M40SZ100W データシートの表示（PDF） - STMicroelectronics

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M40SZ100W

5V or 3V NVRAM SUPERVISOR FOR LPSRAM

STMicroelectronics 

M40SZ100Y

M40SZ100W

5V or 3V NVRAM SUPERVISOR FOR LPSRAM

FEATURES SUMMARY

s CONVERT LOW POWER SRAMs INTO

NVRAMs

s 5V OR 3V OPERATING VOLTAGE

s PRECISION POWER MONITORING and

POWER SWITCHING CIRCUITRY

s AUTOMATIC WRITE-PROTECTION WHEN

VCC IS OUT-OF-TOLERANCE

s CHOICE OF SUPPLY VOLTAGES and

POWER-FAIL DESELECT VOLTAGES:

– M40SZ100Y: VCC = 4.5 to 5.5V;

4.20V ≤ VPFD ≤ 4.50V

– M40SZ100W: VCC = 2.7 to 3.6V;

2.55V ≤ VPFD ≤ 2.70V

s RESET OUTPUT (RST) FOR POWER ON

RESET

s 1.25V REFERENCE (for PFI/PFO)

s LESS THAN 10ns CHIP ENABLE ACCESS

PROPAGATION DELAY (at 5V)

s OPTIONAL PACKAGING INCLUDES A 28-

LEAD SOIC and SNAPHAT® TOP (to be

ordered separately)

s 28-LEAD SOIC PACKAGE PROVIDES

DIRECT CONNECTION FOR A SNAPHAT

TOP WHICH CONTAINS THE BATTERY

s BATTERY LOW PIN (BL)

Figure 1. 16-pin SOIC Package

16

1

SO16 (MQ)

Figure 2. 28-pin SOIC Package*

SNAPHAT (SH)

Battery

28

1

SOH28 (MH)

* Contact Local Sales Office

September 2003

Rev. 1.3

1/19

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