RX-8035SAAA0 PURE SN

Overview

The RX-8035SAAA0 PURE SN is a Real Time Clock (RTC) IC from the Epson RX-8035SA series. It features an I2C bus interface and operates within a supply voltage range of 1.7 V to 5.5 V. The device supports calendar functions including leap year compensation up to the year 2099 and provides alarm capabilities. It is housed in a 14-SOP package and is designed for industrial temperature ranges, typically operating between -40°C and +85°C. The component integrates a built-in crystal oscillator and offers high accuracy with low power consumption suitable for battery-backed applications.

Feature Summary

• I2C Bus Interface: Standard two-wire serial communication protocol for data exchange.
• Calendar Functionality: Automatic leap year compensation valid until 2099.
• Wide Voltage Operation: Supports 1.7 V to 5.5 V supply voltage range.
• Integrated Crystal: Built-in 32.768 kHz crystal unit for precise timekeeping.

Applications

• Industrial control systems requiring precise time synchronization.
• Battery-powered portable devices needing low-power RTC solutions.
• Automotive electronics operating in extended temperature environments.
• Smart meters and utility monitoring equipment.

Procurement Notes

Verify the specific suffix 'A0' against the manufacturer's current datasheet to confirm pinout and electrical characteristics, as suffixes often denote packaging or specific variant details. Ensure compatibility with the target system's I2C voltage levels. Check for RoHS compliance status if required by project specifications. Confirm availability through authorized distributors due to potential supply chain fluctuations.

Selection Notes

Select this component when an I2C-connected RTC with integrated crystal is required. Compare accuracy specifications against application needs; verify if the standard accuracy meets timing requirements or if higher precision variants are necessary. Consider the SOP-14 package size for PCB layout constraints. Evaluate power consumption figures relative to the available battery capacity in the design.

Part Context

This part belongs to the Epson RX-8035SA family of real-time clocks. The series is known for integrating a crystal resonator directly into the package, reducing board space and assembly complexity. The RX-8035SA models generally offer robust performance in harsh environments, making them suitable for automotive and industrial sectors where reliability is critical.

Replacement Considerations

Direct replacements may include other Epson RTCs with similar I2C interfaces and package types, such as the RX-8025SA series, provided pinouts and electrical parameters match. Verify functional equivalence regarding alarm features and calendar logic before substitution. Cross-reference with competitor parts only if pin-to-pin compatibility and electrical specs are confirmed identical.