參數(shù)資料
型號: M48T37Y-70MH1TR
廠商: STMICROELECTRONICS
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO44
封裝: 0.330 INCH, ROHS COMPLIANT, PLASTIC, SOH-44
文件頁數(shù): 16/30頁
文件大?。?/td> 515K
代理商: M48T37Y-70MH1TR
M48T37Y, M48T37V
DC and AC parameters
Doc ID 7019 Rev 9
Note:
All voltages referenced to VSS.
Table 12.
Power down/up AC characteristics
Symbol
Parameter(1)
1.
Valid for ambient operating temperature: TA = 0 to 70 °C or –40 to 85 °C; VCC = 4.5 to 5.5 V or 3.0 to 3.6 V
(except where noted).
Min
Max
Unit
tF
(2)
2.
VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring
until 200 s after VCC passes VPFD (min).
VPFD (max) to VPFD (min) VCC fall time
300
s
tFB
(3)
3.
VPFD (min) to VSS fall time of less than tFB may cause corruption of RAM data
VPFD (min) to VSS VCC fall time
10
s
tR
VPFD (min) to VPFD (max) VCC rise time
10
s
tRB
VSS to VPFD (min) VCC rise time
1
s
tREC
(4)
4.
tREC (min) = 20 ms for industrial temperature range - grade 6 device.
VPFD (max) to RST high
40
200
ms
Table 13.
Power down/up trip points DC characteristics
Symbol
Parameter(1)
1.
Valid for ambient operating temperature: TA = 0 to 70 °C or –40 to 85 °C; VCC = 4.5 to 5.5 V or 3.0 to 3.6 V
(except where noted).
Min
Typ
Max
Unit
VPFD
Power-fail deselect voltage
M48T37Y
4.2
4.4
4.5
V
M48T37V
2.7
2.9
3.0
V
VSO
Battery backup switchover voltage
M48T37Y
VBAT
V
M48T37V
VPFD –100 mV
V
tDR
(2)
2.
At 25 °C, VCC = 0 V.
Expected data retention time
Grade 1
5
7
Years
Grade 6
10(3)
3.
Using larger M4T32-BR12SH6 SNAPHAT top (recommended for industrial temperature range - grade 6
device).
Years
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M48T37Y-70MH6E 功能描述:實時時鐘 256K (32Kx8) 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
M48T37Y-70MH6F 功能描述:實時時鐘 256K (32Kx8) 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
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M48T37YMH 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM