Overview
The M95M04-DRDW6TP is a 4-Mbit serial SPI bus EEPROM produced by STMicroelectronics. This device is electrically erasable programmable memory, organized as 524,288 x 8 bits, and is accessed through the SPI bus. It operates with a supply voltage range from 1.8 to 5.5 V and is guaranteed over a temperature range of -40 °C to +85 °C. The M95M04-DRDW6TP features an additional 512-byte identification page that can be used to store sensitive application parameters and can be permanently locked in read-only mode.
Key Specifications
| Specification | Details |
|---|---|
| Memory Capacity | 4 Mbit (512 Kbytes) of EEPROM |
| Page Size | 512 bytes |
| Additional Page | Identification page (512 bytes), lockable in read-only mode |
| Write Time | Byte write: 5 ms, Page write: 5 ms |
| Write Protect | Quarter array, half array, whole memory array |
| Max Clock Frequency | 10 MHz for VCC ≥ 2.5 V, 5 MHz for VCC ≥ 1.8 V |
| Supply Voltage | 1.8 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| ESD Protection | Up to 4 kV in human body model |
| Write Cycles | More than 4 million write cycles |
| Data Retention | More than 40 years |
| Packages | SO8N, TSSOP8, WLCSP |
Key Features
- Compatible with the serial peripheral interface (SPI) bus
- Fast data access and storage through SPI bus with a maximum clock frequency of 10 MHz
- Low power consumption: 2 μA in standby mode, 3 mA during read and write operations at 1.8 V
- Enhanced ESD protection up to 4 kV in human body model
- High endurance: more than 4 million write cycles and more than 40 years of data retention
- Flexible write protection: quarter array, half array, and whole memory array protection
- Additional lockable identification page for sensitive data
Applications
- Data logging applications where high write endurance is required
- Storage of manufacturing traceability, calibration, user settings, error flags, and monitoring data
- Use in evaluation boards such as the X-NUCLEO-EEPRMA2 for external storage needs
- Industrial and automotive systems requiring reliable and durable memory solutions
Q & A
- What is the memory capacity of the M95M04-DRDW6TP?
The M95M04-DRDW6TP has a memory capacity of 4 Mbit (512 Kbytes) of EEPROM.
- What is the maximum clock frequency of the SPI bus for this device?
The maximum clock frequency is 10 MHz for VCC ≥ 2.5 V and 5 MHz for VCC ≥ 1.8 V.
- How long does it take to write a page to the M95M04-DRDW6TP?
The write time for a page is within 5 ms.
- What is the operating temperature range of the M95M04-DRDW6TP?
The device operates over a temperature range of -40 °C to +85 °C.
- What kind of ESD protection does the M95M04-DRDW6TP offer?
The device offers ESD protection up to 4 kV in the human body model.
- How many write cycles can the M95M04-DRDW6TP endure?
The device can endure more than 4 million write cycles.
- What is the data retention period of the M95M04-DRDW6TP?
The data retention period is more than 40 years.
- What types of packages are available for the M95M04-DRDW6TP?
The device is available in SO8N, TSSOP8, and WLCSP packages.
- Can the identification page be locked in read-only mode?
- What are some common applications for the M95M04-DRDW6TP?
