参数资料
型号: M41ST84YMH6F
厂商: STMICROELECTRONICS
元件分类: 时钟/数据恢复及定时提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封装: 0.330 INCH, LEAD FREE, PLASTIC, SOH-28
文件页数: 1/31页
文件大小: 507K
代理商: M41ST84YMH6F
1/31
October 2004
M41ST84Y
M41ST84W
5.0 or 3.0V, 512 bit (64 x8) Serial RTC
with Supervisory Functions
* Contact Local Sales Office
FEATURES SUMMARY
5.0 OR 3.0V OPERATING VOLTAGE
SERIAL INTERFACE SUPPORTS I2C BUS
(400kHz)
OPTIMIZED FOR MINIMAL
INTERCONNECT TO MCU
2.5 TO 5.5V OSCILLATOR OPERATING
VOLTAGE
AUTOMATIC SWITCH-OVER AND
DESELECT CIRCUITRY
CHOICE OF POWER-FAIL DESELECT
VOLTAGES:
M41ST84Y: VCC = 4.5 to 5.5V;
4.20V
≤ VPFD ≤ 4.50V
M41ST84W: VCC = 2.7 to 3.6V;
2.55V
≤ VPFD ≤ 2.70V
1.25V REFERENCE (for PFI/PFO)
COUNTERS FOR TENTHS/HUNDREDTHS
OF SECONDS, SECONDS, MINUTES,
HOURS, DAY, DATE, MONTH, YEAR, AND
CENTURY
44 BYTES OF GENERAL PURPOSE RAM
PROGRAMMABLE ALARM AND
INTERRUPT FUNCTION (VALID EVEN
DURING BATTERY BACK-UP MODE)
WATCHDOG TIMER
MICROPROCESSOR POWER-ON RESET
BATTERY LOW FLAG
POWER-DOWN TIME-STAMP (HT Bit)
ULTRA-LOW BATTERY SUPPLY CURRENT
OF 500 nA (max)
OPTIONAL PACKAGING INCLUDES A 28-
LEAD SOIC and SNAPHAT TOP (to be
ordered separately)
SNAPHAT PACKAGE PROVIDES DIRECT
CONNECTION FOR A SNAPHAT TOP,
WHICH CONTAINS THE BATTERY AND
CRYSTAL
Figure 1. 16-pin SOIC Package
Figure 2. 28-pin SOIC Package*
16
1
SO16 (MQ)
28
1
SOH28 (MH)
SNAPHAT (SH)
Battery & Crystal
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