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.
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 8-TSSOP
"Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-TSSOP (0.173"", 4.40mm Width)"
IC RTC CLK/CALENDAR I2C 8-TSSOP
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
Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-TSSOP (0.173", 4.40mm Width)
IC RTC CLK/CALENDAR I2C 8TSSOP
| Win Source Electronics | ODG (Origin Data Global) | DigiKey | Lingto Electronic Limited | Newark, An Avnet Company | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks |
| Product Number | 1321620-MCP79401-I/ST | MCP79401-I/ST | MCP79401-I/ST-ND | MCP79401-I/ST | 85R1761 | MCP79401-I/ST | MCP79401-I/ST |
| Product Name | Integrated Circuits (ICs) - Clock/Timing - Real Time Clocks | Real Time Clocks | Real Time Clocks | Clock/Timing - Real Time Clocks | Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip | Real Time Clocks | Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks |
| Device Type | Real Time Clock | Clock/Calendar; Real Time Clock | Real Time Clock | Real Time Clock | Calendar, Clock; Real Time Clock | Real Time Clock | Clock/Calendar; Real Time Clock |
| Package Type | Surface Mount; 8-TSSOP (0.173", 4.40mm Width) | Surface Mount; Surface Mount | Surface Mount; TSSOP; "8-TSSOP (0.173"", 4.40mm Width)" | TSSOP | Surface Mount; SSOP; 8-TSSOP (0.173\", 4.40mm Width) | Surface Mount; Surface Mount | |
| Supply Voltage | 1.3 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts |
