| Manufacturer | Part Number | Description |
|---|---|---|
National Semiconductor (now Texas Instruments)
| 54F521 | 8-Bit Identity Comparator |
Texas Instruments
| 54F521 | 8-Bit Identity Comparators |
|
Texas Instruments
| SN54F521 | 8-Bit Identity Comparators |
|
Texas Instruments
| SN54F521J | 8-Bit Identity Comparators |
Motorola Semiconductor (now NXP Semiconductors)
| MC54F521 | 8-BIT IDENTITY COMPARATOR |
