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Part Number: M40Z111W
Description: The M40Z111/111W NVRAM Controller is a selfcontained device which converts a standard lowpower SRAM in...
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M40Z111W
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DataSheet
General Description
M40Z111W General Description
The M40Z111/111W NVRAM Controller is a selfcontained device which converts a standard lowpower SRAM into a non-volatile memory.
A precision voltage reference and comparator monitors the VCC input for an out-of-tolerance condition.
M40Z111W Maximum Ratings
|
Symbol |
Parameter |
Value |
Unit | |
|
TA |
Ambient Operating Temperature |
0 to 70 |
||
|
TSTG |
Storage Temperature (VCC Off) | SNAPHAT |
40 to 85 55 to 125 |
|
| SOIC | ||||
|
TSLD (2) |
Lead Solder Temperature for 10 seconds |
260 |
||
|
VIO |
Input or Output Voltages |
0.3 to VCC +0.3 |
V | |
|
VCC |
Supply Voltage |
0.3 to 7 |
V | |
|
IO |
Output Current |
20 |
mA | |
|
PD |
Power Dissipation |
1 |
W | |
Notes: 1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to the absolute maximum rating conditions for extended periods of time may affect reliability.
2. Soldering temperature not to exceed 260 for 10 seconds (total thermal budget not to exceed 150 for longer than 30 seconds).
CAUTION: Negative undershoots below 0.3 volts are not allowed on any pin while in the Battery Back-up mode.
CAUTION: Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
M40Z111W Features
`CONVERT LOW POWER SRAMs into VRAMs
`PRECISION POWER MONITORING and OWER SWITCHING CIRCUITRY
`AUTOMATIC WRITE-PROTECTION when VCC is OUT-OF-TOLERANCE
`CHOICE of SUPPLY VOLTAGES and POWER-FAIL DESELECT VOLTAGES:
M40Z111: VCC = 4.5V to 5.5V
THS = VSS 4.5V VPFD 4.75V
THS = VOUT 4.2V VPFD 4.5V
M40Z111W:
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
`LESS THAN 15ns CHIP ENABLE ACCESS PROPAGATION DELAY (for 5.0V device)
`PACKAGING INCLUDES a 28-LEAD SOIC and SNAPHAT® TOP (to be Ordered Separately)
`SOIC PACKAGE PROVIDES DIRECT
CONNECTION for a SNAPHAT TOP which CONTAINS the BATTERY
`PRECISION POWER MONITORING and OWER SWITCHING CIRCUITRY
`AUTOMATIC WRITE-PROTECTION when VCC is OUT-OF-TOLERANCE
`CHOICE of SUPPLY VOLTAGES and POWER-FAIL DESELECT VOLTAGES:
M40Z111: VCC = 4.5V to 5.5V
THS = VSS 4.5V VPFD 4.75V
THS = VOUT 4.2V VPFD 4.5V
M40Z111W:
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
`LESS THAN 15ns CHIP ENABLE ACCESS PROPAGATION DELAY (for 5.0V device)
`PACKAGING INCLUDES a 28-LEAD SOIC and SNAPHAT® TOP (to be Ordered Separately)
`SOIC PACKAGE PROVIDES DIRECT
CONNECTION for a SNAPHAT TOP which CONTAINS the BATTERY
M40Z111W Connection Diagram
M40Z111W
PDF/DataSheet Download
- Datasheet: M40Z111W
- File Size: 91526 KB
- Manufacturer: STMICROELECTRONICS [STMicroelectronics]
- Click here to Download
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M40Z111
The M40Z111/111W NVRAM Controller is a selfcontained device which converts a standard lowpower SRAM into a non-volatile memory.A precision voltage reference and comparator monitors the VCC input for an out-of-tolerance condition.
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