Overview
The CAS24S128C4ATR, produced by onsemi, is a 128-Kb Serial CMOS EEPROM. It is internally organized as 16,384 words of 8 bits each, featuring a 64-byte page write buffer. This device supports the Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocol, making it versatile for various applications. The EEPROM also includes programmable software write protection, allowing for partial or full memory array protection.
Key Specifications
| Parameter | Value |
|---|---|
| Density | 128 Kb |
| Organization | 16,384 words of 8 bits each |
| Data Transmission Standard | I2C (Standard, Fast, Fast-Plus) |
| Supply Voltage Range | 1.7 V to 5.5 V |
| Page Write Buffer | 64 bytes |
| Write Protection | User programmable block write protection (¼, ½, ¾ or entire EEPROM array) |
| Package Type | WLCSP-4 |
| Temperature Range | -40°C to +85°C |
| Data Retention | 40 years |
| Program/Erase Cycles | 1,000,000 cycles |
| Standby Current | 2 µA |
| Active Current | 2 mA |
| Compliance | Pb-Free, Halogen Free/BFR Free, RoHS Compliant |
Key Features
The CAS24S128C4ATR features several key attributes that make it a reliable and versatile EEPROM solution:
- Low Power CMOS Technology: Ensures low power consumption, making it suitable for battery-powered devices.
- Schmitt Triggers and Noise Suppression Filters: On I2C bus inputs (SCL and SDA) to enhance signal integrity.
- User Programmable Block Write Protection: Allows protection of ¼, ½, ¾ or the entire EEPROM array.
- High Endurance: Supports up to 1,000,000 program/erase cycles.
- Long Data Retention: Data is retained for up to 40 years.
- Industrial Temperature Range: Operates from -40°C to +85°C.
Applications
The CAS24S128C4ATR is suitable for a wide range of applications, including:
- Alarm Systems
- Audio Players
- Automotive Systems
- Cable Modems
- Cellular Phones
- Cordless Phones
- CRT/LCD Monitors
- Digital Still Cameras
- DRAM Modules
- DVD Players
- Graphic Cards
- Hard Disk Drives
- Health Meters
- Industrial Controls
- Internet Phone Handsets
- Memory Modules
- Notebook PC
- Personal Computers
- Printers
- Set Top Box
- Smart Phones
- TV
- Telecommunications
- Two Way Radios
- Video Games
- Video Tape Recorder
- Vending Machines
- Wireless LANs
Q & A
- What is the density of the CAS24S128C4ATR EEPROM?
The CAS24S128C4ATR has a density of 128 Kb, organized as 16,384 words of 8 bits each.
- What I2C protocols does the CAS24S128C4ATR support?
The device supports Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocols.
- What is the supply voltage range for the CAS24S128C4ATR?
The supply voltage range is from 1.7 V to 5.5 V.
- What type of write protection does the CAS24S128C4ATR offer?
The device offers user programmable block write protection, allowing protection of ¼, ½, ¾ or the entire EEPROM array.
- What is the package type of the CAS24S128C4ATR?
The package type is WLCSP-4.
- What is the operating temperature range of the CAS24S128C4ATR?
The device operates from -40°C to +85°C.
- How many program/erase cycles does the CAS24S128C4ATR support?
The device supports up to 1,000,000 program/erase cycles.
- What is the data retention period of the CAS24S128C4ATR?
The data is retained for up to 40 years.
- Is the CAS24S128C4ATR compliant with environmental standards?
Yes, it is Pb-Free, Halogen Free/BFR Free, and RoHS Compliant.
- What are some common applications of the CAS24S128C4ATR?
It is used in various applications including alarm systems, audio players, automotive systems, and more.
- Does the CAS24S128C4ATR have noise suppression features?
Yes, it includes Schmitt Triggers and noise suppression filters on I2C bus inputs (SCL and SDA).
