Datasheet Texas Instruments BQ4845P-A4 — 数据表
| 制造商 | Texas Instruments |
| 系列 | BQ4845 |
| 零件号 | BQ4845P-A4 |
RTC IC W NVSRAM控制，看门狗定时器，uP复位，中断和电池电量低警告28-PDIP 0至70
数据表
状态
| 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 |
打包
| Pin | 28 | 28 |
| Package Type | N | N |
| Industry STD Term | PDIP | PDIP |
| JEDEC Code | R-PDIP-T | R-PDIP-T |
| Package QTY | 13 | 13 |
| Carrier | TUBE | TUBE |
| Device Marking | 4845P | -A4 |
| Width (mm) | 13.71 | 13.71 |
| Length (mm) | 36.32 | 36.32 |
| Thickness (mm) | 5.08 | 5.08 |
| Pitch (mm) | 2.54 | 2.54 |
| Max Height (mm) | 5.08 | 5.08 |
| Mechanical Data | 下载 | 下载 |
生态计划
| RoHS | Compliant |
| Pb Free | Yes |
应用须知
- U-502 Time-Base Oscillator for RTC ICPDF, 313 Kb, 档案已发布: 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 - U-500 Using the bq4845 for a Low-Cost RTC/NVSRAM SubsystemPDF, 332 Kb, 档案已发布: Sep 5, 1999
Using the bq4845 for a Low-Cost RTC/NVSRAM Subsystem.The bq4845 combines on one IC a low-power real-time clock (RTC), a microcontroller supervisor, and a nonvolatile control circuit for static RAM. The part is the basis of a low-cost, reliable RTC plus nonvolatile SRAM subsystem for many embedded applications. This application note discusses the key aspects of bq4845 operation: component sele
模型线
系列: BQ4845 (9)
制造商分类
- Semiconductors > Clock and Timing > Real-time Clocks
其他名称:
BQ4845PA4, BQ4845P A4