Overview
The M48T37V-10MH1F, produced by STMicroelectronics, is a highly integrated non-volatile static RAM and real-time clock solution. This component is part of the TIMEKEEPER® SRAM family and is designed to provide a robust and reliable memory and timekeeping solution. The device is available in a 44-lead, 330 mil SOIC package, which includes sockets with gold-plated contacts for direct connection to a separate SNAPHAT housing containing the battery and crystal. This unique packaging ensures that the battery and crystal are protected from the high temperatures required for surface-mounting processes.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Min (V) | 3.0 |
| Supply Voltage Max (V) | 3.6 |
| Operating Temperature Min (°C) | 0.0 |
| Operating Temperature Max (°C) | 70.0 |
| Memory Size | 256 Kbit (32 Kbit x 8) |
| Package Type | SOH44 (44-lead SOIC) |
| Packing Type | Tape And Reel |
| RoHS Compliant | Ecopack2 (**) |
| Grade | Industrial |
Key Features
- Integrated ultra low power SRAM, real-time clock, power-fail control circuit, and battery.
- Frequency test output for real-time clock software calibration.
- Automatic power-fail chip deselect and WRITE protection.
- Watchdog timer.
- WRITE protect voltage (VPFD).
- Packaging includes a 44-lead SOIC and SNAPHAT® top (to be ordered separately).
- Microprocessor power-on reset (valid even during battery backup mode).
- Programmable alarm output active in the battery backup mode.
- Battery low flag.
- RoHS compliant with lead-free second level interconnect.
Applications
The M48T37V-10MH1F is suitable for a variety of applications that require reliable non-volatile memory and real-time clock functionality. These include:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Smart meters and energy management systems
- Any system requiring precise timekeeping and secure data storage
Q & A
- What is the M48T37V-10MH1F?
The M48T37V-10MH1F is a 256 Kbit (32 Kbit x 8) non-volatile static RAM and real-time clock solution produced by STMicroelectronics.
- What is the supply voltage range for the M48T37V-10MH1F?
The supply voltage range is from 3.0 V to 3.6 V.
- What is the operating temperature range for the M48T37V-10MH1F?
The operating temperature range is from 0°C to 70°C.
- What type of package does the M48T37V-10MH1F come in?
The device is available in a 44-lead, 330 mil SOIC package.
- Is the M48T37V-10MH1F RoHS compliant?
- What are the key features of the M48T37V-10MH1F?
- How does the SNAPHAT housing protect the battery and crystal?
The SNAPHAT housing is mounted on top of the SOIC package after the surface mount process, preventing potential damage to the battery and crystal from high temperatures.
- What is the purpose of the watchdog timer in the M48T37V-10MH1F?
The watchdog timer redirects an out-of-control microprocessor and provides a reset or interrupt to it.
- How long can the internal battery maintain data in the M48T37V-10MH1F?
The internal button cell can maintain data for an accumulated period of at least 7 years at room temperature when VCC is less than VSO.
- What are some typical applications for the M48T37V-10MH1F?
