The MCP79400T-I/ST is a battery-backed I¬=C real-time clock/calendar designed for precise timekeeping in various applications. It features a comprehensive timekeeping capability, tracking hours, minutes, seconds, day of the week, day, month, and year, with leap year compensation up to the year 2399. The device supports both 12-hour and 24-hour formats and is optimized for use with 32.768 kHz crystals. This part includes on-chip digital trimming for frequency calibration, dual programmable alarms, and a versatile output pin that can be configured for clock output, alarm output, or general-purpose output. It operates within a wide voltage range of 1.8V to 5.5V, with a low typical timekeeping current of 1.2 ¬µA at 3.3V and 925 nA during battery backup mode. The automatic switchover to battery backup ensures continuous operation during power interruptions. Additionally, the MCP79400T-I/ST includes 64 bytes of battery-backed SRAM and a protected EEPROM area, which requires a robust write unlock sequence for data integrity. The device is compatible with I¬=C communication at clock rates up to 400 kHz and operates within an industrial temperature range of -40¬8C to +85¬8C. It is available in multiple package types, including 8-lead SOIC, MSOP, TSSOP, and 2x3 TDFN, making it suitable for various design requirements.
Manufacturer: Microchip Technology
Win Source Part Number: 926738-MCP79400T-I/S
Operating Temperature Range: -40°C ~ 85°C
Features: Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-TSSOP (0.173", 4.40mm Width)
Package: 8-TSSOP (0.173", 4.40mm Width)
Package: Reel - TR
Mounting: Surface Mount
Family Name: MCP79400
Categories: Integrated Circuits (ICs)
Case / Package: 8-TSSOP
ECCN: EAR99
Popularity: High
Fake Threat In the Open Market: 51 pct.
Supply and Demand Status: Balance
Quantity per package: 2500
MSL Level: 1 (Unlimited)
Estimated Pruduction Lead Time: 51 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
IC RTC CLK/CALENDAR I2C 8TSSOP Product overview: MCP79400T-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-MCP79400T-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)"
IC RTC CLK/CALENDAR I2C 8TSSOP
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
| Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Shenzhen Shengyu Electronics Technology Limited | Quarktwin Technology Ltd. | Lingto Electronic Limited | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Clocks | IC Timers | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks |
| Product Number | 926738-MCP79400T-I/ST | 690-MCP79400T-I/ST | MCP79400T-I/ST-ND | MCP79400T-I/ST | MCP79400T-I/ST | MCP79400T-I/ST | 85R1758 |
| Product Name | Clock/Timing - Clock/Timing - Real Time Clocks - MCP79400T-I/ST | Clock and Timing IC | Real Time Clocks | Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks | Real Time Clocks | Clock/Timing - Real Time Clocks | Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip |
| Device Type | 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; 8-TSSOP | Tape & Reel (TR) | Surface Mount; TSSOP; "8-TSSOP (0.173"", 4.40mm Width)" | Surface Mount; Surface Mount | Surface Mount; SSOP; 8-TSSOP (0.173\", 4.40mm Width) | TSSOP | |
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 C (-40 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) |
