M48Z08, M48Z18 5 V, 16 kbit (2 Kb x 8) ZEROPOWER SRAM Datasheet - production data Description The M48Z08/18 ZEROPOWER RAM is a 8 K x 8 non-volatile static RAM which is pin and function compatible with the DS1225. The monolithic chip provides a highly integrated 28 battery-backed memory solution. 1 The M48Z08/18 is a non-volatile pin and function equivalent to any JEDEC standard 8 K x 8 SRAM. PDIP 28.7 It also easily fits into many ROM, EPROM, and EEPROM sockets, providing the non-volatility of Battery CAPHAT PROMs without any requirement for special write timing or limitations on the number of writes that can be performed. Features The 28-pin, 600 mil DIP CAPHAT houses the M48Z08/18 silicon with a long-life lithium button Integrated, ultra low power SRAM and power- cell in a single package. fail control circuit Unlimited WRITE cycles READ cycle time equals WRITE cycle time Automatic power-fail chip deselect and WRITE protection WRITE protect voltages (V = power-fail deselect voltage): PFD M48Z08: V = 4.75 to 5.5 V CC 4.5 V V 4.75 V PFD M48Z18: V = 4.5 to 5.5 V CC 4.2 V V 4.5 V PFD Self-contained battery in the CAPHAT DIP package Pin and function compatible with JEDEC standard 2 K x 8 SRAMs RoHS compliant Lead-free second level interconnect September 2020 DocID02424 Rev 9 1/18 This is information on a product in full production. www.st.comContents M48Z08, M48Z18 Contents 1 Diagram . 3 2 Pin connection 4 3 Operation modes 5 3.1 READ mode 5 3.2 WRITE mode . 6 3.3 Data retention mode 8 3.4 V noise and negative going transients 9 CC 4 Maximum ratings . 10 5 DC and AC parameters 11 6 Package mechanical data 14 7 Part numbering 15 8 Environmental information . 16 9 Revision history . 17 2/18 DocID02424 Rev 9