BQ4845P-A4 vs BQ4845YP-A4E3 对比
详细并排对比 BQ4845P-A4 出自 Texas Instruments 和 BQ4845YP-A4E3 出自 Texas Instruments。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Texas Instruments
BQ4845YP-A4E3 - 5V Parallel RTC with Supervisor | Texas Instruments
BQ4845YP-A4E3 ✓ 量产中规格对比
| 参数 | BQ4845P-A4 | BQ4845YP-A4E3 |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Clock & Timing | Clock & Timing |
| 生命周期状态 | 有效 | 有效 |
| Product Type | Parallel real-time clock and calendar with CPU supervisor | Real-time clock and calendar IC with CPU supervisor |
| Timekeeping | Seconds through years in BCD format | — |
| Calendar Range | 100 years | — |
| Crystal Interface | Direct connection for 32.768 kHz quartz crystal | — |
| Backup Battery | 3 V backup battery connection | — |
| Backup Current | Less than 500 nA in backup mode | — |
| CPU Supervision | Integrated microprocessor supervisor and reset | — |
| Watchdog | Watchdog timer function | — |
| Alarm | Alarm functionality | — |
| Daylight Saving | Daylight-saving support | — |
| Leap Year | Leap-year compensation | — |
| External SRAM Support | Write-protect and nonvolatile support for external SRAM | — |
| Conditional Chip Enable | CEOUT output | — |
| Battery Voltage Output | VOUT output | — |
| 封装 | 28-pin DIP, 0.600 inch / 15.24 mm pitch | 28-DIP (0.600 in, 15.24 mm) |
| 接口 | Parallel | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | RoHS compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | — |
| Supply Voltage Range | — | 4.5 V to 5.5 V |
| Clock Crystal Frequency | — | 32.768 kHz |
| Clock Format | — | BCD |
| Date Format | — | BCD |
| 接口类型 | — | Parallel |
| 安装方式 | — | Through-hole |
| 引脚数 | — | 28 pins |
| 工作温度范围 | — | 0 °C to 70 °C |
| Temperature Grade | — | Commercial |
| Backup Battery Support | — | 3 V backup battery connection |
| Backup Mode Clock Current | — | Less than 500 nA |
| Watchdog Timer | — | Yes, programmable timeout |
| Power-Fail Warning | — | Yes |
| Leap-Year Feature | — | Yes |
| Daylight Savings Feature | — | Yes |
| Alarm Feature | — | Yes |
| Conditional Chip Enable Output | — | CEOUT for external SRAM write protection |
| Backup Voltage Output | — | VOUT for battery-voltage monitoring |