The MCP79401 is a battery-backed I¬=C real-time clock/calendar designed for low-power applications. It features a wide operating voltage range of 1.8V to 5.5V and a backup voltage range of 1.3V to 5.5V. The device maintains accurate timekeeping with a typical current consumption of 1.2 ¬µA at 3.3V and 925 nA during battery backup. It supports dual programmable alarms and includes a versatile output pin that can be configured for clock output, alarm output, or general-purpose output. The MCP79401 incorporates 64 bytes of battery-backed SRAM and a 64-bit protected EEPROM area, which is preprogrammed with an EUI-48,Ñ¢ MAC address. The device operates over an industrial temperature range of -40¬8C to +85¬8C and communicates via a 2-wire I¬=C interface with a clock rate of up to 400 kHz. It is available in an 8-lead TSSOP package, making it suitable for space-constrained designs. The MCP79401 is ideal for applications requiring precise timekeeping and low power consumption.
IC RTC CLK/CALENDAR I2C 8-TSSOP
IC RTC CLK/CALENDAR I2C 8TSSOP Product overview: MCP79401-I/ST from Microchip Technology is a Clock and Timing IC for clock generation, timing distribution, synchronization, RF systems, communication hardware, and digital boards. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include clock generator, oscillator, timing, synchronization, Clock and Timing IC, Real Time Clocks ICs. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 690-MCP79401-I/ST can be used for catalog matching and distributor lookup.
"Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-TSSOP (0.173"", 4.40mm Width)"
Manufacturer: Microchip Technology
Win Source Part Number: 1321620-MCP79401-I/S
Category: Integrated Circuits (ICs)>Clock/Timing>R
Packaging: Tube
Type: Clock/Calendar
Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
Standard Package: 100
Mounting: Surface Mount
Memory Size: 64B
Interface: I2C, 2-Wire Serial
Date Format: YY-MM-DD-dd
Voltage - Supply, Battery: 1.3V ~ 5.5V
Current - Timekeeping (Max): 1.2µA (Typ) @ 3.3V
Voltage - Supply: 1.8V ~ 5.5V
Supplier Device Package: 8-TSSOP
Temperature Range - Operating: -40°C ~ 85°C
Case / Package: 8-TSSOP (0.173", 4.40mm Width)
ECCN: EAR99
Fake Threat In the Open Market: 79
MSL Level: 1 (Unlimited)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Other Part Number: MCP79401IST
Base Product Number: MCP79401
RoHS Status: ROHS3 Compliant
IC RTC CLK/CALENDAR I2C 8TSSOP
IC RTC CLK/CALENDAR I2C 8-TSSOP
Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-TSSOP (0.173", 4.40mm Width)
REAL TIME CLOCK/CALENDAR, -40 TO 85DEG C; Date Format:YY-MM-DD-dd; Clock Format:HH:MM:SS; Clock IC Type:Calendar, Clock; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Clock IC Case Style:TSSOP; No. of Pins:8Pins; Product Range:- RoHS Compliant: Yes
| ODG (Origin Data Global) | ERSAELECTRONICS PTE. LTD. | DigiKey | Win Source Electronics | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | Quarktwin Technology Ltd. | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|---|---|
| Product Category | IC Clocks | IC Timers | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks |
| Product Number | MCP79401-I/ST | 690-MCP79401-I/ST | MCP79401-I/ST-ND | 1321620-MCP79401-I/ST | MCP79401-I/ST | MCP79401-I/ST | MCP79401-I/ST | 85R1761 |
| Product Name | Real Time Clocks | Clock and Timing IC | Real Time Clocks | Integrated Circuits (ICs) - Clock/Timing - Real Time Clocks | Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks | Clock/Timing - Real Time Clocks | Real Time Clocks | Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip |
| Device Type | Clock/Calendar; Real Time Clock | Real Time Clock | Real Time Clock | Clock/Calendar; Real Time Clock | Real Time Clock | Real Time Clock | Calendar, Clock; Real Time Clock | |
| Package Type | Surface Mount; Surface Mount | Tube | Surface Mount; TSSOP; "8-TSSOP (0.173"", 4.40mm Width)" | Surface Mount; 8-TSSOP (0.173", 4.40mm Width) | Surface Mount; Surface Mount | Surface Mount; SSOP; 8-TSSOP (0.173\", 4.40mm Width) | TSSOP | |
| Supply Voltage | 1.8 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts | 1.3 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts |
