Overview
The M48T12-150PC1, produced by STMicroelectronics, is a highly integrated non-volatile static RAM and real-time clock solution. This component is part of the M48T02/12 TIMEKEEPER® RAM family, which is pin and function compatible with JEDEC standard 2 Kb x 8 SRAMs and the DS1642. It features a 24-pin, 600 mil DIP CAPHAT™ package that includes a quartz crystal and a long-life lithium button cell, ensuring data and clock functionality for at least 10 years without external power.
This device combines ultra-low power SRAM, a real-time clock, and power-fail control circuitry, making it an ideal solution for applications requiring non-volatile memory and precise timekeeping.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 4.5 to 5.5 | V |
| Ambient Operating Temperature (TA) | 0 to 70 | °C |
| Memory Size | 2 Kb x 8 | |
| Access Time | 150 ns | ns |
| Power-Fail Deselect Voltage (VPFD) | 4.2 to 4.5 V | V |
| Input Leakage Current (ILI) | ±1 | µA |
| Supply Current (ICC) | 80 mA | mA |
| Supply Current (Standby) TTL | 3 mA | mA |
| Package Type | PCDIP24 |
Key Features
- Integrated, ultra-low power SRAM, real-time clock, and power-fail control circuit
- BYTEWIDE™ RAM-like clock access
- BCD coded year, month, day, date, hours, minutes, and seconds
- Typical clock accuracy of ±1 minute a month at 25 °C
- Software controlled clock calibration for high accuracy applications
- Automatic power-fail chip deselect and WRITE protection
- Self-contained battery and crystal in the CAPHAT™ DIP package
- Pin and function compatible with JEDEC standard 2 Kb x 8 SRAMs
- RoHS compliant and lead-free second level interconnect
Applications
The M48T12-150PC1 is suitable for a variety of applications that require non-volatile memory and precise timekeeping, such as:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Data loggers and monitoring systems
- Any system requiring long-term data retention and accurate timekeeping
Q & A
- What is the M48T12-150PC1?
The M48T12-150PC1 is a non-volatile static RAM and real-time clock solution produced by STMicroelectronics.
- What is the memory size of the M48T12-150PC1?
The memory size is 2 Kb x 8.
- What is the typical clock accuracy of the M48T12-150PC1?
The typical clock accuracy is ±1 minute a month at 25 °C.
- How long does the battery last in the M48T12-150PC1?
The battery has sufficient capacity to maintain data and clock functionality for at least 10 years in the absence of power.
- Is the M48T12-150PC1 RoHS compliant?
- What is the operating temperature range of the M48T12-150PC1?
The operating temperature range is 0 to 70 °C.
- What is the access time of the M48T12-150PC1?
The access time is 150 ns.
- How does the power-fail protection work in the M48T12-150PC1?
The device automatically power-fail deselects and write protects itself when the supply voltage falls within the specified VPFD window.
- Can the M48T12-150PC1 be used in place of standard SRAMs?
- What package type does the M48T12-150PC1 come in?
The M48T12-150PC1 comes in a 24-pin, 600 mil DIP CAPHAT™ package.
