STMicroelectronics M40Z111W
The M40Z111/W NVRAM supervisor is a self-contained device which converts a standard low-power SRAM into a non-volatile memory. When an invalid VCC condition occurs, the conditioned chip enable (ECON) output is forced inactive to write-protect the stored data in the SRAM.| Part No. | M40Z111W |
|---|---|
| Datasheet | M40Z111W Download |
| Manufacturer |  STMicroelectronics |
| Description | NVRAM supervisor |
| Buy | Stock & Price |
FEATURES
● Convert low power SRAMs into NVRAMs● Precision power monitoring and power switching circuitry t(s)
● Automatic write-protection when VCC is out-oftolerance c
● Choice of supply voltages and du power-fail deselect voltages: ro – M40Z111: VCC = 4.5 to 5.5 V P THS = VSS; 4.5 ≤ VPFD ≤ 4.75 V THS = VOUT; 4.2 ≤ VPFD ≤ 4.5 V te – M40Z111W: VCC = 3.0 to 3.6 V le THS = VSS; 2.8 ≤ VPFD ≤ 3.0 V so VCC = 2.7 to 3.3 V b THS = VOUT; 2.5 ≤ VPFD ≤ 2.7 V O
● Less than 15 ns chip enable access - propagation delay (for 5.0 V device) t(s)
● Packaging includes a 28-lead SOIC and SNAPHAT® top (to be ordered separately) uc
● SOIC package provides direct connection for a d SNAPHAT top which contains the battery ro
● RoHS compliant Obsolete P – Lead-free second level interconnect SNAPHAT (SH) battery 28 1 SOH28 (MH) December 2010 Doc ID 5676 Rev 5 This is information on a product still in production but not recommended for new designs. 1/20 1 M40Z111, M40Z111W 1
DESCRIPTION
DESCRIPTION
A precision voltage reference and comparator monitors the VCC input for an out-of-tolerance condition.
