Overview
The M95320-MN3/B is an Automotive 32-Kbit serial SPI bus EEPROM produced by STMicroelectronics. This device is designed for use in automotive applications and is compliant with the Automotive standard AEC-Q100 Grade 1. It features a memory array of 32 Kb (4 Kbytes) organized as 4096 x 8 bits, accessible through the SPI bus. The device operates over a wide temperature range from -40°C to +125°C and supports high-speed clock frequencies up to 10 MHz.
Key Specifications
| Specification | Value |
|---|---|
| Memory Capacity | 32 Kb (4 Kbytes) |
| Page Size | 32 bytes |
| Write Time | Byte Write: 5 ms, Page Write: 5 ms |
| Write Protect | Quarter, half or whole memory array |
| Supply Voltage | 4.5 V to 5.5 V (M95320), 2.5 V to 5.5 V (M95320-W) |
| Operating Temperature Range | -40°C to +125°C |
| High-speed Clock | Up to 10 MHz |
| ESD Protection | Enhanced ESD protection |
| Write Cycles | More than 1 million |
| Data Retention | More than 40 years |
| Packages | SO8 (MN), TSSOP8 (DW), RoHS compliant and halogen-free (ECOPACK®) |
Key Features
- Compatible with the Serial Peripheral Interface (SPI) bus.
- High-speed clock up to 10 MHz.
- Write Protect: quarter, half or whole memory array.
- Enhanced ESD protection.
- More than 1 million Write cycles and more than 40-year data retention.
- Supports SPI modes CPOL=0, CPHA=0 and CPOL=1, CPHA=1.
- Hold (HOLD) signal to pause serial communications without deselecting the device.
- Status Register for monitoring and controlling the device.
- Data protection mechanisms including Write Enable Latch (WEL) and Block Protect bits.
Applications
The M95320-MN3/B is designed for use in various automotive applications, including but not limited to:
- Automotive control units.
- Infotainment systems.
- Safety and security systems.
- Telematics and navigation systems.
- Other applications requiring non-volatile memory with high reliability and endurance.
Q & A
- What is the memory capacity of the M95320-MN3/B?
The M95320-MN3/B has a memory capacity of 32 Kb (4 Kbytes), organized as 4096 x 8 bits.
- What is the page size of the M95320-MN3/B?
The page size is 32 bytes.
- What are the write times for the M95320-MN3/B?
The write times are within 5 ms for both byte and page writes.
- What are the supply voltage ranges for the M95320-MN3/B?
The supply voltage ranges are 4.5 V to 5.5 V for M95320 and 2.5 V to 5.5 V for M95320-W.
- What is the operating temperature range of the M95320-MN3/B?
The operating temperature range is from -40°C to +125°C.
- What is the maximum clock frequency supported by the M95320-MN3/B?
The device supports high-speed clock frequencies up to 10 MHz.
- Does the M95320-MN3/B have any data protection mechanisms?
Yes, it includes mechanisms such as Write Enable Latch (WEL) and Block Protect bits.
- How many write cycles can the M95320-MN3/B endure?
The device can endure more than 1 million write cycles.
- What is the data retention period of the M95320-MN3/B?
The data retention period is more than 40 years.
- What packages are available for the M95320-MN3/B?
The device is available in SO8 (MN) and TSSOP8 (DW) packages, which are RoHS compliant and halogen-free (ECOPACK®).
