Overview
The M95640-DWDW4TP/K is an automotive-grade 64-Kbit serial SPI bus EEPROM produced by STMicroelectronics. This device is designed for high-speed data storage and retrieval, making it suitable for various automotive and industrial applications. It features a robust SPI interface, high-speed clock frequency, and advanced data protection mechanisms.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Capacity | 64 Kbit (8 Kbytes) |
| Page Size | 32 bytes |
| Supply Voltage | 2.5 V to 5.5 V (M95640-W), 1.8 V to 5.5 V (M95640-R), 1.7 V to 5.5 V (M95640-DF) |
| Operating Temperature | -40 °C to +85 °C |
| Clock Frequency | Up to 20 MHz |
| Write Cycle Time | Byte and page write within 5 ms |
| Data Retention | More than 200 years |
| Write Cycles | More than 4 million |
| Package Options | SO8, TSSOP8, UFDFPN8, WLCSP |
Key Features
- SPI Interface: Compatible with the Serial Peripheral Interface (SPI) bus, supporting clock frequencies up to 20 MHz.
- High-Speed Write: Byte and page write cycles completed within 5 ms.
- Data Protection: Advanced data protection mechanisms including block protect bits, write protect signal, and error correction code (ECC x 4) logic.
- Identification Page: An additional 32-byte identification page that can be written and permanently locked in read-only mode.
- ESD Protection: Enhanced ESD protection for robust operation in harsh environments.
- Low Power Consumption: Active and standby power modes to minimize power consumption.
Applications
- Automotive Systems: Suitable for various automotive applications requiring reliable and high-speed data storage, such as vehicle control units, infotainment systems, and safety systems.
- Industrial Automation: Used in industrial control systems, sensors, and other applications where robust and reliable data storage is essential.
- Consumer Electronics: Can be used in consumer electronics that require secure and high-speed data storage, such as smart home devices and wearables.
Q & A
- What is the memory capacity of the M95640-DWDW4TP/K?
The memory capacity is 64 Kbit (8 Kbytes).
- What are the supported supply voltage ranges for the M95640-DWDW4TP/K?
The device supports supply voltages from 2.5 V to 5.5 V (M95640-W), 1.8 V to 5.5 V (M95640-R), and 1.7 V to 5.5 V (M95640-DF).
- What is the maximum clock frequency supported by the M95640-DWDW4TP/K?
The device supports clock frequencies up to 20 MHz.
- How long does a write cycle take for the M95640-DWDW4TP/K?
Byte and page write cycles are completed within 5 ms.
- What is the data retention period for the M95640-DWDW4TP/K?
The data retention period is more than 200 years.
- How many write cycles can the M95640-DWDW4TP/K endure?
The device can endure more than 4 million write cycles.
- What types of packages are available for the M95640-DWDW4TP/K?
The device is available in SO8, TSSOP8, UFDFPN8, and WLCSP packages.
- Does the M95640-DWDW4TP/K have any additional data protection features?
Yes, it includes block protect bits, a write protect signal, and error correction code (ECC x 4) logic.
- Can the identification page be permanently locked in read-only mode?
Yes, the 32-byte identification page can be written and permanently locked in read-only mode.
- What is the operating temperature range for the M95640-DWDW4TP/K?
The operating temperature range is from -40 °C to +85 °C.
