LS SERIES, 8-BIT ERROR DETECT AND CORRECT CKT, CQCC20
| Parameter Name | Attribute value |
| Is it lead-free? | Contains lead |
| Is it Rohs certified? | incompatible |
| Maker | Rochester Electronics |
| package instruction | QCCN, |
| Reach Compliance Code | unknown |
| series | LS |
| JESD-30 code | S-CQCC-N20 |
| JESD-609 code | e0 |
| length | 8.89 mm |
| Logic integrated circuit type | ERROR DETECTION AND CORRECTION CIRCUIT |
| Number of digits | 8 |
| Number of functions | 1 |
| Number of terminals | 20 |
| Maximum operating temperature | 125 °C |
| Minimum operating temperature | -55 °C |
| Output characteristics | OPEN-COLLECTOR |
| Package body material | CERAMIC, METAL-SEALED COFIRED |
| encapsulated code | QCCN |
| Package shape | SQUARE |
| Package form | CHIP CARRIER |
| Peak Reflow Temperature (Celsius) | NOT SPECIFIED |
| Certification status | COMMERCIAL |
| Maximum seat height | 2.03 mm |
| Maximum supply voltage (Vsup) | 5.5 V |
| Minimum supply voltage (Vsup) | 4.5 V |
| Nominal supply voltage (Vsup) | 5 V |
| surface mount | YES |
| technology | TTL |
| Temperature level | MILITARY |
| Terminal surface | TIN LEAD |
| Terminal form | NO LEAD |
| Terminal pitch | 1.27 mm |
| Terminal location | QUAD |
| Maximum time at peak reflow temperature | NOT SPECIFIED |
| width | 8.89 mm |

| SNJ54LS637FK | SN74LS637DW | SN54LS637FK | SN74LS637N | SN54LS637J | SNJ54LS637J | |
|---|---|---|---|---|---|---|
| Description | LS SERIES, 8-BIT ERROR DETECT AND CORRECT CKT, CQCC20 | LS SERIES, 8-BIT ERROR DETECT AND CORRECT CKT, PDSO20 | LS SERIES, 8-BIT ERROR DETECT AND CORRECT CKT, CQCC20 | LS SERIES, 8-BIT ERROR DETECT AND CORRECT CKT, PDIP20 | LS SERIES, 8-BIT ERROR DETECT AND CORRECT CKT, CDIP20 | LS SERIES, 8-BIT ERROR DETECT AND CORRECT CKT, CDIP20 |
| Is it lead-free? | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead |
| Maker | Rochester Electronics | Rochester Electronics | Rochester Electronics | Rochester Electronics | Rochester Electronics | Rochester Electronics |
| Reach Compliance Code | unknown | unknown | unknown | unknown | unknown | unknown |
| series | LS | LS | LS | LS | LS | LS |
| JESD-30 code | S-CQCC-N20 | R-PDSO-G20 | S-CQCC-N20 | R-PDIP-T20 | R-CDIP-T20 | R-CDIP-T20 |
| JESD-609 code | e0 | e0 | e0 | e0 | e0 | e0 |
| length | 8.89 mm | 12.8 mm | 8.89 mm | 24.325 mm | 24.195 mm | 24.195 mm |
| Logic integrated circuit type | ERROR DETECTION AND CORRECTION CIRCUIT | ERROR DETECTION AND CORRECTION CIRCUIT | ERROR DETECTION AND CORRECTION CIRCUIT | ERROR DETECTION AND CORRECTION CIRCUIT | ERROR DETECTION AND CORRECTION CIRCUIT | ERROR DETECTION AND CORRECTION CIRCUIT |
| Number of digits | 8 | 8 | 8 | 8 | 8 | 8 |
| Number of functions | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of terminals | 20 | 20 | 20 | 20 | 20 | 20 |
| Maximum operating temperature | 125 °C | 70 °C | 125 °C | 70 °C | 125 °C | 125 °C |
| Minimum operating temperature | -55 °C | - | -55 °C | - | -55 °C | -55 °C |
| Output characteristics | OPEN-COLLECTOR | OPEN-COLLECTOR | OPEN-COLLECTOR | OPEN-COLLECTOR | OPEN-COLLECTOR | OPEN-COLLECTOR |
| Package body material | CERAMIC, METAL-SEALED COFIRED | PLASTIC/EPOXY | CERAMIC, METAL-SEALED COFIRED | PLASTIC/EPOXY | CERAMIC, METAL-SEALED COFIRED | CERAMIC, METAL-SEALED COFIRED |
| encapsulated code | QCCN | SOP | QCCN | DIP | DIP | DIP |
| Package shape | SQUARE | RECTANGULAR | SQUARE | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package form | CHIP CARRIER | SMALL OUTLINE | CHIP CARRIER | IN-LINE | IN-LINE | IN-LINE |
| Peak Reflow Temperature (Celsius) | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED |
| Certification status | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL |
| Maximum seat height | 2.03 mm | 2.65 mm | 2.03 mm | 5.08 mm | 5.08 mm | 5.08 mm |
| Maximum supply voltage (Vsup) | 5.5 V | 5.25 V | 5.5 V | 5.25 V | 5.5 V | 5.5 V |
| Minimum supply voltage (Vsup) | 4.5 V | 4.75 V | 4.5 V | 4.75 V | 4.5 V | 4.5 V |
| Nominal supply voltage (Vsup) | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| surface mount | YES | YES | YES | NO | NO | NO |
| technology | TTL | TTL | TTL | TTL | TTL | TTL |
| Temperature level | MILITARY | COMMERCIAL | MILITARY | COMMERCIAL | MILITARY | MILITARY |
| Terminal surface | TIN LEAD | TIN LEAD | TIN LEAD | TIN LEAD | TIN LEAD | TIN LEAD |
| Terminal form | NO LEAD | GULL WING | NO LEAD | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE |
| Terminal pitch | 1.27 mm | 1.27 mm | 1.27 mm | 2.54 mm | 2.54 mm | 2.54 mm |
| Terminal location | QUAD | DUAL | QUAD | DUAL | DUAL | DUAL |
| Maximum time at peak reflow temperature | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED |
| width | 8.89 mm | 7.5 mm | 8.89 mm | 7.62 mm | 7.62 mm | 7.62 mm |
| Is it Rohs certified? | incompatible | incompatible | incompatible | - | incompatible | incompatible |
| package instruction | QCCN, | SOP, | QCCN, | - | DIP, | DIP, |