規格
| 屬性 | 價值 |
| Package / Case | 1 |
| Series | Bulk |
| Type | Active |
| Features | Clock/Calendar |
| Memory Size | Alarm, Leap Year |
| Date Format | HH:MM:SS (12/24 hr) |
| Interface | YY-MM-DD-dd |
| Voltage - Supply | I²C, 2-Wire Serial |
| Voltage - Supply, Battery | 1.8V ~ 3.6V |
| Operating Temperature | 0.65µA @ 1.8V |
| Mounting Type | -40°C ~ 85°C |
概述
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.
- 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.
- 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.
- 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.
- 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.
