| Part Numbers | Manufacturer Name | Datasheet | Number of Bits | Output | Output Function | Voltage - Supply | Current - Output High, Low | Max Propagation Delay @ V, Max CL | Current - Quiescent | Operating Temperature | Mounting Type | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SN74F521N | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Through Hole | 20-DIP (0.300", 7.62mm) | |
| SN74F521DWR | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | |
| SN74F521DW | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | |
| SN74F521DWRE4 | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | |
| SN74F521NSR | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.209", 5.30mm Width) | |
| SN74F521NSRE4 | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.209", 5.30mm Width) | |
| SN74F521DWRG4 | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | |
| SN74F521NSRG4 | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.209", 5.30mm Width) | |
| SN74F521DWE4 | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | |
| SN74F521DWG4 | TEXAS INSTRUMENTS INC | 8 | Active Low | A=B | 4.5 V ~ 5.5 V | 1mA, 20mA | 10ns @ 5V, 50pF | - | 0?C ~ 70?C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) |
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