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M48Z19-100PC1 from ST,ST Microelectronics

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M48Z19-100PC1

Manufacturer: ST, STM

CMOS 8K x 8 ZEROPOWER SRAM

Partnumber Manufacturer Quantity Availability
M48Z19-100PC1,M48Z19100PC1 ST, STM 466 In Stock

Description and Introduction

CMOS 8K x 8 ZEROPOWER SRAM The **M48Z19-100PC1** is a non-volatile static RAM (nvSRAM) manufactured by **STMicroelectronics (ST)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Memory Type:** Non-Volatile SRAM (nvSRAM)  
- **Density:** 256 Kbit (32K x 8)  
- **Access Time:** 100 ns  
- **Supply Voltage:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package:** 28-pin DIP (Dual In-line Package)  
- **Data Retention:** 10 years (minimum)  
- **Write Cycle Endurance:** Unlimited (SRAM), 100,000 cycles (EEPROM backup)  

### **Descriptions:**
- Combines SRAM speed with non-volatile EEPROM backup.  
- Automatically saves SRAM data to EEPROM during power loss.  
- Restores data to SRAM upon power-up.  
- No external battery required for data retention.  

### **Features:**
- **Zero Write Time:** No delay when saving data to non-volatile storage.  
- **High-Speed SRAM Access:** 100 ns access time.  
- **Automatic Store & Recall:** Data protection during power interruptions.  
- **Industrial Standard Pinout:** Compatible with JEDEC-standard 28-pin DIP.  
- **Low Power Consumption:** Optimized for power-sensitive applications.  

This device is commonly used in applications requiring fast, non-volatile memory, such as industrial controls, medical devices, and data logging systems.

Application Scenarios & Design Considerations

CMOS 8K x 8 ZEROPOWER SRAM

Alternative Part Number

  • DS1225AD-100+ --: Nonvolatile SRAM module with 8Kx8 organization and 100ns access time, functionally equivalent to the M48Z19 NVRAM and widely used as a drop-in replacement.
  • BQ4011YMA-100 --: Battery-backed nonvolatile SRAM in the same 8Kx8 density with 100ns speed, offering comparable pinout and function for replacement.
  • CY14B101PA-SFXI --: nvSRAM with similar nonvolatile SRAM function and 100ns-class timing, suitable as an alternative when a modern nonvolatile memory solution is acceptable.
  • DS1225AD-150+ --: Nonvolatile SRAM module with 64Kbit capacity and 150ns access time, functionally similar to the M48Z19 NVRAM; different series and manufacturer, widely available and drop-in compatible in most sockets.
  • BQ4011YMA-150 --: Nonvolatile SRAM module with comparable 64Kbit density and battery-backed retention, offering a different naming series and pin-compatible footprint for replacement designs.

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