BQ4845S-A4G4 vs BQ4845YS-A4G4 对比
详细并排对比 BQ4845S-A4G4 出自 Texas Instruments 和 BQ4845YS-A4G4 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
BQ4845YS-A4G4 - Parallel RTC with CPU Supervisor | Texas Instruments
BQ4845YS-A4G4 ✓ 量产中规格对比
| 参数 | BQ4845S-A4G4 | BQ4845YS-A4G4 |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Clock & Timing | Clock & Timing |
| 生命周期状态 | Unknown | 有效 |
| Product Type | Real-time clock and calendar IC with CPU supervisor | Real-time clock and calendar with CPU supervisor |
| Clock Interface | Parallel | — |
| Timekeeping Crystal Frequency | 32.768 kHz | — |
| Backup Battery | 3 V | — |
| Calendar Range | 100 years | — |
| 封装 | 28-SOIC, 0.295 inch width, 7.50 mm | 28-SOIC (0.295 inch, 7.50 mm width) |
| 安装类型 | Surface mount | Surface mount |
| Supervisor Functions | CPU supervisor and watchdog timer | — |
| Alarm and Interrupt Functions | Alarm and interrupt functions | — |
| External Memory Control | Conditional chip-enable output CEOUT | — |
| Battery Monitoring | Battery voltage output VOUT | — |
| Backup Retention | Maintains external SRAM information in the absence of system voltage | — |
| System-Level Use | Battery-backed system timing and power-failure monitoring | — |
| 工作温度范围 | [DATA_NEEDED: Operating temperature range] | — |
| Supply Voltage Range | [DATA_NEEDED: Supply voltage range] | — |
| 静态电流 | [DATA_NEEDED: Quiescent current] | — |
| Timekeeping Accuracy | [DATA_NEEDED: Timekeeping accuracy] | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| RTC Interface | — | Parallel |
| Clock Crystal Frequency | — | 32.768 kHz |
| Backup Battery Voltage | — | 3 V |
| System Supply Voltage | — | 5 V |
| Date Format | — | BCD |
| Clock Format | — | BCD |
| Terminal Count | — | 28 terminals |
| Terminal Form | — | Gull wing |
| Package Shape | — | Rectangular |
| Temperature Grade | — | Commercial |
| Integrated Functions | — | RTC, calendar, CPU supervisor, watchdog timer, and nonvolatile SRAM control |
| Chip Enable Output | — | Conditional chip-enable output (CEOUT) |
| Battery Voltage Output | — | VOUT |
| Backup Behavior | — | Backup cell powers the RTC and maintains external SRAM information in the absence of system voltage |
| Manufacturer Part Number | — | BQ4845YS-A4G4 |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |