RTC(REAL TIME CLOCK PLUS RAM)
| HD146818 | HD146818P | HD146818FP | |
|---|---|---|---|
| Description | RTC(REAL TIME CLOCK PLUS RAM) | RTC(REAL TIME CLOCK PLUS RAM) | RTC(REAL TIME CLOCK PLUS RAM) |
| Is it Rohs certified? | - | incompatible | incompatible |
| Maker | - | Hitachi （Renesas ） | Hitachi （Renesas ） |
| Parts packaging code | - | DIP | DFP |
| package instruction | - | PLASTIC, DIP-24 | SOP, SOP24,.45 |
| Contacts | - | 24 | 24 |
| Reach Compliance Code | - | unknow | unknow |
| ECCN code | - | EAR99 | EAR99 |
| Is Samacsys | - | N | N |
| Other features | - | 3 TIME BASE I/P OPTIONS | 3 TIME BASE I/P OPTIONS |
| Bus compatibility | - | HD6801; HD6301; 8085 | HD6801; HD6301; 8085 |
| External data bus width | - | 8 | 8 |
| Information access methods | - | PARALLEL, MUXED BUS | PARALLEL, MUXED BUS |
| interrupt capability | - | Y | Y |
| JESD-30 code | - | R-PDIP-T24 | R-PDSO-G24 |
| JESD-609 code | - | e0 | e0 |
| length | - | 31.6 mm | 15.8 mm |
| Number of terminals | - | 24 | 24 |
| Number of timers | - | 1 | 1 |
| On-chip data RAM width | - | 8 | 8 |
| Maximum operating temperature | - | 70 °C | 70 °C |
| Maximum output clock frequency | - | 0.032768 MHz | 0.032768 MHz |
| Package body material | - | PLASTIC/EPOXY | PLASTIC/EPOXY |
| encapsulated code | - | DIP | SOP |
| Encapsulate equivalent code | - | DIP24,.6 | SOP24,.45 |
| Package shape | - | RECTANGULAR | RECTANGULAR |
| Package form | - | IN-LINE | SMALL OUTLINE |
| Peak Reflow Temperature (Celsius) | - | NOT SPECIFIED | NOT SPECIFIED |
| power supply | - | 5 V | 5 V |
| Certification status | - | Not Qualified | Not Qualified |
| RAM (number of words) | - | 50 | 50 |
| Maximum seat height | - | 5.7 mm | 2.5 mm |
| Maximum slew rate | - | 10 mA | 10 mA |
| Maximum supply voltage | - | 5.25 V | 5.25 V |
| Minimum supply voltage | - | 4.5 V | 4.5 V |
| Nominal supply voltage | - | 5 V | 5 V |
| surface mount | - | NO | YES |
| technology | - | CMOS | CMOS |
| Temperature level | - | COMMERCIAL | COMMERCIAL |
| Terminal surface | - | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) |
| Terminal form | - | THROUGH-HOLE | GULL WING |
| Terminal pitch | - | 2.54 mm | 1.27 mm |
| Terminal location | - | DUAL | DUAL |
| shortest time | - | SECONDS | SECONDS |
| Maximum time at peak reflow temperature | - | NOT SPECIFIED | NOT SPECIFIED |
| Volatile | - | YES | YES |
| width | - | 15.24 mm | 8.4 mm |
| uPs/uCs/peripheral integrated circuit type | - | TIMER, REAL TIME CLOCK | TIMER, REAL TIME CLOCK |
| Base Number Matches | - | 1 | 1 |
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