Datasheet Microchip MCP7940N-E/MS MCP7940N-E/MS Datasheet Microchip, Download PDF

Datasheet Microchip MCP7940N-E/MS

ManufacturerMicrochip
SeriesMCP7940N

The MCP7940N series of low-power Real-Time Clocks (RTC) uses digital timing compensation for an accurate clock/calendar, a programmable output control for versatility, and a power sense circuit that automatically switches to the backup supply

Datasheets

MCP7940N Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
PDF, 1.4 Mb, File published: Mar 20, 2014
Docket

Prices

Status

Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)

Status

MCP7940N-E/MSMCP7940N-E/SNMCP7940N-I/MSMCP7940N-I/PMCP7940N-I/SNMCP7940N-I/STMCP7940NT-E/MSMCP7940NT-E/SNMCP7940NT-E/SNVAOMCP7940NT-I/MNYMCP7940NT-I/MSMCP7940NT-I/SNMCP7940NT-I/ST
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)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

PackageMSOP
Pins8

Parametrics

Alarms2 Alarms (1 sec)
Digital_Trimming-127 to +127ppm (1 ppm steps)
Ibat Current700 nA
InterfaceI²C™
Operating Temperature Range-40 to +125 °C
OutputsIRQ/CLK
Power-Fail TimestampVCC Fail and VCC Restore
Temperature Range-40 to +125
Unique IDNone MAC_Address
User SRAM64 Bytes
Vbat Range1.3 - 5.5 V
Vcc Range1.8 - 5.5 V

Eco Plan

RoHSCompliant

Eco Plan

MCP7940N-E/MSMCP7940N-E/SNMCP7940N-I/MSMCP7940N-I/PMCP7940N-I/SNMCP7940N-I/STMCP7940NT-E/MSMCP7940NT-E/SNMCP7940NT-E/SNVAOMCP7940NT-I/MNYMCP7940NT-I/MSMCP7940NT-I/SNMCP7940NT-I/ST
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Model Line

Manufacturer's Classification