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M48T201V

ST Microelectronics
Part Number M48T201V
Manufacturer ST Microelectronics
Description 3.3V-5V TIMEKEEPER CONTROLLER
Published Apr 29, 2005
Detailed Description M48T201Y M48T201V 5.0 or 3.3 V TIMEKEEPER® supervisor Features ■ Converts low power SRAM into NVRAMs ■ Year 2000 compli...
Datasheet PDF File M48T201V PDF File

M48T201V
M48T201V

Overview
M48T201Y M48T201V 5.
0 or 3.
3 V TIMEKEEPER® supervisor Features ■ 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 (VPFD = power-fail deselect voltage): – M48T201Y: VCC = 4.
5 to 5.
5 V 4.
1V ≤ VPFD ≤ 4.
5 V – M48T201V: VCC = 3.
0 to 3.
6 V 2.
7 V ≤ VPFD ≤ 3.
0 V ■ Microprocessor power-on reset (valid even during battery backup mode) ■ Programmable alarm output active in the battery backed-up mode ■ Packaging includes a 44-lead SOIC and SNAPHAT® top (to be ordered separately) ■ SOIC package provides direct connection for a SNAPHAT® top which contains the battery and crystal ■ RoHS compliant – Lead-free second level interconnect SNAPHAT® (SH) crystal/battery 44 1 SOH44 (MH) 44-pin SOIC March 2009 Rev 7 1/37 www.
st.
com 1 Contents Contents M48T201Y, M48T201V 1 Description .
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