BQ4845S-A4NG4 vs BQ4845P-A4 对比
详细并排对比 BQ4845S-A4NG4 出自 Texas Instruments 和 BQ4845P-A4 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。
规格对比
| 参数 | BQ4845S-A4NG4 | BQ4845P-A4 |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Clock & Timing | Clock & Timing |
| 生命周期状态 | Unknown | 有效 |
| Device Type | Parallel real-time clock with CPU supervisor | — |
| Clock IC Type | Real-time clock (RTC) | — |
| 接口类型 | Parallel | — |
| Clock Format | BCD | — |
| Date Format | BCD | — |
| Calendar | 100-year calendar | — |
| Crystal Frequency | 32.768 kHz | — |
| System Supply Voltage | 5 V | — |
| Backup Battery Voltage | 3 V | — |
| 封装 | 28-pin SOIC, 7.50 mm width | 28-pin DIP, 0.600 inch / 15.24 mm pitch |
| 引脚数量 | 28 pins | — |
| 工作温度 | -40°C to +85°C | [DATA_NEEDED: operating temperature range] |
| Integrated Functions | NVSRAM control, watchdog timer, CPU reset, interrupts, and battery-low warning | — |
| External SRAM Support | Conditional chip enable output (CEOUT) and battery voltage output (VOUT) | Write-protect and nonvolatile support for external SRAM |
| Alarm Capability | Supported | — |
| Daylight Saving Support | Supported | — |
| Leap-Year Handling | Supported | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| Product Type | — | Parallel real-time clock and calendar 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 |
| Conditional Chip Enable | — | CEOUT output |
| Battery Voltage Output | — | VOUT output |
| 接口 | — | Parallel |