| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| IDT54FCT521ALB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | LCC | 20 | -55°C | 125°C | IDT54FCT521ALB datasheet (102K) |
| IDT54FCT521APB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | DIP | 20 | -55°C | 125°C | IDT54FCT521APB datasheet (102K) |
| IDT54FCT521ASO | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SOIC | 20 | -55°C | 125°C | IDT54FCT521ASO datasheet (102K) |
| IDT54FCT521ASOB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SOIC | 20 | -55°C | 125°C | IDT54FCT521ASOB datasheet (102K) |
| IDT54FCT521ATD | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERDIP | 20 | -55°C | 125°C | IDT54FCT521ATD datasheet (100K) |
| IDT54FCT521ATDB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERDIP | 20 | -55°C | 125°C | IDT54FCT521ATDB datasheet (100K) |
| IDT54FCT521ATE | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERPACK | 20 | -55°C | 125°C | IDT54FCT521ATE datasheet (100K) |
| IDT54FCT521ATEB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERPACK | 20 | -55°C | 125°C | IDT54FCT521ATEB datasheet (100K) |
| IDT54FCT521ATL | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | LCC | 20 | -55°C | 125°C | IDT54FCT521ATL datasheet (100K) |
| IDT54FCT521ATLB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | LCC | 20 | -55°C | 125°C | IDT54FCT521ATLB datasheet (100K) |
