參數(shù)資料
型號： M48T251V-70PM1TR
廠商： 意法半導(dǎo)體
英文描述： 5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
中文描述： 5.0或3.3V，4096K與幻象計時器的SRAM
文件頁數(shù)： 1/24頁
文件大?。?/td> 366K
代理商： M48T251V-70PM1TR
1/24
February 2005
M48T251Y
M48T251V
5.0 or 3.3V, 4096K TIMEKEEPER
SRAM with PHANTOM
FEATURES SUMMARY
■
5.0V OR 3.3V OPERATING VOLTAGE
REAL TIME CLOCK KEEPS TRACK OF
TENTHS/HUNDREDTHS OF SECONDS,
SECONDS, MINUTES, HOURS, DAYS,
DATE OF THE MONTH, MONTHS, AND
YEARS
AUTOMATIC LEAP YEAR CORRECTION
VALID UP TO THE YEAR 2100
AUTOMATIC SWITCH-OVER AND
DESELECT CIRCUITRY
CHOICE OF POWER-FAIL DESELECT
VOLTAGES:
(V
PFD
= Power-fail Deselect Voltage):
–
–
FULL 10% V
CC
OPERATING RANGE
OVER 10 YEARS’ DATA RETENTION IN
THE ABSENCE OF POWER
WATCH FUNCTION IS TRANSPARENT TO
RAM OPERATION
512K x 8 NV SRAM DIRECTLY REPLACES
VOLATILE STATIC RAM OR EEPROM
■
■
■
■
M48T251Y: 4.25V
≤
V
PFD
≤
4.50V
M48T251V: 2.80V
≤
V
PFD
≤
2.97V
■
■
■
■
Figure 1. 32-pin, DIP Package
32
1
PMDIP32 (PM)
相關(guān)PDF資料
PDF描述
M48T251V-85PM1 5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T251V-85PM1TR 5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T251V 5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T251VPM 5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T35AYMH ER 5C 5#16 PIN PLUG
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M48T251V-85PM1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T251V-85PM1TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T251VPM 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T251Y 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
M48T251Y-70PM1 功能描述:實時時鐘 4M (512Kx8) 70ns RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
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