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PDF M40Z300MH1TR Data sheet ( Hoja de datos )

Número de pieza M40Z300MH1TR
Descripción NVRAM CONTROLLER for up to EIGHT LPSRAM
Fabricantes ST Microelectronics 
Logotipo ST Microelectronics Logotipo



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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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M40Z300MH1TR pdf
Figure 4. 28-pin SOIC Connections
VOUT
NC
NC
RST
NC
A
NC
B
NC
BL
NC
NC
THS
VSS
1 28
2 27
3 26
4 25
5 24
6 23
7 M40Z300 22
8 M40Z300W 21
9 20
10 19
11 18
12 17
13 16
14 15
AI02243
VCC
E
NC
NC
NC
E1CON
E2CON
NC
E3CON
NC
NC
NC
E4CON
NC
Figure 5. M40Z300 16-pin SOIC Connections
M40Z300, M40Z300W
Figure 6. M40Z300W 16-pin SOIC Connections
VOUT
NC
RST
A
B
BL
THS
VSS
1 16
2 15
3 14
4 M40Z300W 13
5 12
6 11
7 10
89
VCC
B–
E
E1CON
E2CON
E3CON
E4CON
B+
AI06350
Note: For M40Z300W, B– must be connected to the negative bat-
tery terminal only (not to Pin 8, VSS).
VOUT
NC
RST
A
B
BL
THS
VSS
1 16
2 15
3 14
4 M40Z300 13
5 12
6 11
7 10
89
VCC
B+
E
E1CON
E2CON
E3CON
E4CON
B–
AI03624
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5 Page





M40Z300MH1TR arduino
M40Z300, M40Z300W
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 under the Measure-
ment Conditions listed in the relevant tables. De-
signers should check that the operating conditions
in their projects match the measurement condi-
tions when using the quoted parameters.
Table 4. DC and AC Measurement Conditions
Parameter
VCC Supply Voltage
Ambient Operating Temperature
Grade 1
Grade 6
Load Capacitance (CL)
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
Note: Output High Z is defined as the point where data is no longer driven.
M40Z300
4.5 to 5.5V
0 to 70°C
–40 to 85°C
100pF
5ns
0 to 3V
1.5V
M40Z300W
2.7 to 3.6V
0 to 70°C
–40 to 85°C
50pF
5ns
0 to 3V
1.5V
Figure 10. AC Testing Load Circuit
DEVICE
UNDER
TEST
333
CL = 100pF
or 50pF
1.73V
CL includes JIG capacitance
AI02393
Note: 50pF for M40Z300W.
Table 5. Capacitance
Symbol
Parameter(1,2)
CIN Input Capacitance
COUT(3) Input/Output Capacitance
Note: 1. Sampled only, not 100% tested.
2. At 25°C, f = 1MHz.
3. Outputs deselected.
Min
Max
8
10
Unit
pF
pF
11/21

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