Overview
The M48Z58-70PC1 is a non-volatile static RAM (SRAM) produced by STMicroelectronics. This device is part of the ZEROPOWER® RAM series, integrating an 8 kbit x 8 SRAM, power-fail deselect circuitry, and battery control logic on a single die. It is designed to provide a highly integrated battery-backed memory solution, ensuring data retention during power failures. The M48Z58-70PC1 is available in a 28-pin PDIP package and is pin and function compatible with JEDEC standard 8 kbit x 8 SRAMs, making it a versatile option for various memory applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 8 kbit x 8 | - |
| Supply Voltage (VCC) | 4.75 to 5.5 V | V |
| Power-Fail Deselect Voltage (VPFD) | 4.5 to 4.75 V | V |
| Battery Backup Switchover Voltage (VSO) | 3.0 V | V |
| Ambient Operating Temperature (TA) | 0 to 70 °C | °C |
| READ Cycle Time | 70 ns | ns |
| Supply Current (ICC) | 50 mA | mA |
| Standby Supply Current (ICC1/ICC2) | 3 mA | mA |
| Data Retention Time | 10 Years | Years |
| Package Type | PDIP 28.7 | - |
Key Features
- Integrated ultra-low power SRAM, power-fail control circuit, and battery.
- Automatic power-fail chip deselect and WRITE protection.
- Self-contained battery in the CAPHAT™ DIP package.
- SOIC package with direct connection for a separate SNAPHAT® top containing the battery.
- Pin and function compatible with JEDEC standard 8 kbit x 8 SRAMs.
- RoHS compliant and lead-free second level interconnect.
- WRITE cycle time equals READ cycle time.
- WRITE protect voltages to ensure data security during low VCC conditions.
Applications
The M48Z58-70PC1 is suitable for a wide range of applications where non-volatile memory is required, including:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Any system requiring reliable data retention during power failures.
Q & A
- What is the memory size of the M48Z58-70PC1?
The M48Z58-70PC1 has a memory size of 8 kbit x 8.
- What is the supply voltage range for the M48Z58-70PC1?
The supply voltage range is 4.75 to 5.5 V.
- What is the power-fail deselect voltage range for the M48Z58-70PC1?
The power-fail deselect voltage range is 4.5 to 4.75 V.
- How long does the battery backup last in the M48Z58-70PC1?
The battery backup is designed to last for 10 years.
- What package types are available for the M48Z58-70PC1?
The device is available in a 28-pin PDIP package and a 28-pin SOIC package with a separate SNAPHAT® top.
- Is the M48Z58-70PC1 RoHS compliant?
- How does the power-fail control circuit work in the M48Z58-70PC1?
The power-fail control circuit constantly monitors the supply voltage and write protects the SRAM when VCC falls below the specified threshold, ensuring data security.
- What is the READ cycle time of the M48Z58-70PC1?
The READ cycle time is 70 ns.
- Is the M48Z58-70PC1 compatible with other SRAM standards?
- How is the battery package handled for the SOIC version?
The battery package (SNAPHAT) is mounted on top of the SOIC package after the surface mount process to prevent potential battery damage.
