Overview
The M95320-DRDW3TP/K is an Automotive grade 32 Kbit serial EEPROM device produced by STMicroelectronics. This device operates up to 145°C and is compliant with the very high level of reliability defined by the Automotive standard AEC-Q100 grade 0. It features a simple serial SPI compatible interface that can run up to 20 MHz. The memory array is based on advanced true EEPROM technology, providing 32 Kbit (4 Kbyte) of EEPROM memory organized into 128 pages of 32 bytes each. The device also includes an additional Identification Page for storing sensitive application parameters, which can be permanently locked in read-only mode.
Key Specifications
| Specification | Value |
|---|---|
| Memory Size | 32 Kbit (4 Kbyte) |
| Memory Interface | SPI |
| Clock Frequency | Up to 20 MHz |
| Page Size | 32 bytes |
| Write Protection | Block: 1/4, 1/2 or whole memory |
| Write Cycle Time | Byte Write: 4 ms, Page Write: 4 ms |
| Write Cycle Endurance | 4 million cycles at 25°C, 1.2 million cycles at 85°C, 600k cycles at 125°C, 400k cycles at 145°C |
| Data Retention | 50 years at 125°C, 100 years at 25°C |
| Operating Temperature | Up to 125°C (VCC from 1.7 V to 5.5 V), Up to 145°C (VCC from 2.5 V to 5.5 V) |
| ESD Protection | 4000 V (Human Body Model) |
| Packages | TSSOP-8L, DFN8, SO8 |
| RoHS Compliance | Ecopack2 (RoHS-compliant and halogen-free) |
Key Features
- Compatible with the Serial Peripheral Interface (SPI) bus
- High speed clock frequency: 20 MHz for VCC ≥ 4.5 V, 10 MHz for VCC ≥ 2.5 V, 5 MHz for VCC ≥ 1.7 V
- Schmitt trigger inputs for noise filtering
- Short Write cycle time: Byte Write within 4 ms, Page Write within 4 ms
- Extended temperature and voltage ranges
- Additional Write lockable Page (Identification page)
- Embedded Error Correction Code logic for improved data integrity
Applications
The M95320-DRDW3TP/K is designed for use in automotive and other high-reliability applications where data storage and retrieval are critical. It is suitable for various automotive systems, including those requiring high temperature operation and robust data integrity. Other potential applications include industrial control systems, medical devices, and any environment where reliable non-volatile memory is essential.
Q & A
- What is the memory size of the M95320-DRDW3TP/K?
The memory size is 32 Kbit (4 Kbyte). - What is the interface type of the M95320-DRDW3TP/K?
The interface type is SPI (Serial Peripheral Interface). - What is the maximum clock frequency of the M95320-DRDW3TP/K?
The maximum clock frequency is up to 20 MHz. - What are the operating temperature ranges for the M95320-DRDW3TP/K?
The device operates up to 125°C (VCC from 1.7 V to 5.5 V) and up to 145°C (VCC from 2.5 V to 5.5 V). - What is the write cycle endurance of the M95320-DRDW3TP/K?
The write cycle endurance is 4 million cycles at 25°C, 1.2 million cycles at 85°C, 600k cycles at 125°C, and 400k cycles at 145°C. - How long does the data retention last for the M95320-DRDW3TP/K?
The data retention is 50 years at 125°C and 100 years at 25°C. - What type of ESD protection does the M95320-DRDW3TP/K have?
The device has 4000 V ESD protection (Human Body Model). - What packages are available for the M95320-DRDW3TP/K?
The available packages are TSSOP-8L, DFN8, and SO8. - Is the M95320-DRDW3TP/K RoHS compliant?
Yes, the device is RoHS-compliant and halogen-free (Ecopack2). - What is the purpose of the Identification Page in the M95320-DRDW3TP/K?
The Identification Page can be used to store sensitive application parameters and can be permanently locked in read-only mode.
