MCP7940M-I/MS Price & Stock
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Manufacturer

Integrated Circuits (ICs) > Clock/Timing - Real Time Clocks
IC RTC CLK/CALENDAR I2C 8-MSOP
Documents
Datasheet |
MCP7940M-I/MS![]() |
Specifications
Part Status | Active |
Type | Clock/Calendar |
Features | Alarm, Leap Year, Square Wave Output, SRAM |
Memory Size | 64B |
Time Format | HH:MM:SS (12/24 hr) |
Date Format | YY-MM-DD-dd |
Interface | I²C, 2-Wire Serial |
Voltage - Supply | 1.8 V ~ 5.5 V |
Current - Timekeeping (Max) | 1µA @ 5.5V |
Operating Temperature | -40°C ~ 85°C |
Mounting Type | Surface Mount |
Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
Supplier Device Package | 8-MSOP |

Electronic & Electrical Components > Semiconductors - ICs > Clocks Timing & Frequency Management > Real Time Clocks
RTC I2C 64BYTES SRAM 8MSOP
Documents
Datasheet |
MCP7940M-I/MS![]() |
Specifications
Clock IC Type | RTC |
Supply Voltage Min | 1.8V |
Supply Voltage Max | 5.5V |
Clock IC Case Style | MSOP |
No. of Pins | 8Pins |
IC Interface Type | I2C |
Operating Temperature Min | -40°C |
Operating Temperature Max | 85°C |
Packaging | Each |
Product Range | - |
Automotive Qualification Standard | AEC-Q100 |
MSL | MSL 1 - Unlimited |
SVHC | No SVHC (17-Dec-2015) |
Operating Temperature Range | -40°C to +85°C |
Supply Voltage Range | 1.8V to 5.5V |
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Ersa Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8MSOP | 3445 |
|
Inquiry |

Fmall Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8MSOP | 18650 |
|
Inquiry |

Heisener Electronics Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP Clock/Timing - Real Time Clocks
|
15438 |
|
Buy |

Xinghuan International Trade Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 45696 |
|
Inquiry |

Lingto Electronic Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | DC:24+ ; Original New | 28026 |
|
Inquiry |

Sunether Technology Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 378 |
|
Inquiry |

Hotenda Technology
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | Real Time Clock (RTC) IC Clock/Calendar 64B I??C, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118"", 3.00mm Width) | 2788 |
|
Inquiry |

Mouser
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS
sku #: 579-MCP7940M-I/MS
|
Microchip Technology | Real Time Clock I2C RTCC 64B SRAM No VBAT Real Time Clock
|
355 In Stock |
|
Buy | ||||||||
MCP7940MT-I/MS
sku #: 579-MCP7940MT-I/MS
|
Microchip Technology | Real Time Clock I2C RTCC 64B SRAM No VBAT Real Time Clock
|
2471 In Stock |
|
Buy |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 588 |
|
Inquiry |

PNEDA Technology Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 16581 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP Clock/Timing - Real Time Clocks
|
In-Stock |
|
Inquiry |

Shenzhen Dasenic Electronic Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8MSOP Integrated Circuits (ICs)>Clock/Timing - Real Time Clocks
|
4545 |
|
Buy |

Chip Source Co.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 145441 |
|
Inquiry |

AAA Chips Technology (HK) Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 8-TSSOP 8-MSOP (0.118 3.00mm Width) MCP7940M e3 Alarm Leap Year Square Wave Output SRAM rtc clock circuit 1.8V~5.5V 1muA @ 5.5V 3mm -40C~85C | 15099 |
|
Inquiry |

Ample Chip
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Roving Networks / Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 161290 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 1581 |
|
Inquiry |

EA-chip Industry Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 3832 |
|
Inquiry |

Lvy Electronics
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | 2000 |
|
Inquiry | |||
MCP7940M-I/MS | Microchip Technology | 2000 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip | MSOP-8 | 7845 |
|
Inquiry |

Unikey Electronics Pte. Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 942 |
|
Inquiry |

Geefook (Shenzhen) Electronic Co., Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 35000 |
|
Inquiry |

LCSC
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Tech | I2C MSOP-8 Real-time Clocks (RTC) ROHS | 92 |
|
Buy |

Chips Pulse Industry Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Tech | Purchase Online. Ship Immediately. MSOP-8 Pre-ordered MCUs RoHS | 62 |
|
Buy |

ICSOSO Electronics Company Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip | Microchip MCP7940M-I/MS; Real Time Clock; 64B RAM Serial-I2C; 8-Pin MSOP | 7791 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 487 |
|
Inquiry |

Fly-Wing Technology (HK) Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 8-TSSOP 8-MSOP (0.118 3.00mm Width) MCP7940M e3 Alarm Leap Year Square Wave Output SRAM rtc clock circuit 1.8V~5.5V 1muA @ 5.5V 3mm -40C~85C | 15054 |
|
Buy |

