www.DataSheet4U.com
M41T60
Serial Access Real-Time Clock
FEATURES SUMMARY
■ ■ ■ ■
■ ■ ■ ■ ■ ■ ■ ■ ■
350nA TIMEKEEPING...
www.DataSheet4U.com
M41T60
Serial Access Real-Time Clock
FEATURES SUMMARY
■ ■ ■ ■
■ ■ ■ ■ ■ ■ ■ ■ ■
350nA TIMEKEEPING CURRENT @ 3V TIMEKEEPING DOWN TO 1.0V 1.3V TO 3.6V I2C BUS OPERATING
VOLTAGE COUNTERS FOR SECONDS, MINUTES, HOURS, DAY, DATE, MONTH, YEARS, AND CENTURY SERIAL INTERFACE SUPPORTS I2C BUS (400kHz) SOFTWARE CLOCK CALIBRATION LOW OPERATING CURRENT OF 35µA OSCILLATOR STOP DETECTION AUTOMATIC LEAP YEAR COMPENSATION SOFTWARE PROGRAMMABLE OUTPUT (OUT) OPERATING TEMPERATURE OF –40 TO 85°C LEAD-FREE 16-PIN QFN PACKAGE TOTAL SURFACE AREA OF IC AND 32KHz CRYSTAL IS 21.5mm2
Figure 1. Package
QFN16 (Q)
Figure 2. 32KHz Crystal + QFN16 vs. VSOJ20
VSOJ20 (47.6mm2)
2 GND Plane Guard Ring (21.5mm )
1
XI XO
SMT CRYSTAL
2 3 4
ST QFN16
AI11107
Figure 3. 16-pin QFN Connections
NC NC VCC 14 NC 13 12 11 10 9 5 VSS 6 NC 7 NC 8 NC NC OFIRQ/OUT SCL SDA
(1)
16 XI XO VSS FT
(1)
15
1 2 3 4
AI08870
Note: 1. Open Drain Output.
May 2005
1/23
M41T60
TABLE OF CONTENTS
FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1. Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. 32KHz Crystal + QFN16 vs. VSOJ20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 3. 16-pin QFN Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
