 |  | | |
| PartNumber | DS1557WP-120+ | DS1557P-70IND+ | DS1557P-70+ |
| Description | Real Time Clock 4M NV RAM Timekeeper | Real Time Clock 4M NV RAM Timekeeper | Real Time Clock 4M NV RAM Timekeeper |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | PowerCap-34 | PowerCap | PowerCap Module-34 |
| RTC Bus Interface | Parallel | Parallel | Parallel |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| RTC Memory Size | 524288 B | 524288 B | 524288 B |
| Supply Voltage Max | 3.63 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 2.97 V | 4.5 V | 4.5 V |
| Minimum Operating Temperature | 0 C | - 40 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 85 C | + 70 C |
| Packaging | Tube | Tray | Tube |
| Function | Alarm, Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper | Alarm, Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper | Alarm, Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1557WP | DS1557P | DS1557P |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 40 | 40 | 40 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1557W+P12 DS1557WP | 90-1557P+07I DS1557P | 90-1557P+070 DS1557P |
| Date Format | - | - | DW:DM:M:Y |
| Operating Supply Current | - | - | 45 mA |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Maxim Integrated |
DS1557WP-120+ | Real Time Clock 4M NV RAM Timekeeper | |
| DS1557WP-120IND+ | Real Time Clock 4M NV RAM Timekeeper | ||
| DS1557P-70IND+ | Real Time Clock 4M NV RAM Timekeeper | ||
| DS1557P-70+ | Real Time Clock 4M NV RAM Timekeeper | ||
| DS1557WP-120IND | Real Time Clock | ||
| DS1557P-70IND+ | Real Time Clock 4M NV RAM Timekeepe | ||
| DS1557WP-120IND+ | Real Time Clock 4M NV RAM Timekeepe | ||
| DS1557P-70+ | Real Time Clock 4M NV RAM Timekeepe | ||
| DS1557WP-120+ | Real Time Clock 4M NV RAM Timekeepe | ||
| DS1557P70 | New and Original | ||
| DS1557WP120 | New and Original | ||
| DS1557P | New and Original | ||
| DS1557P-70 | IC RTC CLK/CALENDAR PAR 34-PCM | ||
| DS1557P-70IND | IC RTC CLK/CALENDAR PAR 34-PCM | ||
| DS1557WP-120 | IC RTC CLK/CALENDAR PAR 34-PCM | ||
| DS1557WP-120IND | IC RTC CLK/CALENDAR PAR 34-PCM |