 |  |  | |
| PartNumber | DS1643-100+ | DS1642-85+ | DS1643-100 |
| Description | Real Time Clock NV Timekeeping RAM | Real Time Clock NV Timekeeping RAM | Real Time Clock NV Timekeeping RAM |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | - |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | eDIP-28 | eDIP-24 | eDIP |
| RTC Bus Interface | Parallel | Parallel | Parallel |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| RTC Memory Size | 8 kB | 2048 B | 8 kB |
| Supply Voltage Max | 5.5 V | - | 5.5 V |
| Supply Voltage Min | 4.5 V | - | 4.5 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Packaging | Tube | Bulk | Bulk |
| Function | Calendar, Clock, NV Timekeeping RAM | Calendar, Clock, NV Timekeeping RAM | Calendar, Clock, NV Timekeeping RAM |
| Series | DS1643 | DS1642 | DS1643 |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Factory Pack Quantity | 12 | 20 | 12 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-16430+100 DS1643 | 90-16420+085 DS1642 | DS1643 |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Maxim Integrated |
DS1643-100+ | Real Time Clock NV Timekeeping RAM | |
| DS1644-120+ | Real Time Clock NV Timekeeping RAM | ||
| DS1642-85+ | Real Time Clock NV Timekeeping RAM | ||
| DS1643-100 | Real Time Clock NV Timekeeping RAM | ||
| DS1644P-120 | Real Time Clock | ||
| DS1643-70 | Real Time Clock | ||
| DS1644-120 | Real Time Clock | ||
| DS1643P-100+ | Real Time Clock NV Timekeeping RAM | ||
| DS1644P-120+ | Real Time Clock NV Timekeeping RAM | ||
| DS1643-70 | IC RTC CLK/CALENDAR PAR 28-EDIP | ||
| DS1643-100 | IC RTC CLK/CALENDAR PAR 28-EDIP | ||
| DS1643AL-120 | IC RTC CLK/CALENDAR PAR 34-LPM | ||
| DS1643P-70 | IC RTC CLK/CALENDAR PAR 34-PCM | ||
| DS1644-120 | IC RTC CLK/CALENDAR PAR 28-EDIP | ||
| DS1644P-120 | IC RTC CLK/CALENDAR PAR 34-PCM | ||
| DS1643P-85+ | Real Time Clock NV Timekeeping RAM | ||
| DS1643-85+ | Real Time Clock NV Timekeeping RAM | ||
| DS1644-120+ | IC RTC CLK/CALENDAR PAR 28-EDIP | ||
| DS1644P-120+ | Real Time Clock NV Timekeeping RAM | ||
| DS1642-85+ | Real Time Clock NV Timekeeping RAM | ||
| DS1643P-100+ | Real Time Clock NV Timekeeping RAM | ||
| DS1643-100+ | Real Time Clock NV Timekeeping RAM | ||
| DS1643-70+ | IC RTC CLK/CALENDAR PAR 28-EDIP | ||
| DS1643P-70+ | IC RTC CLK/CALENDAR PAR 34-PCM | ||
| DS1644-100IND | New and Original | ||
| DS1644-200IND | New and Original | ||
| DS1644L-120 | Real Time Clock | ||
| DS1644W-200+ | New and Original | ||
| DS1644120PULLS | INSTOCK | ||
| DS1642100 | New and Original | ||
| DS1643-150 | Real Time Clock, Non-Volatile, 28 Pin, Plastic, DIP | ||
| DS1643-200 | New and Original | ||
| DS1643P-120 | Real Time Clock, Non-Volatile, 34 Pin, Plastic | ||
| DS1643P-ABO | New and Original | ||
| DS1643Y-100 | New and Original | ||
| DS1644-100 | New and Original | ||
| DS1644-120IND | New and Original | ||
| DS1644-150+ | Real Time Clock, Non-Volatile, 28 Pin, Plastic, DIP | ||
| DS1644-200 | New and Original | ||
| DS1644J | New and Original | ||
| DS1644L-120. | New and Original | ||
| DS1644P-120(SMD) | New and Original | ||
| DS1644P+120 | 0 TIMER(S), REAL TIME CLOCK, DMA34 | ||
| DS1642-85 | Real Time Clock | ||
| DS1643-070 | New and Original | ||
| DS1643-120 | Real Time Clock, Non-Volatile, 28 Pin, Plastic, DIP | ||
| DS1643-AB | New and Original | ||
| DS1643P+100 | New and Original | ||
| DS1644+120 | New and Original | ||
| DS1646 | New and Original |