M48Z58Y70MH1 STMicroelectronics, M48Z58Y70MH1 Datasheet
M48Z58Y70MH1
Specifications of M48Z58Y70MH1
Related parts for M48Z58Y70MH1
M48Z58Y70MH1 Summary of contents
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Features ■ Integrated, ultra low power SRAM, power-fail control circuit, and battery ■ READ cycle time equals WRITE cycle time ■ Automatic power-fail chip deselect and WRITE protection ■ WRITE protect voltages Power-fail deselect voltage) PFD – M48Z58: ...
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Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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M48Z58, M48Z58Y List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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M48Z58, M48Z58Y 1 Description The M48Z58/Y ZEROPOWER power-fail deselect circuitry and battery control logic on a single die. The monolithic chip is available in two special packages to provide a highly integrated battery-backed memory solution. The M48Z58 non-volatile ...
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Description Table 1. Signal names A0-A12 DQ0-DQ7 Figure 2. DIP connections Figure 3. SOIC connections 6/24 Address inputs Data inputs / outputs Chip enable input Output enable input WRITE enable input Supply ...
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M48Z58, M48Z58Y Figure 4. Block diagram LITHIUM CELL POWER VOLTAGE SENSE AND V PFD SWITCHING CIRCUITRY V CC Doc ID 2559 Rev 10 Description A0-A12 DQ0-DQ7 SRAM ARRAY AI01394 7/24 ...
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Operating modes 2 Operating modes The M48Z58/Y 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 ...
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M48Z58, M48Z58Y Figure 5. READ mode AC waveforms A0-A12 E G DQ0-DQ7 Note: WRITE enable (W) = High. Table 3. READ mode AC characteristics Symbol t READ cycle time AVAV t Address valid to output valid AVQV t Chip enable ...
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Operating modes Figure 6. WRITE enable controlled, WRITE mode AC waveforms A0-A12 E W DQ0-DQ7 Figure 7. Chip enable controlled, WRITE mode AC waveforms A0-A12 tAVEL E W DQ0-DQ7 10/24 tAVAV VALID tAVWH tAVEL tWLWH tAVWL tWLQZ tDVWH tAVAV VALID ...
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M48Z58, M48Z58Y Table 4. WRITE mode AC characteristics Symbol t WRITE cycle time AVAV t Address valid to WRITE enable low AVWL t Address valid to chip enable low AVEL t WRITE enable pulse width WLWH t Chip enable low ...
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Operating modes 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 ...
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M48Z58, M48Z58Y 3 Maximum ratings Stressing the device above the rating listed in the absolute maximum ratings table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other ...
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DC and AC parameters 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 ...
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M48Z58, M48Z58Y Table 8. DC characteristics Symbol Parameter I Input leakage current LI (2) I Output leakage current LO I Supply current CC I Supply current (standby) TTL CC1 I Supply current (standby) CMOS CC2 V Input low voltage IL ...
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DC and AC parameters Table 9. Power down/up AC characteristics Symbol ( PFD ( PFD PFD ...
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M48Z58, M48Z58Y 5 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: ...
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Package mechanical data Figure 12. SOH28 – 28-lead plastic small outline, battery SNAPHAT B Note: Drawing is not to scale. Table 12. SOH28 – 28-lead plastic small outline, battery SNAPHAT data Symbol ...
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M48Z58, M48Z58Y Figure 13. SH – 4-pin SNAPHAT Note: Drawing is not to scale. Table 13. SH – 4-pin SNAPHAT Symbol ® housing for 48 mAh battery, package outline A1 ...
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Package mechanical data Figure 14. SH – 4-pin SNAPHAT Note: Drawing is not to scale. Table 14. SH – 4-pin SNAPHAT Symb 20/24 ® housing for 120 mAh battery, package ...
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M48Z58, M48Z58Y 6 Part numbering Table 15. Ordering information scheme Example: Device type M48Z Supply voltage and write protect voltage ( 4. 58Y = V = 4 ...
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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". 22/24 Doc ID 2559 Rev 10 M48Z58, M48Z58Y ...
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M48Z58, M48Z58Y 8 Revision history Table 17. Document revision history Date Revision March 1999 10-Feb-2000 22-Feb-2000 14-Sep-2001 29-May-2002 16-Sep-2002 02-Apr-2003 23-Mar-2004 23-Nov-2004 09-Jun-2005 14-Dec-2005 06-Nov-2007 10-Mar-2009 14-Oct-2010 1 First issue 1.1 2-socket SOH and 2-pin SH packages removed 1.2 Data ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...