Key facts
- Brand
- STMicroelectronics
- Model
- M48Z12
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-09
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STMicroelectronics M48Z02/M48Z12 5 V 16 Kbit (2 Kb x 8) ZEROPOWER SRAM Datasheet
STMicroelectronics' M48Z02/M48Z12 is a 5 V, 16 Kbit (2 Kb x 8) ZEROPOWER SRAM in a 24-pin, 600 mil DIP CAPHAT package with a self-contained lithium button cell. It is pin and function compatible with JEDEC standard 2 K x 8 SRAMs and with the DS1220, and its battery maintains data for at least 10 years without power over the commercial temperature range.
The document describes READ and WRITE operation, power-fail deselect and battery backup behavior, data retention, maximum ratings, DC and AC parameters, package mechanical data, ordering information, and environmental information. It also covers the BOK flag check after power-up and recommended power-supply decoupling.
STMicroelectronics M48Z12 specifications
| Memory organization | 2 K x 8 (16 Kbit) non-volatile static RAM |
|---|---|
| M48Z02 supply voltage | 4.75 to 5.5 V |
| M48Z02 power-fail deselect voltage | 4.5 V ≤ VPFD ≤ 4.75 V |
| M48Z12 supply voltage | 4.5 to 5.5 V |
| M48Z12 power-fail deselect voltage | 4.2 V ≤ VPFD ≤ 4.5 V |
| Package | 24-pin, 600 mil DIP CAPHAT |
| Data retention | At least 10 years without power over commercial temperature range |
| Battery chemistry | Lithium carbon monofluoride button cell |
Source: STMicroelectronics M48Z02/M48Z12 5 V 16 Kbit (2 Kb x 8) ZEROPOWER SRAM Datasheet
All STMicroelectronics M48Z12 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the memory size and organization of the M48Z02/M48Z12?
It is a 16 Kbit device organized as a 2 K x 8 non-volatile static RAM, with 2,048 bytes selected by 11 address inputs.
From: STMicroelectronics M48Z02/M48Z12 5 V 16 Kbit (2 Kb x 8) ZEROPOWER SRAM Datasheet
How long can the M48Z02/M48Z12 keep data without power?
The button cell maintains data for an accumulated period of at least 10 years without power over the commercial operating temperature range.
From: STMicroelectronics M48Z02/M48Z12 5 V 16 Kbit (2 Kb x 8) ZEROPOWER SRAM Datasheet
How long does data retention last?
The device maintains data and clock functionality for at least 10 years in the absence of power.
From: STMicroelectronics M48Z02/M48Z12 16 Kbit ZeroPower SRAM Datasheet
What is the write protect voltage for M48Z02?
The write protect voltage (Vprp) ranges from 4.50V to 4.75V.
From: STMicroelectronics M48Z02/M48Z12 16 Kbit ZeroPower SRAM Datasheet