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M40Z300MQ1 fiches techniques PDF

ST Microelectronics - NVRAM CONTROLLER for up to EIGHT LPSRAM

Numéro de référence M40Z300MQ1
Description NVRAM CONTROLLER for up to EIGHT LPSRAM
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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M40Z300MQ1 fiche technique
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M40Z300
M40Z300W
5V or 3V NVRAM Supervisor for Up to 8 LPSRAMs
FEATURES SUMMARY
CONVERTS LOW POWER SRAM INTO
NVRAMs
PRECISION POWER MONITORING AND
POWER SWITCHING CIRCUITRY
AUTOMATIC WRITE-PROTECTION WHEN
VCC IS OUT-OF-TOLERANCE
TWO-INPUT DECODER ALLOWS
CONTROL FOR UP TO 8 SRAMs (with 2
devices active in parallel)
CHOICE OF SUPPLY VOLTAGES AND
POWER-FAIL DESELECT VOLTAGES:
– M40Z300:
VCC = 4.5V to 5.5V
THS = VSS: 4.5V VPFD 4.75V
THS = VOUT: 4.2V VPFD 4.5V
– M40Z300W:
VCC = 3.0V to 3.6V
THS = VSS: 2.8V VPFD 3.0V
VCC = 2.7V to 3.3V
THS = VOUT: 2.5 VPFD 2.7V
RESET OUTPUT (RST) FOR POWER ON
RESET
BATTERY LOW PIN (BL)
LESS THAN 12ns CHIP ENABLE ACCESS
PROPAGATION DELAY (for 5.0V device)
PACKAGING INCLUDES A 28-LEAD SOIC
AND SNAPHAT® TOP (to be ordered
separately), OR A 16-LEAD SOIC
SOIC PACKAGE PROVIDES DIRECT
CONNECTION FOR A SNAPHAT TOP
WHICH CONTAINS THE BATTERY
Figure 1. 16-pin SOIC Package
16
1
SO16 (MQ)
Figure 2. 28-pin SOIC Package
SNAPHAT (SH)
Crystal/Battery
28
1
SOH28 (MH)
February 2005
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