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| Part Number | DS1321+ | DS1321S+ | DS1321E+ | DS1321S | DS1321E | DS1321 |
|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Active | Active | Active | Obsolete | Obsolete | Obsolete |
| Controller Type | Nonvolatile RAM | Nonvolatile RAM | Nonvolatile RAM | Nonvolatile RAM | Nonvolatile RAM | Nonvolatile RAM |
| Voltage - Supply | 4.75V ~ 5.5V | 4.75V ~ 5.5V | 4.75V ~ 5.5V | 4.75V ~ 5.5V | 4.75V ~ 5.5V | 4.75V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Through Hole |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 16-SOIC (0.154", 3.90mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-PDIP | 16-SOIC | 20-TSSOP | 16-SOIC | 20-TSSOP | 16-PDIP |
