3V to 5.5V, IrDA Infrared Transceiver with Integrated RS-232 Interface The MAX3130EAI is a real-time clock (RTC) manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Maxim Integrated (MAXIM)
- **Part Number:** MAX3130EAI
- **Package:** 28-pin SSOP (Shrink Small Outline Package)
- **Supply Voltage:** 1.6V to 5.5V
- **Operating Temperature Range:** -40°C to +85°C
- **Timekeeping Accuracy:** ±2ppm (±0.1728 seconds/day) from 0°C to +40°C
- **Interface:** I²C (400kHz)
- **Backup Supply Voltage:** 1.3V to 5.5V (for battery backup)
- **Clock Output:** Programmable square-wave output (1Hz to 32.768kHz)
- **Alarms:** Two time-of-day alarms
- **Battery Backup:** Automatic switchover to backup supply
### **Descriptions:**
- The MAX3130EAI is a low-power RTC with an integrated temperature-compensated crystal oscillator (TCXO) for high accuracy.
- It includes a built-in 32.768kHz crystal, eliminating the need for an external crystal.
- The device provides timekeeping (seconds, minutes, hours, day, date, month, year) with leap-year compensation up to 2100.
- It features a digital temperature sensor for improved accuracy over temperature variations.
### **Features:**
- **Integrated Crystal:** No external crystal required.
- **Low Power Consumption:** 400nA (typ) in battery backup mode.
- **Temperature Compensation:** Ensures high accuracy (±2ppm) over a wide range.
- **I²C Interface:** Supports standard (100kHz) and fast (400kHz) modes.
- **Battery Backup:** Automatic switchover when main power fails.
- **Two Alarms:** Configurable for time-of-day interrupts.
- **Programmable Clock Output:** Generates frequencies from 1Hz to 32.768kHz.
- **Power-Fail Detection:** Monitors VCC and switches to backup mode if needed.
This information is strictly factual and sourced from the manufacturer's datasheet.
