DS1338Z-33+ vs M41T81SM6F Comparison

Detailed side-by-side comparison of DS1338Z-33+ by Analog Devices and M41T81SM6F by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.

Analog Devices
DS1338Z-33+ DS1338Z-33+ - I2C RTC with 56-Byte NV RAM | Analog Devices

DS1338Z-33+ - I2C RTC with 56-Byte NV RAM | Analog Devices

DS1338Z-33+ ✓ Active
STMicroelectronics
M41T81SM6F M41T81SM6F - Serial RTC 2.7-5.5V I2C 8-SOIC | STMicroelectronics

M41T81SM6F - Serial RTC 2.7-5.5V I2C 8-SOIC | STMicroelectronics

M41T81SM6F ✓ Active

Specification Comparison

Parameter DS1338Z-33+ M41T81SM6F
Brand Analog Devices STMicroelectronics
Category Clock & Timing Clock & Timing
Lifecycle Status Active Active
Stock Status In Stock In Stock
Unit Price (USD) $0.00 $1.55
Device Type Real-time clock and calendar IC —
Supply Voltage Range 3 V to 5.5 V —
Serial Interface I²C, 2-wire serial I2C (2-Wire), 400 kHz Fast-mode
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 —
Mounting Type Surface mount Surface Mount
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] —
Operating Temperature Range [DATA_NEEDED: operating temperature range] -40 C to +85 C
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] —
Manufacturer — STMicroelectronics
Product Type — Serial Real-Time Clock (RTC)
Function — Clock/Calendar with Alarms
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)
Package / Case — 8-SOIC (0.154 inch / 3.90 mm width)
Programmable Alarms — Yes (date/day/time alarm)
Watchdog / SQW Output — Yes
Leap Year Compensation — Automatic through 2099
RoHS Status — Compliant
MSL Level — 1 (unlimited)

Datasheets & Resources

Browse All Products Create BOM Request Quote