M41T94MQ6F vs M41T65Q6F 对比
详细并排对比 M41T94MQ6F 出自 STMicroelectronics 和 M41T65Q6F 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
M41T94MQ6F - Serial RTC 44B NVRAM SPI 16-SOIC | STMicroelectronics
M41T94MQ6F ✓ 量产中STMicroelectronics
M41T65Q6F - Serial RTC with Alarm, I2C, 1.3V-3.6V | STMicroelectronics
M41T65Q6F ✓ 量产中规格对比
| 参数 | M41T94MQ6F | M41T65Q6F |
|---|---|---|
| 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） | $4.11 | $1.83 |
| 功能 | Serial Real-Time Clock with NVRAM and Reset | Real-Time Clock (RTC) with Alarm |
| 存储容量 | 44 bytes NVRAM (64 x 8, 512 bits) | — |
| Time Format | Day/Date/Month/Year/Century, BCD | — |
| Counter Granularity | Tenths/Hundredths of seconds, Seconds, Minutes, Hours, Day, Date, Month, Year, Century | — |
| 接口 | SPI (4-wire, serial peripheral interface) | I2C (2-Wire Serial), up to 400 kHz |
| SPI Clock Frequency | 2 MHz maximum | — |
| 工作电源电压 | 2.7 V to 5.5 V | — |
| 电源电流 | [DATA_NEEDED: operating Iq typ/max] | — |
| Crystal Oscillator | 32,768 Hz with on-chip load capacitance 12.5 pF | — |
| Crystal Series Resistance | Up to 80 kΩ (high ESR supported) | — |
| Reset Output | Yes, open-drain active-low RESET pulse | — |
| NVRAM Endurance | Battery-backed SRAM | — |
| 工作温度 | -40 °C to +85 °C (industrial) | -40 °C to +85 °C |
| 封装 | 16-pin SOIC (0.154", 3.90 mm width) | 16-VFQFN Exposed Pad (QFN-16 EP) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 (unlimited at <30 °C/85 % RH) | — |
| RoHS 状态 | Compliant | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes (by ST declaration) | — |
| Clock/Calendar Format | — | HH:MM:SS / Day-Date-Month-Year-Century (BCD) |
| Supply Voltage (VCC) | — | 1.3 V to 3.6 V |
| Timekeeping Current | — | Typical <1 µA (battery backup mode) |
| Crystal Frequency | — | 32.768 kHz (external) |
| Crystal Load Capacitance | — | 12.5 pF (typical, per datasheet) |
| Alarm / Interrupt | — | Yes (programmable) |
| Square-Wave Output | — | Programmable (32.768 kHz / 1 Hz) |
| Backup Battery Switchover | — | Automatic with integrated trickle charger |
| Leap-Year Compensation | — | Automatic through year 2100 |