m48z128 STMicroelectronics, m48z128 Datasheet
m48z128
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m48z128 Summary of contents
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... JEDEC STANDARD 128K x 8 SRAMs EQUIVALENT SURFACE-MOUNT (SMT) SOLUTION REQUIRES A 28-PIN M40Z300/ W and A STAND-ALONE 128K x8 LPSRAM ® (SNAPHAT Top to be ordered separately) * Contact local ST sales office for availability. February 2005 M48Z128Y, M48Z128V* Figure 1. 32-pin PMDIP Module 32 1 PMDIP32 (PM) Module M48Z128 ® SRAM ...
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... M48Z128, M48Z128Y, M48Z128V* TABLE OF CONTENTS FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1. 32-pin PMDIP Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 2. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 3. DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 4. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 5. Hardware Hookup for Equivalent Surface-Mount (SMT) Solution . . . . . . . . . . . . . . . . . . . 6 Table 2. Equivalent Surface-Mount (SMT) Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 OPERATING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 3. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 READ Mode ...
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... Table 14. SH – 4-pin SNAPHAT Housing for 48mAh Battery, Package Mechanical Data . . . . . . . 17 Figure 16.SH – 4-pin SNAPHAT Housing for 120mAh Battery, Package Outline . . . . . . . . . . . . . . 18 Table 15. SH – 4-pin SNAPHAT Housing for 120mAh Battery, Package Mechanical Data . . . . . . 18 PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 16. Ordering Information Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 17. SNAPHAT Battery Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 REVISION HISTORY Table 18. Revision History M48Z128, M48Z128Y, M48Z128V* 3/21 ...
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... DIP module. This solution is available in two special packages to provide a highly integrated battery backed-up memory solution. The M48Z128/Y non-volatile pin and func- tion equivalent to any JEDEC standard 128K x 8 SRAM. It also easily fits into many ROM, EPROM, and EEPROM sockets, providing the non-volatility ...
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... DQ0 13 20 DQ1 14 19 DQ2 AI01195 V CC POWER SRAM ARRAY AND E INTERNAL BATTERY M48Z128, M48Z128Y, M48Z128V A15 NC W A13 A8 A9 A11 G A10 E DQ7 DQ6 DQ5 DQ4 DQ3 A0-A16 DQ0-DQ7 131,072 AI01196 5/21 ...
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... Table 2. Equivalent Surface-Mount (SMT) Solution NVRAM M48Z128 M48Z128Y M48Z128V Note: 1. Connection of Threshold Select Pin (Pin 13) of SUPERVISOR (M40Z300/300W). 6/21 OUT CON CON CON CON RST BL V 4.5V (M48Z128Y) or connect THS pin to V PFD V 3.0V (M48Z128V). PFD LPSRAM SUPERVISOR 5V 1Mb LPSRAM 5V 1Mb LPSRAM 3V 1Mb LPSRAM 1Mb LPSRAM E ...
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... OPERATING MODES The M48Z128/Y/V also has its own Power-fail De- tect circuit. The control circuitry constantly moni- tors the single V supply for an out of tolerance CC condition. When V is out of tolerance, the circuit CC write protects the SRAM, providing a high degree Table 3. Operating Modes V Mode ...
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... M48Z128, M48Z128Y, M48Z128V* Figure 7. Address Controlled, READ Mode AC Waveforms A0-A16 DQ0-DQ7 Note: Chip Enable (E) and Output Enable (G) = Low, WRITE Enable (W) = High. Table 4. READ Mode AC Characteristics Symbol Parameter t READ Cycle Time AVAV t Address Valid to Output Valid AVQV t Chip Enable Low to Output Valid ...
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... WRITE Mode The M48Z128/Y the WRITE Mode whenev and E are active. The start of a WRITE is ref- erenced from the latter occurring falling edge WRITE is terminated by the earlier rising edge The addresses must be held valid throughout the cycle ...
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... M48Z128, M48Z128Y, M48Z128V* Table 5. WRITE Mode AC Characteristics Symbol Parameter 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 to Chip Enable High ELEH t WRITE Enable High to Address Transition ...
