Overview
The M48T18-100PC1 is a part of the M48T18 series of Battery Backed SRAMs produced by STMicroelectronics. This integrated circuit combines an 8 K x 8 non-volatile static RAM with a real-time clock, making it a highly integrated solution for applications requiring both memory and timekeeping functions. The device is pin and function compatible with the DS1643 and JEDEC standard 8 K x 8 SRAMs, ensuring ease of integration into various systems.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Type of Integrated Circuit | RTC circuit |
| Memory Organization | 8 K x 8 bits |
| Memory Capacity | 64 Kb SRAM |
| Access Time | 100 ns |
| Operating Voltage | 4.5 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C |
| Mounting Method | Through Hole |
| Package Style | PCDIP-28 |
| Clock Format | HH:MM:SS (24h) |
| Date Format | YY-MM-DD-dd |
| Time Keeping Current | 3 mA |
Key Features
- Integrated ultra-low power SRAM, real-time clock, power-fail control circuit, and battery.
- 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.
- Automatic power-fail chip deselect and write protection.
- Software controlled clock calibration for high accuracy applications.
- Self-contained battery and crystal in the CAPHAT™ DIP package.
- SOIC package provides direct connection for a SNAPHAT® top which contains the battery and crystal.
- Pin and function compatible with DS1643 and JEDEC standard 8 K x 8 SRAMs.
- RoHS compliant – Lead-free second level interconnect.
Applications
The M48T18-100PC1 is suitable for a wide range of applications that require both non-volatile memory and real-time clock functions. These include:
- Industrial control systems.
- Medical devices.
- Automated systems in various industries.
- Data logging and monitoring systems.
- Any application requiring precise timekeeping and battery-backed memory.
Q & A
- What is the M48T18-100PC1?
The M48T18-100PC1 is a Battery Backed SRAM with a real-time clock, produced by STMicroelectronics.
- What is the memory organization of the M48T18-100PC1?
The memory organization is 8 K x 8 bits.
- What is the operating voltage range of the M48T18-100PC1?
The operating voltage range is 4.5 V to 5.5 V.
- What is the typical clock accuracy of the M48T18-100PC1?
The typical clock accuracy is ±1 minute a month at 25 °C.
- Does the M48T18-100PC1 have automatic power-fail protection?
Yes, it has automatic power-fail chip deselect and write protection.
- What kind of packaging is available for the M48T18-100PC1?
The device is available in PCDIP-28 and SOIC packages with a SNAPHAT® top for the battery and crystal.
- Is the M48T18-100PC1 RoHS compliant?
Yes, it is RoHS compliant with lead-free second level interconnect.
- What is the mounting method for the M48T18-100PC1?
The mounting method is Through Hole.
- Can the M48T18-100PC1 be used in industrial applications?
Yes, it is suitable for industrial applications due to its robust specifications and operating temperature range.
- How does the SNAPHAT® housing work with the SOIC package?
The SNAPHAT® housing contains the battery and crystal and can be mounted on top of the SOIC package after the surface mount process, preventing potential damage from high temperatures.
