Overview
The CAT24C32WI-G is a 32-Kb CMOS Serial EEPROM device produced by onsemi. It is internally organized as 4096 words of 8 bits each, providing a robust and reliable solution for non-volatile data storage. The device supports the Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocol, making it versatile for various applications. It features a 32-byte page write buffer and external address pins, allowing up to eight devices to be addressed on the same bus.
Key Specifications
| Parameter | Min | Max | Units |
|---|---|---|---|
| Supply Voltage Range | 1.7 | 5.5 | V |
| Storage Temperature | –65 | +150 | °C |
| Voltage on any Pin with Respect to Ground | –0.5 | +6.5 | V |
| Program/Erase Cycles | 1,000,000 | Cycles | |
| Data Retention | 100 | Years | |
| Clock Frequency (Standard) | 100 | 400 | kHz |
| Clock Frequency (Fast) | 400 | 1,000 | kHz |
| Clock Frequency (Fast-Plus) | 1,000 | kHz |
Key Features
- Supports Standard, Fast, and Fast-Plus I2C Protocol
- 32-byte page write buffer
- Hardware Write Protection for Entire Memory
- Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA)
- Low Power CMOS Technology
- 1,000,000 Program/Erase Cycles
- 100 Year Data Retention
- Industrial and Extended Temperature Range
- Power-On Reset (POR) circuitry to protect against 'brown-out' failure
Applications
The CAT24C32WI-G is suitable for a wide range of applications requiring non-volatile data storage, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- IoT devices
Q & A
- What is the storage capacity of the CAT24C32WI-G?
The CAT24C32WI-G has a storage capacity of 32 Kb, organized as 4096 words of 8 bits each.
- What I2C protocols does the CAT24C32WI-G 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 CAT24C32WI-G?
The supply voltage range is from 1.7 V to 5.5 V.
- How many program/erase cycles can the CAT24C32WI-G endure?
The device can endure up to 1,000,000 program/erase cycles.
- What is the data retention period of the CAT24C32WI-G?
The data retention period is 100 years.
- Does the CAT24C32WI-G have hardware write protection?
- How many devices can be addressed on the same bus?
Up to eight devices can be addressed on the same bus using the external address pins.
- What is the purpose of the Power-On Reset (POR) circuitry?
The POR circuitry protects the internal logic against powering up in the wrong state and prevents 'brown-out' failure.
- What types of packages are available for the CAT24C32WI-G?
The device is available in various packages including PDIP, SOIC, TSSOP, TDFN, UDFN, and TSOP.
- How does the device handle noise on the I2C bus?
The device features Schmitt Triggers and Noise Suppression Filters on the I2C bus inputs (SCL and SDA) to improve noise immunity.
