Datasheet Texas Instruments BQ4285P-SB2
| Manufacturer | Texas Instruments | 
| Series | BQ4285 | 
| Part Number | BQ4285P-SB2 | 

RTC IC With 114x8 NVSRAM and NVSRAM Control 24-PDIP 0 to 70
Datasheets
bq4285 - Real-Time Clock (RTC) With NVRAM Control datasheet
PDF, 1.6 Mb, Revision: A, File published: May 26, 2004
Status
| Lifecycle Status | Lifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect) | 
| Manufacture's Sample Availability | No | 
Packaging
| Pin | 24 | 24 | 
| Package Type | N | N | 
| Industry STD Term | PDIP | PDIP | 
| JEDEC Code | R-PDIP-T | R-PDIP-T | 
| Package QTY | 15 | 15 | 
| Carrier | TUBE | TUBE | 
| Device Marking | 4285P | -SB2 | 
| Width (mm) | 13.71 | 13.71 | 
| Length (mm) | 31.75 | 31.75 | 
| Thickness (mm) | 4.57 | 4.57 | 
| Pitch (mm) | 2.54 | 2.54 | 
| Max Height (mm) | 5.08 | 5.08 | 
| Mechanical Data | Download | Download | 
Eco Plan
| RoHS | Compliant | 
| Pb Free | Yes | 
Application Notes
- U-502 Time-Base Oscillator for RTC ICPDF, 313 Kb, File published: Sep 5, 1999
Time-Base Oscillator for RTC ICs.The operation of the time-base oscillator is critical to the timekeeping functions of the bq3285, bq4285, and bq4845 series of real-time-clocks (RTCs). This application note describes some basic characteristics of the piezoelectric crystal and the on-chip crystal oscillator circuitry designed into these RTC series. It also includes suggestions for achieving timek 
Model Line
Series: BQ4285 (4)
- BQ4285P-SB2 BQ4285S-SB2 BQ4285S-SB2G4 BQ4285S-SB2TR
 
Manufacturer's Classification
- Semiconductors > Clock and Timing > Real-time Clocks
 
Other Names:
BQ4285PSB2, BQ4285P SB2