Overview
The AT24C02D-SSHM-B is a 2Kb serial EEPROM (Electrically Erasable Programmable Read-Only Memory) produced by Microchip Technology. This device operates as a slave on an I2C-compatible two-wire digital serial interface, allowing for communication with a host controller. It is designed for applications requiring non-volatile memory storage and is known for its high reliability and low power consumption.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Memory Size | 2Kb (256 x 8 bits) | 256 x 8 bits |
| Voltage Range | Supply voltage | 1.7V to 3.6V |
| Operating Temperature | Industrial temperature range | -40°C to +85°C |
| Clock Frequency | I2C clock frequency | 100 kHz (Standard), 400 kHz (Fast), 1 MHz (Fast Mode Plus) |
| Write Cycle Time | Maximum write cycle time | 5 ms |
| Access Time | Random read access time | 4.5 µs |
| Active Current | Maximum active current | 1 mA |
| Standby Current | Maximum standby current | 0.8 µA |
| Endurance | Write cycles | 1,000,000 cycles |
| Data Retention | Data retention time | 100 years |
| ESD Protection | Electrostatic discharge protection | > 4,000V |
Key Features
- I2C-Compatible Interface: Supports standard (100 kHz), fast (400 kHz), and fast mode plus (1 MHz) I2C protocols.
- Low Power Consumption: Ultra-low active current (1 mA maximum) and standby current (0.8 µA maximum).
- High Reliability: Endurance of 1,000,000 write cycles and data retention of 100 years.
- Write Protection: Hardware write-protect pin for full array protection.
- Noise Suppression: Integrated Schmitt Triggers and spike suppression filters on SCL and SDA pins.
- Green Package Options: Lead-free, halide-free, and RoHS compliant packages available.
Applications
- Industrial Automation: Suitable for industrial control systems, sensors, and actuators due to its industrial temperature range and high reliability.
- Consumer Electronics: Used in various consumer devices such as remote controls, audio equipment, and other applications requiring non-volatile memory.
- Medical Devices: Applicable in medical devices that require low power consumption and high data retention.
- Automotive Systems: Can be used in automotive systems for configuration data storage and other non-volatile memory needs.
Q & A
- What is the memory size of the AT24C02D-SSHM-B?
The AT24C02D-SSHM-B has a memory size of 2Kb, organized as 256 x 8 bits.
- What are the operating voltage and temperature ranges for this device?
The device operates within a voltage range of 1.7V to 3.6V and an industrial temperature range of -40°C to +85°C.
- What are the supported I2C clock frequencies?
The AT24C02D-SSHM-B supports I2C clock frequencies of 100 kHz (standard), 400 kHz (fast), and 1 MHz (fast mode plus).
- How long does a write cycle take?
A write cycle takes a maximum of 5 ms.
- What is the maximum active current consumption?
The maximum active current consumption is 1 mA.
- Does the device have any built-in noise suppression features?
Yes, the device includes integrated Schmitt Triggers and spike suppression filters on the SCL and SDA pins.
- What is the endurance of the AT24C02D-SSHM-B?
The device has an endurance of 1,000,000 write cycles.
- How long does the data retain in the device?
The data retention time is 100 years.
- Is the AT24C02D-SSHM-B RoHS compliant?
Yes, the device is RoHS compliant and also offers lead-free and halide-free package options.
- What is the purpose of the write-protect pin?
The write-protect pin provides hardware protection for the full array, preventing unintended writes.
