Key facts
- Brand
- STMicroelectronics
- Model
- M48T248V
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-02
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STMicroelectronics M48T248Y/M48T248V Timekeeper SRAM Datasheet
The document describes the M48T248Y and M48T248V Timekeeper SRAM devices from STMicroelectronics. These are 128K x 8 non-volatile static RAM modules that integrate a real-time clock (RTC) and a self-contained battery backup within a single 32-pin DIP package.
The device maintains timekeeping operation even during power instability or absence, tracking seconds down to tenths/hundredths of a second. It features automatic leap year correction valid up to the year 2100 and offers two operating voltage options: M48T248Y for 5.0V systems and M48T248V for 3.3V systems.
STMicroelectronics M48T248V specifications
| Memory Size | 128K x 8 bits |
|---|---|
| Operating Voltage (M48T248Y) | 5.0V |
| Operating Voltage (M48T248V) | 3.3V |
| Package Type | 32-pin DIP |
| Operating Temperature Range | 0 to 70 °C |
| Data Retention (No Power) | Over 10 years |
Source: STMicroelectronics M48T248Y/M48T248V Timekeeper SRAM Datasheet
All STMicroelectronics M48T248V documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the power-fail deselect voltage for M48T248Y?
The power-fail deselect voltage (VpFD) for M48T248Y is between 4.25V and 4.50V.
From: STMicroelectronics M48T248Y/M48T248V Timekeeper SRAM Datasheet
What is the power-fail deselect voltage for M48T248V?
The power-fail deselect voltage (VpFD) for M48T248V is between 2.80V and 2.97V.
From: STMicroelectronics M48T248Y/M48T248V Timekeeper SRAM Datasheet
Does the device support automatic leap year correction?
Yes, it includes automatic leap year correction valid up to the year 2100.
From: STMicroelectronics M48T248Y/M48T248V Timekeeper SRAM Datasheet
What is the power-fail deselect voltage for M48T248Y?
The power-fail deselect voltage (VpFD) for M48T248Y is between 4.25V and 4.50V.
From: STMicroelectronics M48T248Y/M48T248V Timekeeper SRAM Datasheet