Datasheet Microchip MCP7940M

ManufacturerMicrochip
SeriesMCP7940M
The MCP7940M I2CTM compatible real-time clock/calendar (RTCC) includes SRAM and a digital trimming circuit for accuracy which is normally found in higher priced devices

Datasheets

Datasheet PDF, 1.3 Mb, File published: Jun 23, 2014
MCP7940M Low-Cost I2C RTCC with SRAM
Docket

Prices

Status

MCP7940M-I/MSMCP7940M-I/PMCP7940M-I/SNMCP7940M-I/STMCP7940MT-I/MNYMCP7940MT-I/MSMCP7940MT-I/SNMCP7940MT-I/STMCP7940MT-I/STVAO
Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)

Packaging

MCP7940M-I/MSMCP7940M-I/PMCP7940M-I/SNMCP7940M-I/STMCP7940MT-I/MNYMCP7940MT-I/MSMCP7940MT-I/SNMCP7940MT-I/STMCP7940MT-I/STVAO
PackageMSOPPDIPSOICTSSOPTDFNMSOPSOICTSSOPTSSOP
Pins888888888

Parametrics

Parameters / ModelsMCP7940M-I/MSMCP7940M-I/PMCP7940M-I/SNMCP7940M-I/STMCP7940MT-I/MNYMCP7940MT-I/MSMCP7940MT-I/SNMCP7940MT-I/STMCP7940MT-I/STVAO
Alarms2 Alarms (1 sec)2 Alarms (1 sec)2 Alarms (1 sec)2 Alarms (1 sec)2 Alarms (1 sec)2 Alarms (1 sec)2 Alarms (1 sec)2 Alarms (1 sec)2 Alarms (1 sec)
Digital_Trimming-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)-127 to +127ppm (1 ppm steps)
InterfaceI²C™I²C™I²C™I²C™I²C™I²C™I²C™I²C™I²C™
Operating Temperature Range, °C-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85
OutputsIRQ/CLKIRQ/CLKIRQ/CLKIRQ/CLKIRQ/CLKIRQ/CLKIRQ/CLKIRQ/CLKIRQ/CLK
Temperature Range-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85
Unique ID, MAC_AddressNoneNoneNoneNoneNoneNoneNoneNoneNone
User SRAM, Bytes646464646464646464
Vcc Range, V1.8 - 5.51.8 - 5.51.8 - 5.51.8 - 5.51.8 - 5.51.8 - 5.51.8 - 5.51.8 - 5.51.8 - 5.5

Eco Plan

MCP7940M-I/MSMCP7940M-I/PMCP7940M-I/SNMCP7940M-I/STMCP7940MT-I/MNYMCP7940MT-I/MSMCP7940MT-I/SNMCP7940MT-I/STMCP7940MT-I/STVAO
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Model Line

Manufacturer's Classification