT54FCT521BE | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERPACK | 20 | -55°C | 125°C | IDT54FCT521BE datasheet (102K) |
| IDT54FCT521BEB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERPACK | 20 | -55°C | 125°C | IDT54FCT521BEB datasheet (102K) |
| IDT54FCT521BL | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | LCC | 20 | -55°C | 125°C | IDT54FCT521BL datasheet (102K) |
