BQ4845YS-A4N vs BQ4845YS-A4G4 对比
详细并排对比 BQ4845YS-A4N 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-A4N - Parallel RTC with CPU Supervisor | Texas Instruments
BQ4845YS-A4N ✓ 量产中Texas Instruments
BQ4845YS-A4G4 - Parallel RTC with CPU Supervisor | Texas Instruments
BQ4845YS-A4G4 ✓ 量产中规格对比
| 参数 | BQ4845YS-A4N | BQ4845YS-A4G4 |
|---|---|---|
| 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 clock/calendar with CPU supervisor | Real-time clock and calendar with CPU supervisor |
| MPN | BQ4845YS-A4N | — |
| Manufacturer | Texas Instruments | — |
| Crystal Frequency | 32.768 kHz | — |
| Battery Voltage Range | 2.3 V to 4 V | — |
| System Supply Condition | 4.5 V to 5.5 V for the stated timekeeping-current condition | — |
| Maximum Timekeeping Current | 1.5 mA at 4.5 V to 5.5 V | — |
| Backup Clock Operation Current | Less than 500 nA | — |
| 接口 | Parallel | — |
| Clock Format | BCD | BCD |
| Calendar Features | Leap year and daylight savings support | — |
| Supervisory Features | CPU supervisor and watchdog timer | — |
| Reset Features | Microprocessor reset and power-fail-related control functions | — |
| Nonvolatile Support | Battery-backup switchover and nonvolatile control for external SRAM | — |
| Backup Source | 3 V backup battery connection | — |
| 封装 | 28-pin 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 |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| 工作温度 | [DATA_NEEDED: operating temperature range] | — |
| Pinout | 28-pin parallel real-time clock and supervisor pinout per manufacturer datasheet | — |
| RTC Interface | — | Parallel |
| Clock Crystal Frequency | — | 32.768 kHz |
| Backup Battery Voltage | — | 3 V |
| System Supply Voltage | — | 5 V |
| Date 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] |