Key facts
- Brand
- STMicroelectronics
- Model
- M48Z35
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-09
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STMICROELECTRONICS M48Z35/M48Z35Y 256 Kbit (32 Kbit x8) ZEROPOWER SRAM handbook
The STMicroelectronics M48Z35 and M48Z35Y ZeroPower SRAMs are 32 Kbit × 8 non‑volatile static RAM devices that integrate power‑fail detection and a battery‑backed memory cell on a single die. The handbook provides a detailed description of the device architecture, pin functions, and the two available package options – a 28‑pin CAPHAT™ DIP and a 28‑lead SOIC with a separate SNAPHAT battery module.
Operating modes such as READ, WRITE, Data Retention, and Power‑Down/Up are explained with timing diagrams and electrical characteristics. The document also lists absolute maximum ratings, DC/AC parameters, mechanical dimensions, ordering information, and revision history, making it a comprehensive reference for designers and technicians.
STMicroelectronics M48Z35 specifications
| Memory Capacity | 256 Kbit (32 K x 8) |
|---|---|
| READ cycle time | 70 ns |
| Data I/O pins | 8 |
| Supply Voltage (M48Z35) | 4.75 to 5.5 V |
| Supply Voltage (M48Z35Y) | 4.5 to 5.5 V |
| Write Protect Voltage (M48Z35) | 4.5 V to 4.75 V |
| Write Protect Voltage (M48Z35Y) | 4.2 V to 4.5 V |
| Operating Temperature | 0 to 70 °C |
Source: STMicroelectronics M48Z35/M48Z35Y 256 Kbit ZeroPower SRAM Datasheet
All STMicroelectronics M48Z35 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How does the device handle power failure?
When the supply voltage falls below approximately 3 V, the control circuitry connects the battery to maintain data until valid power returns.
From: STMicroelectronics M48Z35/M48Z35Y 256 Kbit ZeroPower SRAM Datasheet
Is the M48Z35 pin compatible with standard SRAMs?
Yes, it is a non-volatile pin and function equivalent to any JEDEC standard 32 K x 8 SRAM.
From: STMicroelectronics M48Z35/M48Z35Y 256 Kbit ZeroPower SRAM Datasheet
What is the supply voltage range for the M48Z35 SRAM?
The M48Z35 operates with a VCC of 4.75 V to 5.5 V.
From: STMICROELECTRONICS M48Z35/M48Z35Y 256 Kbit (32 Kbit x8) ZEROPOWER SRAM handbook