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M40Z300WMH1 from STM,ST Microelectronics

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M40Z300WMH1

Manufacturer: STM, ST

NVRAM CONTROLLER for up to EIGHT LPSRAM

Partnumber Manufacturer Quantity Availability
M40Z300WMH1 STM, ST 106 In Stock

Description and Introduction

NVRAM CONTROLLER for up to EIGHT LPSRAM The M40Z300WMH1 is a 3.3V, 4Mbit (512K x 8) serial SRAM manufactured by STMicroelectronics.  

### **Specifications:**  
- **Memory Size:** 4Mbit (512K x 8)  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Voltage Supply:** 3.3V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Standby Current:** Low power consumption in standby mode  
- **High-Speed Clock Frequency:** Supports fast data transfer rates  
- **Data Retention:** Ensures data integrity during power cycles  

### **Features:**  
- **Serial SRAM:** Provides non-volatile storage with fast read/write operations.  
- **SPI-Compatible:** Easy integration with microcontrollers and other SPI-based systems.  
- **Low Power Consumption:** Optimized for battery-powered applications.  
- **Industrial Temperature Range:** Suitable for harsh environments.  
- **Compact Package:** Available in industry-standard packaging for space-constrained designs.  

This device is designed for applications requiring fast, reliable, and low-power memory storage, such as industrial systems, automotive electronics, and embedded computing.  

(Note: Always refer to the official STMicroelectronics datasheet for precise technical details.)

Application Scenarios & Design Considerations

NVRAM CONTROLLER for up to EIGHT LPSRAM

Alternative Part Number

  • DS1307Z+ --: I2C real-time clock with battery-backed SRAM in an SOIC package, functionally similar to the M40Z300 timekeeper/SRAM device and widely available.
  • PCF8563T --: Low-power I2C real-time clock/calendar in SOIC-8, a common drop-in style alternative for timekeeping functions with battery backup support.
  • BQ32000DR --: I2C real-time clock with integrated trickle-charge backup in SOIC-8, suitable replacement for timekeeping and non-volatile time storage needs.
  • DS1338Z-33+ --: I2C real-time clock with integrated crystal and battery-backed SRAM, functionally similar to the M40Z300 timekeeper/NVRAM device and available in a comparable SOIC package.
  • BQ3285S --: Real-time clock with embedded battery-backed SRAM, a common replacement for ST timekeeper NVRAM parts in legacy designs.
  • M48T35Y-70MH1 --: TIMEKEEPER-style NVRAM with integrated battery and RTC in a similar package, offering equivalent non-volatile memory and clock functionality.

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