ISL12057IUZ

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ISL12057IUZ

+BOM

REAL TIME CLOCK, VOLATILE, CMOS

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Thông số kỹ thuật

thuộc tính Giá trị
Package 1
Series Bulk
Type Active
Features Clock/Calendar
MemorySize Alarm, Leap Year
DateFormat HH:MM:SS (12/24 hr)
Interface YY-MM-DD-dd
Voltage-Supply I²C, 2-Wire Serial
Voltage-SupplyBattery 1.8V ~ 3.6V
OperatingTemperature 0.65µA @ 1.8V
MountingType -40°C ~ 85°C
Package/Case Surface Mount

Tổng quan

Description

The ISL12057IUZ is a low-power, I²C-interfaced real-time clock (RTC) with integrated crystal compensation, battery backup, and timestamp logging. Key features include:
- Precision Timekeeping: ±5ppm accuracy (0°C to +50°C) with automatic crystal drift compensation.
- Ultra-Low Power: 400nA (typ) in battery mode, extending backup life.
- I²C Interface: Supports standard (100kHz) and fast (400kHz) modes.
- Battery Backup: Operates down to 1.8V, ensuring time retention during power loss.
- Alarms & Timestamp Logging: Two programmable alarms and power-fail timestamp capture.
- Wide Temp Range: -40°C to +85°C, suitable for industrial applications.
Ideal for smart meters, IoT devices, and industrial systems, the ISL12057IUZ combines accuracy, low power, and robust features in a 20-TSSOP package.

Equivalent

Equivalent products to the ISL12057IUZ (RTC with EEPROM) include:
- DS3231 (Maxim Integrated) - Higher accuracy, no EEPROM.
- MCP7940N (Microchip) - Similar RTC + EEPROM, I²C interface.
- PCF85263A (NXP) - Low-power RTC, no EEPROM.
- RV-8803-C7 (Micro Crystal) - Ultra-low power, no EEPROM.
For exact replacements with EEPROM, consider MCP7940N or ISL12057 variants from Renesas. Check specs for compatibility.

Features

The ISL12057IUZ is a low-power I²C real-time clock (RTC) with integrated crystal compensation, battery backup, and timestamping. Key features:
- Ultra-low power (400nA backup current)
- I²C interface (400kHz max)
- Battery backup (1.8V–5.5V operation)
- Automatic leap-year correction
- Alarms & timestamps (two programmable alarms)
- Digital trimming (±30ppm correction)
- 128B user NV SRAM (battery-backed)
- Industrial temp range (-40°C to +85°C)
- Small 8-lead TDFN package
Ideal for battery-powered, portable, and embedded systems.

Manufacturer

The ISL12057IUZ is manufactured by Renesas Electronics, a leading global semiconductor company specializing in advanced ICs for automotive, industrial, IoT, and infrastructure applications. Renesas is known for its high-performance analog, power, and embedded solutions, formed through mergers (e.g., Hitachi, Mitsubishi, NEC) and acquisitions (e.g., Intersil, IDT). The ISL12057IUZ is a real-time clock (RTC) device, reflecting Renesas' expertise in precision timing and mixed-signal technology.

Application

The ISL12057IUZ is a low-power RTC (Real-Time Clock) with battery backup, widely used in:
- Consumer Electronics: Smartwatches, wearables, IoT devices.
- Industrial Systems: Automation, data loggers, sensors.
- Medical Devices: Portable health monitors, diagnostic equipment.
- Automotive: Infotainment, telematics, black boxes.
- Networking & Telecom: Routers, servers, base stations.
It provides accurate timekeeping, alarms, and timestamping with minimal power consumption, making it ideal for battery-powered and embedded applications.

Package

The ISL12057IUZ is available in an 8-lead TSSOP (Thin Shrink Small Outline Package). This package type is compact, surface-mount, and suitable for space-constrained applications. It measures 3mm x 4.4mm with a 0.65mm lead pitch. Ideal for integrating into small PCB designs while maintaining reliable performance.

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