BQ4845S-A4 vs BQ4845P-A4 对比
详细并排对比 BQ4845S-A4 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。
Texas Instruments
BQ4845S-A4 - Parallel RTC with CPU Supervisor | Texas Instruments
BQ4845S-A4 ✓ 量产中
规格对比
| 参数 | BQ4845S-A4 | BQ4845P-A4 |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Clock & Timing | Clock & Timing |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.00 | $0.00 |
| Product Type | Parallel real-time clock with CPU supervisor | Parallel real-time clock and calendar with CPU supervisor |
| Timekeeping Format | BCD, seconds through years | — |
| Crystal Frequency | 32.768 kHz | — |
| Backup Battery | 3 V | 3 V backup battery connection |
| Backup Clock Current | Less than 500 nA | — |
| 接口 | Parallel | Parallel |
| Integrated Functions | RTC, CPU supervisor, watchdog timer, reset, interrupts, battery-low warning | — |
| Nonvolatile SRAM Control | External SRAM write protection and switchover control | — |
| Battery-Backup Switchover | On-chip | — |
| CEOUT Function | Conditional chip enable output | — |
| VOUT Function | Battery voltage output | — |
| 封装 | 28-pin SOIC | 28-pin DIP, 0.600 inch / 15.24 mm pitch |
| Package Body Width | 7.50 mm | — |
| Package Length | 0.295 inch | — |
| 安装类型 | Surface mount | — |
| Application Categories | Industrial control systems, point-of-sale terminals, data loggers, computers, fax machines, copiers | — |
| Current Price | [DATA_NEEDED: current distributor unit price] | — |
| 工作温度范围 | [DATA_NEEDED: operating temperature range] | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| Timekeeping | — | Seconds through years in BCD format |
| Calendar Range | — | 100 years |
| Crystal Interface | — | Direct connection for 32.768 kHz quartz crystal |
| 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 |
| 工作温度 | — | [DATA_NEEDED: operating temperature range] |