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| Part Number | SN74HC688DWR | SN74HC688PWR | SN74HC682DWR | SN74HC684DWR | SN74HC688DBR | SN74HC688DW |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active | Obsolete | Active | Active |
| Type | Identity Comparator | Identity Comparator | Magnitude Comparator | Magnitude Comparator | Identity Comparator | Identity Comparator |
| Number of Bits | 8 | 8 | 8 | 8 | 8 | 8 |
| Output | Active Low | Active Low | Active Low | Active Low | Active Low | Active Low |
| Output Function | A=B | A=B | A=B, A>B | A=B, A>B | A=B | A=B |
| Voltage - Supply | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V |
| Current - Output High, Low | 5.2mA, 5.2mA | 5.2mA, 5.2mA | 5.2mA, 5.2mA | 5.2mA, 5.2mA | 5.2mA, 5.2mA | 5.2mA, 5.2mA |
| Max Propagation Delay @ V, Max CL | 36ns @ 6V, 50pF | 36ns @ 6V, 50pF | 47ns @ 6V, 50pF | 47ns @ 6V, 50pF | 36ns @ 6V, 50pF | 36ns @ 6V, 50pF |
| Current - Quiescent (Iq) | 8 µA | 8 µA | - | - | 8 µA | 8 µA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-SSOP (0.209", 5.30mm Width) | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC | 20-TSSOP | 20-SOIC | 20-SOIC | 20-SSOP | 20-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
