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參數(shù)資料
| 型號： | M41T50Q6F |
| 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： | 1 TIMER(S), REAL TIME CLOCK, QCC16 |
| 封裝： | 3 X 3 MM, LEAD FREE, QFN-16 |
| 文件頁數(shù)： | 18/23頁 |
| 文件大?。?/td> | 288K |
| 代理商： | M41T50Q6F |
M41T50
4/23
SUMMARY DESCRIPTION
The M41T50 Serial Access TIMEKEEPER is a
low power Serial RTC that does not require a crys-
tal. The clock operates from a digital clock input
pin at 50Hz or 60Hz. Eight registers (see Table
2., page 12) are used for the clock/calendar func-
tion and are configured in binary coded decimal
(BCD) format. An additional 8 registers provide
status/control of Alarm, Square Wave (1Hz), and
50Hz or 60Hz digital clock frequency selection
functions. Addresses and data are transferred se-
rially via a two line, bi-directional I2C interface. The
built-in address register is incremented automati-
cally after each WRITE or READ data byte.
Functions available to the user include a time-of-
day clock/calendar, Alarm interrupts, and Square
Wave output. The eight clock address locations
contain the century, year, month, date, day, hour,
minute, and seconds in 24-hour BCD format. Cor-
rections for 28-, 29- (leap year), 30- and 31-day
months are made automatically.
The M41T50 is supplied in a 16-pin QFN.
Figure 2. Logic Diagram
Note: 1. Open Drain only.
2. Defaults to push-pull (SQW disabled) on power-up. May
also be programmed to be Open Drain.
Table 1. Signal Names
Figure 3. 16-pin QFN Connections
Note: 1. Open Drain only.
2. Defaults to push-pull (SQW disabled) on power-up. May
also be programmed to be Open Drain.
SCL
VCC
M41T50
VSS
SDA
IRQ/OUT
(1)
SQW (1Hz)
(2)
CLKIN
AI09110
CLKIN
Digital Clock Input (50Hz or 60Hz)
SDA
Serial Data Input/Output
SCL
Serial Clock Input
IRQ/OUT
Interrupt or OUT Output (Open
Drain)
SQW
(1Hz)
Square Wave Output (Open Drain
or Push-pull)
VCC
Supply Voltage
VSS
Ground
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CLKIN
NC
SQW (1Hz)
(2)
VSS
V
SS
V
CC
NC
SCL
SDA
IRQ/OUT
(1)
AI09111
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參數(shù)描述 |
|---|---|
| M41T56 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 bit 64b x8 Serial Access TIMEKEEPER SRAM |
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| M41T56C64MY6E | 功能描述:實時時鐘 SERIAL REAL TIME CLOCK W/56 BYTES 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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