| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| IDT54FCT521CTLB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | LCC | 20 | -55°C | 125°C | IDT54FCT521CTLB datasheet (100K) |
| IDT54FCT521CTP | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SSOP | 20 | -55°C | 125°C | IDT54FCT521CTP datasheet (100K) |
| IDT54FCT521CTPB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SSOP | 20 | -55°C | 125°C | IDT54FCT521CTPB datasheet (100K) |
| IDT54FCT521CTQ | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | QSOP | 20 | -55°C | 125°C | IDT54FCT521CTQ datasheet (100K) |
| IDT54FCT521CTQB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | QSOP | 20 | -55°C | 125°C | IDT54FCT521CTQB datasheet (100K) |
| IDT54FCT521CTSO | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SOIC | 20 | -55°C | 125°C | IDT54FCT521CTSO datasheet (100K) |
| IDT54FCT521CTSOB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | SOIC | 20 | -55°C | 125°C | IDT54FCT521CTSOB datasheet (100K) |
| IDT54FCT521D | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERDIP | 20 | -55°C | 125°C | IDT54FCT521D datasheet (102K) |
| IDT54FCT521DB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERDIP | 20 | -55°C | 125°C | IDT54FCT521DB datasheet (102K) |
| IDT54FCT521DB | Fast CMOS 8-bit identity comparator | Integrated Device Technology, Inc. | CERDIP | 20 | -55°C | 125°C | IDT54FCT521DB datasheet (102K) |
