參數(shù)資料
型號: MCP79412-I/MNY
元件分類: 時鐘/數(shù)據(jù)恢復及定時提取
英文描述: REAL TIME CLOCK, PDSO8
封裝: 2 X 3 MM, 0.75 MM HEIGHT, ROHS COMPLAINT, PLASTIC, TDFN-8
文件頁數(shù): 37/40頁
文件大?。?/td> 584K
代理商: MCP79412-I/MNY
MCP7941X
DS22266C-page 6
2010-2011 Microchip Technology Inc.
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN DESCRIPTIONS
FIGURE 2-1:
DEVICE PINOUTS
2.1
Serial Data (SDA)
This is a bidirectional pin used to transfer addresses
and data into and out of the device. It is an open-drain
terminal, therefore, the SDA bus requires a pull-up
resistor to VCC (typically 10 k
for 100 kHz, 2 k for
400 kHz). For normal data transfer SDA is allowed to
change only during SCL low. Changes during SCL high
are reserved for indicating the Start and Stop
conditions.
2.2
Serial Clock (SCL)
This input is used to synchronize the data transfer from
and to the device.
2.3
X1, X2
External Crystal Pins.
2.4
MFP
Open drain pin used for alarm and clock-out.
2.5
VBAT
Input for backup supply to maintain RTCC and SRAM
during the time when VCC is below VTRIP.
Pin Name
Pin Function
Vss
Ground
SDA
Bidirectional Serial Data
SCL
Serial Clock
X1
Xtal Input, External Oscillator Input
X2
Xtal Output
VBAT
Battery Backup Input (3V Typ)
MFP
Multi Function Pin
Vcc
+1.8V to +5.5V Power Supply
X1
X2
VBAT
Vss
Vcc
MFP
SCL
SDA
1
2
3
4
8
7
6
5
SOIC/DFN/MSOP/TSSOP
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MCP79412T-I/MS 功能描述:實時時鐘 I2C GP RTCC 1Kb EE 64B SRAM EUI-64 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
MCP79412T-I/SN 功能描述:實時時鐘 I2C GP RTCC 1Kb EE 64B SRAM EUI-64 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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