Axis Part Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | New Original,COC,ISO9001 | 8500 |
|
Inquiry |

Win Source
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||
---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 15045 |
|
Buy |

DGT Technology (HK) Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Roving Networks / Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 10000 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8MSOP | 1389 |
|
Inquiry |

Dechoele Technology
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 8240 |
|
Inquiry |

Hong Kong Brave Electronics
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 45696 |
|
Inquiry |

Shenzhen Shengyu Electronics Tech Limited.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip | IC RTC CLK/CALENDAR I2C 8MSOP | 17510 |
|
Inquiry |

KaiLiYuan Electronic Technology (ShenZhen) Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP ; DC:21+ ; 8-MSOP | 111 |
|
Inquiry | |
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8MSOP ; DC:23+ | 20910 |
|
Inquiry |

LIXINC Electronics Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | Brand new and original/respond online to quote. | 9244 |
|
Inquiry |

Lanka Micro Electronic Co.,Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 575 |
|
Buy |

Cytech Systems Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | Available, Contact us | 500 |
|
Inquiry |

Depu Electronics
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8MSOP | 20910 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | DC:Active ; - | 783 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip | Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118", 3.00mm Width | In-Stock |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | MICROCHIP | MSOP-8 ; DC:12+ | 295 |
|
Inquiry |

Shenzhen Yuanxinai e-commerce Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology |
|
Inquiry |

Unicom Electronics co.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | MICROCHIP | shipping today | 7988 |
|
Inquiry |

GlobalTek Components
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940MIMS | MICROCHIP | OEM/CM QUOTES ONLY | NO BROKERS | 1170 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-IMS | MICROCHIP | 700 |
|
Inquiry |

Nexxon, Inc. (USA)
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940MIMS | MICROCHIP | In Stock |
|
Inquiry | ||
MCP7940M-I/MS | Maxim Integrated Products | In Stock |
|
Inquiry | ||
MCP7940M-I/MS | Microchip Technology | In Stock |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | MICROCHIP | DC:22+ | 8500 |
|
Inquiry |

RX Electronics Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Micrel / Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP Clock/Timing - Real Time Clocks
|
4685 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Micrel / Microchip Technology | The parts are in stock | 9938 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | MICROCHIP | Original stock,24-hour delivery | 1924 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | Real Time Clock I2C RTCC 64B SRAM No VBAT | in stock |
|
Inquiry | |
MCP7940M-I/MS | Microchip Technology | Real Time Clock I2C RTCC 64B SRAM No VBAT | in stock |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 0 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940MI/MS
sku #: MCP7940MIMS
|
MICROCHIP | 1050 |
|
Inquiry |

Farnell element14
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS
sku #: 2098889
|
Microchip Technology | Microchip Technology Technology - Rtc, I2C, 64Bytes Sram, 8Msop - Mcp7940M-I/Ms |Microchip Technology Technology MCP7940M-I/MS | in stock |
|
Buy |

OnlineComponents
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip Technology | Real Time Clock Serial - 64byte Clock/Calendar/Alarm Automotive 8-Pin MSOP - Tube | 1000 |
|
Buy |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
MCP7940M-I/MS | Microchip | DC:18+ | 40000 |
|
Inquiry |
See Also:
MCP79400-I/MS
MCP79401-I/MS
MCP79402-I/MS
MCP7940N-I/MS
MCP7940MT-I/MS
MCP79400T-I/MS
MCP79412-I/MS
MCP79410-I/MS
MCP79410T-I/MS
MCP7940M-I/ST
MCP7940N-IMS
MCP7940M-I/SN
MCP79411-I/MS
MCP79402T-I/MS
MCP79401T-I/MS
MCP7940M-I/P
MCP7940NT-I/MS
MCP7940N-E/MS
MCP79400-I/SN
MCP7940N-I/ST
MCP7940N-I/SN
MCP7940N-I/P
MCP79400-I/MNY
MCP7940MT-I/MNY
MCP7940NT-IMS
MCP79520T-I/MS
MCP79401-I/MNY
MCP79511-I/MS
MCP7940NT-E/MS
MCP79402-I/ST
MCP79521-I/MS
MCP79401-I/SN
MCP79401-I/ST
MCP79400-I/ST
MCP79510T-I/MS
MCP79522-I/MS
MCP79411T-I/MS
MCP79412T-I/MS
MCP79512-I/MS
MCP79520-I/MS
MCP7940MT-I/ST
MCP79510-I/MS
MCP7940MT-I/SN
MCP79402-I/SN
MCP79410-I/MNY
MCP79402T-I/MNY
MCP79402T-I/SN
MCP79410T-I/MNY
MCP7940NT-I/SN
More »