M40Z111W View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'M40Z111W' PDF : 20 Pages View PDF
M40Z111
M40Z111W
5 V or 3 V NVRAM supervisor for up to two LPSRAMs
Not recommended for new design
Features
■ Convert low power SRAMs into NVRAMs
■ Precision power monitoring and power
switching circuitry
t(s) ■ Automatic write-protection when VCC is out-of-
tolerance
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.
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