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... V , the control circuit switches power to SO the internal energy source which preserves data. The internal coin cell will maintain data in the M48Z128/Y/V after the initial application accumulated period of at least 10 years when V is less than system power returns ...
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... M48Z128, M48Z128Y, M48Z128V* MAXIMUM RATING 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 conditions above those indicat the Operating sections of this specification is Table 6 ...
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... Table 8. Capacitance Symbol Parameter C Input Capacitance IN (3) Input / Output Capacitance C IO Note: 1. Effective capacitance measured with power supply at 5V (M48Z128/Y) or 3.3V (M48Z128V); sampled only, not 100% tested 25° 1MHz. 3. Outputs deselected. Table 9. DC Characteristics Sym Parameter I Input Leakage Current LI (2) Output Leakage Current ...
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... M48Z128, M48Z128Y, M48Z128V* Figure 12. Power Down/Up Mode AC Waveforms PFD (max) V PFD (min tWP E RECOGNIZED OUTPUTS VALID (PER CONTROL INPUT) Table 10. Power Down/Up AC Characteristics Symbol (2) V (max PFD PFD F (3) V (min PFD (min PFD PFD ...
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... Min Max 9.27 9.52 0.38 – 0.43 0.59 0.20 0.33 42.42 43.18 18.03 18.80 2.29 2.79 34.29 41.91 14.99 16.00 3.05 3.81 1.91 2.79 32 M48Z128, M48Z128Y, M48Z128V PMDIP inches Typ Min 0.365 0.375 0.015 0.017 0.023 0.008 0.013 1.670 1.700 0.710 0.740 0.090 0.110 1.350 1.650 0.590 0.630 0.120 0.150 0.075 0.110 32 Max – 15/21 ...
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... M48Z128, M48Z128Y, M48Z128V* Figure 14. SOH28 – 28-lead Plastic Small Outline, battery SNAPHAT, Package Outline SOH-A Note: Drawing is not to scale. Table 13. SOH28 – 28-lead Plastic Small Outline, battery SNAPHAT, Package Mechanical Data Symbol Typ 1. ...
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... Table 14. SH – 4-pin SNAPHAT Housing for 48mAh Battery, Package Mechanical Data Symb Typ Min Max 9.78 6.73 7.24 6.48 6.99 0.38 0.46 0.56 21.21 21.84 14.22 14.99 15.55 15.95 3.20 3.61 2.03 2.29 M48Z128, M48Z128Y, M48Z128V SHZP-A inches Typ Min 0.385 0.265 0.285 0.255 0.275 0.015 0.018 0.022 0.835 0.860 0.560 0.590 0.612 0.628 0.126 0.142 0.080 0.090 A2 Max 17/21 ...
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... M48Z128, M48Z128Y, M48Z128V* Figure 16. SH – 4-pin SNAPHAT Housing for 120mAh Battery, Package Outline Note: Drawing is not to scale. Table 15. SH – 4-pin SNAPHAT Housing for 120mAh Battery, Package Mechanical Data Symb Typ 18/ Min Max 10 ...
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... V = 3.0 to 3.6V PFD Speed –70 = 70ns (for M48Z128/Y) –85 = 85ns (for M48Z128/Y/V) –120 = 120ns (for M48Z128/Y/V) (2) Package PM = PMDIP32 Temperature Range 70°C Note: 1. Contact Local Sales Office 2. The SOIC package (SOH28) requires the battery package (SNAPHAT “M4Zxx-BR00SH” in plastic tube or “M4Zxx-BR00SHTR” in Tape & Reel form. ...
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... M48Z128, M48Z128Y, M48Z128V* REVISION HISTORY Table 18. Revision History Date Version May 1999 1.0 First Issue 13-Apr-00 2.0 Document Layout changed; surface-Mount Chip Set solution added t changed (Table 4) 20-Jun-00 2.1 GLQX 19-Jul-00 2.2 M48Z128V added 14-Sep-01 3.0 Reformatted; added temperature information (Table 10, 11) 07-Nov-01 3.1 Remove chipset option from Ordering Information (Table 16) 20-May-02 3 ...
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