M48Z18-100PC1 STMicroelectronics, M48Z18-100PC1 Datasheet
M48Z18-100PC1
Specifications of M48Z18-100PC1
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M48Z18-100PC1 Summary of contents
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... WRITE protect voltages (V = power-fail deselect voltage): PFD – M48Z08 4. 4.5 V ≤ V ≤ 4.75 V PFD – M48Z18 4 4.2 V ≤ V ≤ 4.5 V PFD ■ Self-contained battery in the CAPHAT™ DIP package ■ Pin and function compatible with JEDEC standard SRAMs ■ ...
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... Operation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 READ mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 WRITE mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 Data retention mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.4 V noise and negative going transients . . . . . . . . . . . . . . . . . . . . . . . . . Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7 Environmental information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 Doc ID 2424 Rev 7 M48Z08, M48Z18 ...
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... M48Z08, M48Z18 List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 2. Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 3. READ mode AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 4. WRITE mode AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 5. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 6. Operating and AC measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 7. Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 8. DC characteristics Table 9. Power down/up AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 10. Power down/up trip points DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 11. PCDIP28 – ...
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... Figure 6. Chip enable controlled, WRITE mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 7. Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 8. AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 9. Power down/up mode AC waveforms Figure 10. PCDIP28 – 28-pin plastic DIP, battery CAPHAT™, package outline . . . . . . . . . . . . . . . . . 16 Figure 11. Recycling symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4/20 Doc ID 2424 Rev 7 M48Z08, M48Z18 ...
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... M48Z08, M48Z18 1 Description The M48Z08/18 ZEROPOWER function compatible with the DS1225. The monolithic chip provides a highly integrated battery-backed memory solution. The M48Z08/ non-volatile pin and function equivalent to any JEDEC standard 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 ...
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... DIP connections Figure 3. Block diagram LITHIUM CELL VOLTAGE SENSE 6/ A12 M48Z08 M48Z18 DQ0 11 18 DQ1 12 17 DQ2 POWER AND V PFD SWITCHING CIRCUITRY V CC Doc ID 2424 Rev 7 M48Z08, M48Z18 A11 G A10 E DQ7 DQ6 DQ5 DQ4 DQ3 A0-A12 DQ0-DQ7 SRAM ARRAY AI01183 AI01394 ...
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... M48Z08, M48Z18 2 Operation modes The M48Z08/18 also has its own power-fail detect circuit. The control circuitry constantly monitors the single 5 V supply for an out of tolerance condition. When V tolerance, the circuit write protects the SRAM, providing a high degree of data security in the midst of unpredictable system operation brought on by low V approximately 3 V, the control circuitry connects the battery which maintains data until valid power returns ...
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... VALID tAVQV tELQV tELQX tGLQV tGLQX ( ° 4. 4.5 to 5.5 V (except where noted prior to the end of WRITE and remain valid for t DVWH Doc ID 2424 Rev 7 M48Z08, M48Z18 tAXQX tEHQZ tGHQZ VALID M48Z08/M48Z18 Min Max 100 100 100 ...
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... M48Z08, M48Z18 Figure 5. WRITE enable controlled, WRITE mode AC waveform A0-A12 E W DQ0-DQ7 Figure 6. Chip enable controlled, WRITE mode AC waveforms A0-A12 tAVEL E W DQ0-DQ7 tAVAV VALID tAVWH tAVEL tWLWH tAVWL tWLQZ tDVWH tAVAV VALID tAVEH tELEH tAVWL DATA INPUT tDVEH Doc ID 2424 Rev 7 ...
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... The M48Z08/18 may respond to transient noise spikes the control circuit switches power to the internal battery which SO rises above Write protection continues until V CC (max). For more information on battery storage life refer to the PFD Doc ID 2424 Rev 7 M48Z08, M48Z18 M48Z08/M48Z18 Min Max 100 ...
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... M48Z08, M48Z18 2.4 V noise and negative going transients CC I transients, including those produced by output switching, can produce voltage CC fluctuations, resulting in spikes on the V capacitors are used to store energy which stabilizes the V bypass capacitors will be released as low going spikes are generated or energy will be absorbed when overshoots occur. A ceramic bypass capacitor value of 0.1 µ ...
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... Furthermore, the devices shall not be exposed to IR reflow. Caution: Negative undershoots below –0.3 V are not allowed on any pin while in the battery backup mode. 12/20 Parameter off, oscillator off) CC Doc ID 2424 Rev 7 M48Z08, M48Z18 Value Unit °C – °C 260 °C –0 – ...
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... M48Z08, M48Z18 4 DC and AC parameters This section summarizes the operating and measurement conditions, as well as the DC and AC characteristics of the device. The parameters in the following DC and AC characteristic tables are derived from tests performed under the measurement conditions listed in the relevant tables. Designers should check that the operating conditions in their projects match the measurement conditions when using the quoted parameters ...
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... V or 4.5 to 5.5 V (except where noted A CC tDR tFB DON'T CARE HIGH-Z (min). Some systems may perform inadvertent WRITE cycles after V (min) but before normal system operations begin. Even though a power on Doc ID 2424 Rev 7 M48Z08, M48Z18 (1) Min Max ±1 CC ± – ...
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... M48Z08, M48Z18 Table 9. Power down/up AC characteristics Symbol ( PFD ( PFD PFD rec 1. Valid for ambient operating temperature: T noted (max PFD PFD until 200 µs after (min PFD SS Table 10. Power down/up trip points DC characteristics Symbol V Power-fail deselect voltage PFD V Battery backup switchover voltage ...
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... Doc ID 2424 Rev 7 M48Z08, M48Z18 C eA PCDIP inches Typ Min Max 0.350 0.380 0.015 0.030 0.330 0.350 0.015 0.021 0.045 0.070 0.008 0.012 1 ...
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... M48Z08, M48Z18 6 Part numbering Table 12. Ordering information scheme Example: Device Type M48Z Supply voltage and write protect voltage 4. 4 Speed –100 = 100 ns Package PC = PCDIP28 Temperature range °C Shipping method ® blank = ECOPACK ® ECOPACK package, tape & reel For other options, or for more information on any aspect of this device, please contact the ST sales office nearest you ...
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... Recycle or dispose of batteries in accordance with the battery manufacturer's instructions and local/national disposal and recycling regulations. Please refer to the following web site address for additional information regarding compliance statements and waste recycling www.st.com/nvram, then select "Lithium Battery Recycling" from "Related Topics". 18/20 Doc ID 2424 Rev 7 M48Z08, M48Z18 ...
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... M48Z08, M48Z18 8 Revision history Table 13. Document revision history Date Revision Mar-1999 19-Jul-2001 19-Dec-2001 21-Dec-2001 20-May-2002 10-Sep-2002 01-Apr-2003 28-Aug-2004 14-Dec-2005 24-Mar-2009 27-May-2010 1 First issue 2-socket SOH and 2-pin SH packages removed; reformatted; 2 temperature information added to tables 2.1 Remove all references to “clock” 2.2 Changes to text to reflect addition of M48Z08Y option 2 ...
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... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 20/20 Please Read Carefully: © 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 2424 Rev 7 M48Z08, M48Z18 ...