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M41T93RMY6F View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
M41T93RMY6F
ST-Microelectronics
STMicroelectronics ST-Microelectronics
M41T93RMY6F Datasheet PDF : 51 Pages
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M41T93
Serial SPI bus RTC with battery switchover
Features
Ultra-low battery supply current of 365nA
Factory calibrated accuracy ±5PPM
guaranteed after 2 reflows (SOX18)
– Much better accuracies achievable using
built-in programmable analog and digital
calibration circuits
2.0V to 5.5V clock operating voltage
Counters for tenths/hundredths of seconds,
seconds, minutes, hours, day, date, month,
year, and century
Automatic switch-over and reset output
circuitry (fixed reference)
– M41T93S: VCC = 3.0V to 5.5V
(2.85V VRST 3.00V)
– M41T93R: VCC = 2.7V to 5.5V
(2.55V VRST 2.70V)
– M41T93Z: VCC = 2.38V to 5.50V
(2.25V VRST 2.38V)
Compatible with SPI bus serial interface
(positive clock SPI modes)
Programmable alarm with interrupt function
(valid even during battery back-up mode)
Optional 2nd programmable alarm available
Square wave output (defaults to 32kHz on
power-up)
RESET (RST) output
Watchdog timer
Programmable 8-bit counter/timer
7 bytes of battery-backed user SRAM
Battery low flag
Power-down time stamp (HT bit)
Low operating current of 80µA
Oscillator stop detection
Battery or Super-cap™ back-up
Operating temperature of –40°C to +85°C
QFN16, 4mm x 4mm (QA)
18
1
SOX18 (MY, 18-pin, 300mil SOIC
with embedded crystal)
Package options include:
– a 16-lead QFN or an 18-lead embedded
crystal SOIC
RoHS compliance: lead-free components are
compliant with the RoHS directive
October 2007
Rev 3
1/51
www.st.com
51
 

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