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M48Z12-70PC1TR Datasheet(PDF) 3 Page - STMicroelectronics |
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M48Z12-70PC1TR Datasheet(HTML) 3 Page - STMicroelectronics |
3 / 16 page 3/16 M48Z02, M48Z12 SUMMARY DESCRIPTION The M48Z02/12 ZEROPOWER® RAM is a 2K x 8 non-volatile static RAM which is pin and functional compatible with the DS1220. A special 24-pin, 600mil DIP CAPHAT™ package houses the M48Z02/12 silicon with a long life lithi- um button cell to form a highly integrated battery backed-up memory solution. The M48Z02/12 button cell has sufficient capacity and storage life to maintain data functionality for an accumulated time period of at least 10 years in the absence of power over commercial operating temperature range. The M48Z02/12 is a non-volatile pin and function equivalent to any JEDEC standard 2K x 8 SRAM. It also easily fits into many ROM, EPROM, and EEPROM sockets, providing the non-volatility of PROMs without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed. Figure 2. Logic Diagram Table 1. Signal Names Figure 3. DIP Connections AI01186 11 A0-A10 W DQ0-DQ7 VCC M48Z02 M48Z12 G VSS 8 E A0-A10 Address Inputs DQ0-DQ7 Data Inputs / Outputs E Chip Enable G Output Enable W WRITE Enable VCC Supply Voltage VSS Ground A1 A0 DQ0 A7 A4 A3 A2 A6 A5 A10 A8 A9 DQ7 W G E DQ5 DQ1 DQ2 DQ3 VSS DQ4 DQ6 VCC AI01187 M48Z02 M48Z12 8 1 2 3 4 5 6 7 9 10 11 12 16 15 24 23 22 21 20 19 18 17 14 13 |
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