BQ4285EP vs BQ4845P-A4 对比
详细并排对比 BQ4285EP 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 | BQ4285EP | BQ4845P-A4 |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Clock & Timing | Clock & Timing |
| 生命周期状态 | Unknown | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $1.70 | $0.00 |
| Product Type | Real-time clock and calendar with NVRAM control | Parallel real-time clock and calendar with CPU supervisor |
| Device Family | CMOS BQ4285E/L | — |
| General Nonvolatile Storage | 114 bytes | — |
| Calendar Capability | 100-year calendar | — |
| Clock/Calendar Format | BCD or binary | — |
| Supply Version | 3 V | — |
| 封装 | 24-pin PDIP, 0.600-inch (15.24 mm) | 28-pin DIP, 0.600 inch / 15.24 mm pitch |
| Package Type | Through-hole PDIP | — |
| 接口 | Parallel clock/calendar and NVRAM interface | Parallel |
| Interrupt Sources | 3 maskable interrupt sources | — |
| Square-Wave Output | Available | — |
| Auxiliary Output | 32.768 kHz output | — |
| Alarm Features | Alarm functionality | — |
| Wake-Up Capability | Available | — |
| Battery Operation | Supported | — |
| Legacy Compatibility | Direct clock/calendar replacement for IBM AT-compatible computers | — |
| Technology | CMOS | — |
| RoHS 状态 | unknown | [DATA_NEEDED: RoHS status] |
| REACH Status | unknown | [DATA_NEEDED: REACH status] |
| AEC-Q100 Status | unknown | — |
| 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 |
| 工作温度 | — | [DATA_NEEDED: operating temperature range] |