MCP79400T-I/MNY Microchip Technology, MCP79400T-I/MNY Datasheet - Page 6
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MCP79400T-I/MNY
Manufacturer Part Number
MCP79400T-I/MNY
Description
Real Time Clock I2C GP RTCC 64B SRAM ID
Manufacturer
Microchip Technology
Series
-r
Type
Clock/Calendarr
Datasheet
1.MCP79401T-IMNY.pdf
(38 pages)
Specifications of MCP79400T-I/MNY
Features
Alarm, Leap Year, SRAM
Memory Size
64B
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
I²C
Voltage - Supply
1.8 V ~ 5.5 V
Voltage - Supply, Battery
1.3 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-WFDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
MCP7940X
2.0
The descriptions of the pins are listed in
FIGURE 2-1:
2.1
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 V
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
This input is used to synchronize the data transfer from
and to the device.
TABLE 2-1:
DS25009A-page 6
Vss
SDA
SCL
X1
X2
V
MFP
Vcc
Pin Name
BAT
PIN DESCRIPTIONS
Serial Data (SDA)
Serial Clock (SCL)
CC
V
SOIC/DFN/MSOP/TSSOP
Ground
Bidirectional Serial Data
Serial Clock
Xtal Input, External Oscillator Input
Xtal Output
Battery Backup Input (3V Typ)
Multi Function Pin
+1.8V to +5.5V Power Supply
Vss
BAT
X1
X2
(typically 10 k for 100 kHz, 2 k for
PIN DESCRIPTIONS
1
2
3
4
DEVICE PINOUTS
Pin Function
8
7
6
5
Vcc
MFP
SCL
SDA
Table
2-1.
2011 Microchip Technology Inc.