参数资料
型号: M48T212Y-70MH1F
厂商: STMICROELECTRONICS
元件分类: 时钟/数据恢复及定时提取
英文描述: REAL TIME CLOCK, PDSO44
封装: 0.330 INCH, LEAD FREE, PLASTIC, SOH-44
文件页数: 1/32页
文件大小: 473K
代理商: M48T212Y-70MH1F
1/32
April 2004
M48T212Y
M48T212V
5.0V or 3.3V TIMEKEEPER Supervisor
FEATURES SUMMARY
INTEGRATED REAL TIME CLOCK, POWER-
FAIL CONTROL CIRCUIT, BATTERY AND
CRYSTAL
CONVERTS LOW POWER SRAM INTO
NVRAMs
YEAR 2000 COMPLIANT (4-Digit Year)
BATTERY LOW FLAG
MICROPROCESSOR POWER-ON RESET
PROGRAMMABLE ALARM OUTPUT
ACTIVE IN THE BATTERY BACKED-UP
MODE
WATCHDOG TIMER
AUTOMATIC POWER-FAIL CHIP
DESELECT AND WRITE PROTECTION
CHOICE OF WRITE PROTECT VOLTAGES
(VPFD = Power-fail Deselect Voltage):
M48T212Y: VCC = 4.5 to 5.5V
4.2V
≤ VPFD ≤ 4.5V
M48T212V: VCC = 3.0 to 3.6V
2.7V
≤ VPFD ≤ 3.0V
PACKAGING INCLUDES A 44-LEAD SOIC
AND SNAPHAT TOP (to be ordered
separately)
Figure 1. 44-pin SOIC Package
SOH44 (MH)
SNAPHAT (SH)
Crystal/Battery
44
1
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