| PartNumber | BQ3285ES | BQ3285ESS | BQ3285EP |
| Description | Real Time Clock w/242x8 NVSRAM Alarm Wake-up | Real Time Clock w/242x8 NVSRAM Alarm Wake-up | Real Time Clock w/242x8 NVSRAM Alarm Wake-up |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Real Time Clock | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | Through Hole |
| Package / Case | SOIC-24 | - | - |
| RTC Bus Interface | Multiplexed | - | Multiplexed |
| Date Format | YY-MM-DD-dd, Binary | YY-MM-DD-dd | YY-MM-DD-dd |
| Time Format | HH:MM:SS, Binary | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) |
| RTC Memory Size | 242 B | - | 242 B |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Minimum Operating Temperature | 0 C | - | 0 C |
| Maximum Operating Temperature | + 70 C | - | + 70 C |
| Packaging | Tube | Tube Alternate Packaging | Tube |
| Function | Alarm, Calendar, Clock, Timer Interrupt | - | Alarm Calendar Clock Timer Interrupt |
| Series | BQ3285E | - | BQ3285E |
| Brand | Texas Instruments | - | - |
| Product Type | Real Time Clocks | - | - |
| Factory Pack Quantity | 25 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Unit Weight | 0.022025 oz | - | 0.131925 oz |
| Type | - | Clock/Calendar | Clock/Calendar |
| Package Case | - | 24-SSOP (0.154", 3.90mm Width) | PDIP-24 |
| Operating Temperature | - | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | - | Surface Mount | Through Hole |
| Features | - | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output |
| Interface | - | Parallel | Parallel |
| Voltage Supply | - | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V |
| Supplier Device Package | - | 24-SSOP/QSOP | 24-PDIP |
| Memory Size | - | 242B | 242B |
| Voltage Supply Battery | - | 2.5 V ~ 4 V | 2.5 V ~ 4 V |
| Current Timekeeping Max | - | 300μA @ 5V | 300μA @ 5V |
| Product | - | - | Real Time Clocks |
| Supply Voltage Max | - | - | 5.5 V |
| Supply Voltage Min | - | - | 4.5 V |