M40Z300AVMH1E STMICROELECTRONICS [STMicroelectronics], M40Z300AVMH1E Datasheet

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M40Z300AVMH1E

Manufacturer Part Number
M40Z300AVMH1E
Description
3V NVRAM Supervisor for Up to 8 LPSRAMs
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
FEATURES SUMMARY
March 2004
CONVERTS LOW POWER SRAM INTO
NVRAMs
PRECISION POWER MONITORING AND
POWER SWITCHING CIRCUITRY
AUTOMATIC WRITE-PROTECTION WHEN
V
TWO-INPUT DECODER ALLOWS
CONTROL FOR UP TO 8 SRAMs (with 2
devices active in parallel)
SUPPLY VOLTAGE AND POWER-FAIL
DESELECT VOLTAGE:
RESET OUTPUT (RST) FOR POWER ON
RESET
BATTERY LOW PIN (BL)
LESS THAN 20ns CHIP ENABLE ACCESS
PROPAGATION DELAY
PACKAGING INCLUDES A 16-LEAD SOIC
OR A 28-LEAD SOIC AND SNAPHAT
(to be ordered separately)
SOIC PACKAGE PROVIDES DIRECT
CONNECTION FOR A SNAPHAT TOP
WHICH CONTAINS THE BATTERY
CC
M40Z300AV:
V
THS = V
IS OUT-OF-TOLERANCE
CC
= 3.0V to 3.6V
SS
: 2.8V
V
PFD
3V NVRAM Supervisor for Up to 8 LPSRAMs
3.0V
®
TOP
Figure 1. 16-pin SOIC Package
Figure 2. 28-pin SOIC Package*
28
SNAPHAT (SH)
Crystal/Battery
16
SO16 (MQ)
SOH28 (MH)
1
1
M40Z300AV
1/20

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M40Z300AVMH1E Summary of contents

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FEATURES SUMMARY CONVERTS LOW POWER SRAM INTO NVRAMs PRECISION POWER MONITORING AND POWER SWITCHING CIRCUITRY AUTOMATIC WRITE-PROTECTION WHEN V IS OUT-OF-TOLERANCE CC TWO-INPUT DECODER ALLOWS CONTROL FOR SRAMs (with 2 devices active in parallel) SUPPLY VOLTAGE AND ...

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M40Z300AV TABLE OF CONTENTS FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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M40Z300AV DESCRIPTION The M40Z300AV NVRAM SUPERVISOR is a self- contained device which converts a standard low- power SRAM into a non-volatile memory. A preci- sion voltage reference and comparator monitors the V input for an out-of-tolerance condition. CC When an ...

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Figure 4. 28-pin SOIC Connections V OUT RST THS AI08894 Figure 6. Hardware Hookup ...

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M40Z300AV OPERATION The M40Z300AV, as shown in can control up to four (eight, if placed in parallel) standard low-power SRAMs. These SRAMs must be configured to have the chip enable input dis- able all other input signals. Most slow, low-power ...

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Data Retention Lifetime Calculation Most low power SRAMs on the market today can be used with the M40Z300AV NVRAM SUPERVI- SOR. There are, however some criteria which should be used in making the final choice of which SRAM to use. ...

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M40Z300AV V Noise And Negative Going Transients CC I transients, including those produced by output CC switching, can produce voltage fluctuations, re- sulting in spikes on the V bus. These transients CC can be reduced if capacitors are used to ...

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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 ...

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M40Z300AV DC AND AC PARAMETERS This section summarizes the operating and mea- surement 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 ...

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Table 6. DC Characteristics Sym Parameter (2) Input Leakage Current Supply Current CC V Input Low Voltage IL V Input High Voltage IH Output Low Voltage V OL Output Low Voltage (open drain) V Output High Voltage ...

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M40Z300AV Figure 10. Power Down Timing PFD (max) V PFD V PFD (min CON - E4 CON RST Figure 11. Power Up Timing PFD (max) V PFD V PFD ...

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Table 7. Power Down/Up Mode AC Characteristics Symbol (2) V (max PFD PFD F (3) V (min PFD (min PFD PFD t Chip Enable Propagation Delay Low ...

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M40Z300AV PACKAGE MECHANICAL INFORMATION Figure 12. SOH28 – 28-lead Plastic Small Outline, 4-socket battery SNAPHAT, Package Outline SOH-A Note: Drawing is not to scale. Table 8. SOH28 – 28-lead Plastic Small Outline, battery SNAPHAT, Package ...

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Figure 13. SH – 4-pin SNAPHAT Housing for 48mAh Battery, Package Outline Note: Drawing is not to scale. Table 9. SH – 4-pin SNAPHAT Housing for 48mAh Battery, Package Mechanical Data Symbol Typ ...

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M40Z300AV Figure 14. SH – 4-pin SNAPHAT Housing for 120mAh Battery, Package Outline Note: Drawing is not to scale. Table 10. SH – 4-pin SNAPHAT Housing for 120mAh Battery, Package Mechanical Data Symbol Typ ...

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Figure 15. SO16 – 16-lead Plastic Small Outline, 150 mils body width, Package Outline SO-b Note: Drawing is not to scale. Table 11. SO16 – 16-lead Plastic Small Outline, 150 mils body width, Package Mechanical ...

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M40Z300AV PART NUMBERING Table 12. Ordering Information Example Example: Device Type M40Z Supply and Write Protect Voltage 300AV = V = 3.0 to 3.6V CC THS = PFD Package MQ = SO16 (1, ...

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REVISION HISTORY Table 14. Document Revision History Date Version November 14, 2003 1.0 19-Nov-03 1.1 09-Mar-04 2.0 M40Z300AV, 40Z300AV, Z300AV, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZE- ROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOWER, ZEROPOW- ER, SUPERVISOR, SUPERVISOR, SUPERVISOR, ...

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M40Z300AV Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequ of use of such information nor for any infringement of patents or other rights of third parties which may result from its ...

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