Bus Transceiver, LS Series, 1-Func, 4-Bit, Inverted Output, TTL, 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 |
| Other features | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION |
| series | LS |
| JESD-30 code | S-CQCC-N20 |
| JESD-609 code | e0 |
| length | 8.89 mm |
| Logic integrated circuit type | BUS TRANSCEIVER |
| Number of digits | 4 |
| Number of functions | 1 |
| Number of ports | 2 |
| Number of terminals | 20 |
| Maximum operating temperature | 125 °C |
| Minimum operating temperature | -55 °C |
| Output characteristics | 3-STATE |
| Output polarity | INVERTED |
| Package body material | CERAMIC, METAL-SEALED COFIRED |
| encapsulated code | QCCN |
| Package shape | SQUARE |
| Package form | CHIP CARRIER |
| Peak Reflow Temperature (Celsius) | NOT SPECIFIED |
| propagation delay (tpd) | 18 ns |
| Certification status | Not Qualified |
| 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 |

| SNJ54LS242FK | SN54LS242J | SN54LS242W | SN54LS242FK | SN74LS242N3 | SN54LS243FK | SN54LS243W | |
|---|---|---|---|---|---|---|---|
| Description | Bus Transceiver, LS Series, 1-Func, 4-Bit, Inverted Output, TTL, CQCC20 | Bus Transceiver, LS Series, 1-Func, 4-Bit, Inverted Output, TTL, CDIP14, CERAMIC, DIP-14 | Bus Transceiver, LS Series, 1-Func, 4-Bit, Inverted Output, TTL, CDFP14, CERAMIC, DFP-14 | Bus Transceiver, LS Series, 1-Func, 4-Bit, Inverted Output, TTL, CQCC20, CERAMIC, LCC-20 | Bus Transceiver, LS Series, 1-Func, 4-Bit, Inverted Output, TTL, PDIP14, | Bus Transceiver, LS Series, 1-Func, 4-Bit, True Output, TTL, CQCC20, CERAMIC, LCC-20 | Bus Transceiver, LS Series, 1-Func, 4-Bit, True Output, TTL, CDFP14, CERAMIC, DFP-14 |
| Is it lead-free? | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead |
| Is it Rohs certified? | incompatible | incompatible | incompatible | incompatible | incompatible | incompatible | incompatible |
| package instruction | QCCN, | DIP, | DFP, | QCCN, | DIP, | QCCN, | CERAMIC, DFP-14 |
| Reach Compliance Code | unknown | unknown | unknown | unknown | unknown | unknown | unknown |
| Other features | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION |
| series | LS | LS | LS | LS | LS | LS | LS |
| JESD-30 code | S-CQCC-N20 | R-GDIP-T14 | R-GDFP-F14 | S-CQCC-N20 | R-PDIP-T14 | S-CQCC-N20 | R-GDFP-F14 |
| JESD-609 code | e0 | e0 | e0 | e0 | e0 | e0 | e0 |
| length | 8.89 mm | 19.56 mm | 9.21 mm | 8.89 mm | 19.305 mm | 8.89 mm | 9.21 mm |
| Logic integrated circuit type | BUS TRANSCEIVER | BUS TRANSCEIVER | BUS TRANSCEIVER | BUS TRANSCEIVER | BUS TRANSCEIVER | BUS TRANSCEIVER | BUS TRANSCEIVER |
| Number of digits | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Number of functions | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of ports | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Number of terminals | 20 | 14 | 14 | 20 | 14 | 20 | 14 |
| Maximum operating temperature | 125 °C | 125 °C | 125 °C | 125 °C | 70 °C | 125 °C | 125 °C |
| Minimum operating temperature | -55 °C | -55 °C | -55 °C | -55 °C | - | -55 °C | -55 °C |
| Output characteristics | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE |
| Output polarity | INVERTED | INVERTED | INVERTED | INVERTED | INVERTED | TRUE | TRUE |
| Package body material | CERAMIC, METAL-SEALED COFIRED | CERAMIC, GLASS-SEALED | CERAMIC, GLASS-SEALED | CERAMIC, METAL-SEALED COFIRED | PLASTIC/EPOXY | CERAMIC, METAL-SEALED COFIRED | CERAMIC, GLASS-SEALED |
| encapsulated code | QCCN | DIP | DFP | QCCN | DIP | QCCN | DFP |
| Package shape | SQUARE | RECTANGULAR | RECTANGULAR | SQUARE | RECTANGULAR | SQUARE | RECTANGULAR |
| Package form | CHIP CARRIER | IN-LINE | FLATPACK | CHIP CARRIER | IN-LINE | CHIP CARRIER | FLATPACK |
| Peak Reflow Temperature (Celsius) | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED |
| propagation delay (tpd) | 18 ns | 18 ns | 18 ns | 18 ns | 18 ns | 18 ns | 18 ns |
| Certification status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Maximum seat height | 2.03 mm | 5.08 mm | 2.03 mm | 2.03 mm | 5.08 mm | 2.03 mm | 2.03 mm |
| Maximum supply voltage (Vsup) | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.25 V | 5.5 V | 5.5 V |
| Minimum supply voltage (Vsup) | 4.5 V | 4.5 V | 4.5 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 | 5 V |
| surface mount | YES | NO | YES | YES | NO | YES | YES |
| technology | TTL | TTL | TTL | TTL | TTL | TTL | TTL |
| Temperature level | MILITARY | MILITARY | MILITARY | MILITARY | COMMERCIAL | MILITARY | MILITARY |
| Terminal surface | TIN LEAD | TIN LEAD | TIN LEAD | TIN LEAD | TIN LEAD | TIN LEAD | Tin/Lead (Sn/Pb) |
| Terminal form | NO LEAD | THROUGH-HOLE | FLAT | NO LEAD | THROUGH-HOLE | NO LEAD | FLAT |
| Terminal pitch | 1.27 mm | 2.54 mm | 1.27 mm | 1.27 mm | 2.54 mm | 1.27 mm | 1.27 mm |
| Terminal location | QUAD | DUAL | DUAL | QUAD | DUAL | QUAD | DUAL |
| Maximum time at peak reflow temperature | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED |
| width | 8.89 mm | 7.62 mm | 6.29 mm | 8.89 mm | 7.62 mm | 8.89 mm | 6.29 mm |
| Maker | Rochester Electronics | - | - | - | Rochester Electronics | Rochester Electronics | Rochester Electronics |
| Parts packaging code | - | DIP | DFP | QLCC | - | QLCC | DFP |
| Contacts | - | 14 | 14 | 20 | - | 20 | 14 |