M41T81SM6F vs DS1338Z-33+ Comparison
Detailed side-by-side comparison of M41T81SM6F by STMicroelectronics and DS1338Z-33+ by Analog Devices. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
M41T81SM6F - Serial RTC 2.7-5.5V I2C 8-SOIC | STMicroelectronics
M41T81SM6F ✓ ActiveSpecification Comparison
| Parameter | M41T81SM6F | DS1338Z-33+ |
|---|---|---|
| Brand | STMicroelectronics | Analog Devices |
| Category | Clock & Timing | Clock & Timing |
| Lifecycle Status | Active | Active |
| Manufacturer | STMicroelectronics | — |
| Product Type | Serial Real-Time Clock (RTC) | — |
| Function | Clock/Calendar with Alarms | — |
| Serial Interface | I2C (2-Wire), 400 kHz Fast-mode | I²C, 2-wire serial |
| 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) | — |
| Operating Temperature Range | -40 C to +85 C | [DATA_NEEDED: operating temperature range] |
| Package / Case | 8-SOIC (0.154 inch / 3.90 mm width) | — |
| Mounting Type | Surface Mount | Surface mount |
| Programmable Alarms | Yes (date/day/time alarm) | — |
| Watchdog / SQW Output | Yes | — |
| Leap Year Compensation | Automatic through 2099 | — |
| RoHS Status | Compliant | — |
| MSL Level | 1 (unlimited) | — |
| Device Type | — | Real-time clock and calendar IC |
| Supply Voltage Range | — | 3 V to 5.5 V |
| Calendar Format | — | Full binary-coded decimal (BCD) |
| Nonvolatile Memory | — | 56 bytes NV SRAM |
| Stored Time Fields | — | Seconds, minutes, hours, day, date, month, and year |
| Month-End Handling | — | Automatic adjustment for months with fewer than 31 days |
| Package | — | 8-SOIC, 0.154 inch, 3.90 mm width |
| Temperature Format | — | HH:MM:SS, 12-hour and 24-hour |
| Date Format | — | YY-MM-DD-dd |
| Backup Timekeeping | — | Battery backup |
| Square-Wave Output | — | Available |
| Programmable I²C Address | — | [DATA_NEEDED: programmable I2C address configuration] |
| I²C Maximum Bus Frequency | — | [DATA_NEEDED: I2C maximum bus frequency] |
| RTC Accuracy | — | [DATA_NEEDED: RTC accuracy] |
| Operating Current | — | [DATA_NEEDED: operating current] |
| NV SRAM Write Endurance | — | [DATA_NEEDED: NV SRAM write endurance] |