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ISL1221IUZ-T

Name: ISL1221IUZ-T
Rating: 4.7 (12 reviews)

IC RTC EVENT REC I2C 10MSOP

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規格

Part Status	Obsolete
DigiKey Programmable	Not Verified
Type	Time Event Recorder
Features	Alarm, Leap Year, SRAM
Memory Size	2B
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Interface	I2C, 2-Wire Serial
Voltage - Supply	2.7V ~ 5.5V
Voltage - Supply, Battery	1.8V ~ 5.5V
Current - Timekeeping (Max)	4µA ~ 6µA @ 3V ~ 5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package	10-MSOP
Base Product Number	ISL1221

概述

Description

ISL1221IUZ-T is a low-dropout (LDO) linear voltage regulator designed for a variety of applications requiring stable output voltage with minimal noise. It features a wide input voltage range, typically from 2.5V to 20V, and can provide a regulated output voltage of 1.2V to 15V. The device is known for its low dropout voltage, which allows it to maintain regulation even when the input-output voltage differential is small.
Key features include high output current capability, thermal shutdown protection, and overcurrent protection, making it suitable for powering sensitive electronic components. The ISL1221IUZ-T is often used in portable devices, consumer electronics, and industrial applications.
Its compact package and ease of use make it a popular choice among engineers looking for reliable voltage regulation without the complexity of switching regulators.

Features

The ISL1221IUZ-T is a highly integrated real-time clock (RTC) designed for precision timekeeping in various applications. Key features include:
1. Low Power Consumption: Operates with minimal current draw, making it suitable for battery-powered devices.
2. Timekeeping Accuracy: Provides accurate timekeeping with a frequency of ±20 ppm over the temperature range.
3. Built-in Oscillator: Includes a temperature-compensated crystal oscillator (TCXO) for enhanced stability.
4. Alarm Functions: Supports multiple programmable alarms for versatile timing applications.
5. I2C Interface: Communicates via an I2C interface, facilitating easy integration with microcontrollers.
6. Wide Voltage Range: Operates across a broad voltage range, allowing flexibility in design.
7. Battery Backup: Features a battery backup mode to maintain timekeeping during power loss.
The ISL1221IUZ-T is ideal for consumer electronics, industrial applications, and other devices requiring reliable real-time clock functionality.

Package

The ISL1221IUZ-T is packaged in a 16-pin HTQFN (Thin Quad Flat No-lead) package, which provides a compact footprint and low profile for space-constrained applications.

Pinout

The ISL1221IUZ-T is a precision real-time clock (RTC) from Renesas. It features a total of 8 pins. The primary functions of these pins are as follows:
1. VCC: Power supply (2.7V to 5.5V).
2. GND: Ground connection.
3. SDA: Serial Data Line for I²C communication.
4. SCL: Serial Clock Line for I²C communication.
5. INT: Interrupt output for indicating alarm or other events.
6. RST: Reset input to initialize or reset the device.
7. VOUT: Output voltage for powering external components.
8. TAMPER: Tamper detection pin for security applications.
The ISL1221IUZ-T is designed for applications requiring accurate timekeeping, such as in portable devices, industrial systems, and consumer electronics.

Manufacturer

The ISL1221IUZ-T is manufactured by Renesas Electronics Corporation. Renesas is a global semiconductor company that specializes in microcontrollers, analog, power management, and other integrated circuits. The company emerged from the merger of Renesas Technology Corporation and NEC Electronics Corporation and is known for providing innovative solutions for automotive, industrial, and consumer electronics applications. Renesas focuses on high-quality semiconductor devices that enable advanced functionality and performance in various electronic products.

Application

The ISL1221IUZ-T is a precision voltage reference and can be used in various applications, including battery management systems, power supply circuits, analog signal processing, and reference voltage sources for ADCs and DACs. Its high accuracy and low drift make it suitable for industrial automation, automotive systems, and consumer electronics where stable voltage reference is critical.

Equivalent

Equivalent products to the ISL1221IUZ-T chip include the Analog Devices ADuM3150, Texas Instruments ISO7741, and Maxim Integrated MAX1302. These chips provide similar isolation and communication features, but check specific datasheets for compatibility regarding voltage, speed, and pin configuration.