M41T81SM6F vs M41T82RM6F 对比
详细并排对比 M41T81SM6F 出自 STMicroelectronics 和 M41T82RM6F 出自 STMicroelectronics。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。
STMicroelectronics
M41T81SM6F - Serial RTC 2.7-5.5V I2C 8-SOIC | STMicroelectronics
M41T81SM6F ✓ 量产中STMicroelectronics
M41T82RM6F - Low-Power I2C RTC with 32.768 kHz | STMicroelectronics
M41T82RM6F ✓ 量产中规格对比
| 参数 | M41T81SM6F | M41T82RM6F |
|---|---|---|
| 品牌 | STMicroelectronics | STMicroelectronics |
| 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） | $1.55 | $4.01 |
| Manufacturer | STMicroelectronics | — |
| Product Type | Serial Real-Time Clock (RTC) | — |
| 功能 | Clock/Calendar with Alarms | Timekeeping and calendar |
| Serial Interface | I2C (2-Wire), 400 kHz Fast-mode | — |
| Supply Voltage (VCC) | 2.7 V to 5.5 V | — |
| Timekeeping Format | BCD (binary-coded decimal) | — |
| Timekeeper Registers | Tenths of seconds, seconds, minutes, hours, day, date, month, year, century | — |
| Internal SRAM | 64 bytes (64x8) | — |
| Internal Oscillator Frequency | 32.768 kHz (external crystal controlled) | — |
| 工作温度范围 | -40 C to +85 C | — |
| 封装 / 外壳 | 8-SOIC (0.154 inch / 3.90 mm width) | — |
| 安装类型 | Surface Mount | Surface mount |
| Programmable Alarms | Yes (date/day/time alarm) | — |
| Watchdog / SQW Output | Yes | — |
| Leap Year Compensation | Automatic through 2099 | — |
| RoHS 状态 | Compliant | [DATA_NEEDED: RoHS status] |
| MSL 等级 | 1 (unlimited) | — |
| Device Type | — | Serial I2C real-time clock and calendar |
| 接口 | — | I2C, 2-wire serial |
| Register Address Format | — | 7-bit |
| Clock Operating Voltage | — | 2.0 V to 5.5 V |
| Oscillator Frequency | — | 32.768 kHz |
| Oscillator Control | — | External crystal-controlled for SO8 package |
| Battery Supply Current | — | 365 nA ultra-low |
| 封装 | — | 8-pin SOIC |
| Package Width | — | 3.90 mm |
| Alarm Function | — | Available; detailed polarity and behavior require datasheet confirmation |
| Timer Function | — | Available; detailed configuration requires datasheet confirmation |
| Battery Backup | — | Supported by the M41T8x RTC family |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |
| 工作温度 | — | [DATA_NEEDED: operating temperature range] |
| Absolute Maximum Ratings | — | [DATA_NEEDED: absolute maximum ratings] |