m48t201v STMicroelectronics, m48t201v Datasheet
m48t201v
Manufacturer Part Number
m48t201v
Description
5.0 Or 3.3v Timekeeper Supervisor
Manufacturer
STMicroelectronics
Datasheet
1.M48T201V.pdf
(35 pages)
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Features
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September 2007
Converts low power SRAM into NVRAMs
Year 2000 compliant
Battery low flag
Integrated real time clock, power-fail control
circuit, battery and crystal
Watchdog timer
Choice of write protect voltages
(V
– M48T201Y: V
– M48T201V: V
Microprocessor power-on reset (valid even
during battery back-up mode.)
Programmable alarm output active in the
battery backed-up mode
Packaging includes a 44-lead SOIC and
SNAPHAT
SOIC package provides direct connection for a
SNAPHAT
crystal
RoHS compliant
– Lead-free second level interconnect
PFD
4.1V V
2.7V V
= Power-fail Deselect Voltage):
®
®
PFD
PFD
top which contains the battery and
top (to be ordered separately)
CC
CC
3.0V
4.5V
= 4.5 to 5.5V
= 3.0 to 3.6V
5.0 or 3.3V TIMEKEEPER
Rev 5
44
SNAPHAT (SH)
Crystal/Battery
SOH44 (MH)
44-pin SOIC
1
M48T201Y
M48T201V
®
supervisor
www.st.com
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