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M40Z300AV, M40Z300AVMQ6E, M40Z300MH1

Table of contents:
Info of M40Z300AV
Info of M40Z300AVMQ6E
Info of M40Z300MH1

M40Z300AV, M40Z300AVMQ6E, M40Z300MH1 Selling Leads, Datasheet

MFG:ST Package Cooled:SOP16 D/C:07+

M40Z300AV, M40Z300AVMQ6E, M40Z300MH1 Picture

M40Z300AV, M40Z300AVMQ6E, M40Z300MH1 Datasheet download

Five Points

Part Number: M40Z300AV

MFG: ST

Package Cooled: SOP16

D/C: 07+

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M40Z300AV General Description

The M40Z300AV NVRAM SUPERVISOR is a selfcontained device which converts a standard lowpower SRAM into a non-volatile memory. A precision voltage reference and comparator monitors the V_CC input for an out-of-tolerance condition.

When an invalid V_CC condition occurs, the conditioned chip enable outputs (E1CON to E4CON) are forced inactive to write-protect the stored data in the SRAM. During a power failure, the SRAM is switched from the V_CC pin to the lithium cell within the SNAPHAT^® to provide the energy required for data retention. On a subsequent power-up, the SRAM remains write protected until a valid power condition returns.

The 28-pin, 330mil SOIC provides sockets with gold plated contacts for direct connection to a separate SNAPHAT housing containing the battery. The SNAPHAT housing has gold plated pins which mate with the sockets, ensuring reliable connection. The housing is keyed to prevent improper insertion. This unique design allows the SNAPHAT battery package to be mounted on top of the SOIC package after the completion of the surface mount process which greatly reduces the board manufacturing process complexity of either directly soldering or inserting a battery into a soldered holder. Providing non-volatility becomes a "SNAP." The 16-pin SOIC provides battery pins for an external user-supplied battery.

Insertion of the SNAPHAT housing after reflow prevents potential battery damage due to the high temperatures required for device surface-mounting. The SNAPHAT housing is also keyed to prevent reverse insertion.

The 28-pin SOIC and battery packages are shipped separately in plastic anti-static tubes or in Tape & Reel form. For the 28-lead SOIC, the battery/ crystal package (e.g., SNAPHAT) part number is "M4ZXX-BR00SH" (see Table 13., page 18).

Caution: Do not place the SNAPHAT battery top in conductive foam, as this will drain the lithium button-cell battery.

M40Z300AV Maximum Ratings

Symbol	Parameter		Value	Unit
T_A	Ambient Operating Temperature	Grade 1	0 to 70	°C
T_A	Ambient Operating Temperature	Grade 6	40 to 85	°C
T_STG	Storage Temperature	SNAPHAT^®	40 to 85	°C
T_STG	Storage Temperature	SOIC	55 to 125	°C
T_SLD^(1,2,3)	Lead Solder Temperature for 10 seconds		260	°C
V_IO	Input or Output Voltage		0.3 to V_CC + 0.3	V
V_CC	Supply Voltage		0.3 to 4.6	V
I_O	Output Current		20	mA
P_D	Power Dissipation		1	W

Note: 1. Reflow at peak temperature of 215°C to 225°C for < 60 seconds (total thermal budget not
              to exceed 180°C for between 90 to 120 seconds).
          2. For SO package, standard lead finish: Reflow at peak temperature of 225°C (total thermal budget
              not to exceed 180°C for between 90 to 150 seconds).
          3. For SO package, Lead-free (Pb-free) lead finish: Reflow at peak temperature of 260°C (total thermal
             budget not to exceed 245°C for greater than 30 seconds).

M40Z300AV Features

` CONVERTS LOW POWER SRAM INTO NVRAMs
` PRECISION POWER MONITORING AND POWER SWITCHING CIRCUITRY
` AUTOMATIC WRITE-PROTECTION WHEN V_CC IS OUT-OF-TOLERANCE
` TWO-INPUT DECODER ALLOWS CONTROL FOR UP TO 8 SRAMs (with 2 devices active in parallel)
` SUPPLY VOLTAGE AND POWER-FAIL DESELECT VOLTAGE:
    M40Z300AV:
        V_CC = 3.0V to 3.6V
        THS = V_SS: 2.8V < VPFD < 3.0V
` 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^® TOP
    (to be ordered separately)
` SOIC PACKAGE PROVIDES DIRECT
    CONNECTION FOR A SNAPHAT TOP
    WHICH CONTAINS THE BATTERY

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