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NVRAM Supervisor
M48T201V: 3.3V, Parallel RTC and NVRAM

M48T201V Datasheet

M48T201V Additional Technical Information

M48T201V PackageThe M48T201V is is a combination Real-Time Clock and NVRAM Supervisor. It is intended for use in high-density, surface-mount NVRAM applications, and can also be used in applications requiring a standalone parallel access RTC.

It can be easily connected to most microprocessors and microcontrollers, and its Watchdog Timer and Power-on Reset/Low-Voltage Detect Output can provide supervisor functions for the microprocessor.

The M48T201V is offered in our 44-lead SNAPHAT® SOIC, and offers the following features:
Parallel access (8-bit) with separate chip enable input dedicated to RTC
BCD Registers for Hours, Minutes, Seconds, Day, Date, Month, Year, and Century
Century Bits (Y2.1K compliant)
3.3V Operation - (Standby Current @2.5V: TTL = 3mA; CMOS = 2mA)
Programmable Alarm with Repeat Modes
Watchdog Timer with Programmable Time-out Period (64ms to 128s)
Battery Low Flag
Automatic Battery Switchover and Write Protect with:
 
Vout pin that supplies an external LPSRAM

Two chip enable outputs which provide power-fail write protection

Temperature Range
 
0°C to +70°C
Packaging - 44-Lead SNAPHAT® SOIC (Lead-free)
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Sales Types
' M48T201V-85MH1E SOH44 Commercial
  M48T201V-85MH1F SOH44, Tape & Reel Commercial
M48T201V Product Selector
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M48T201V Applications

Medical Instruments

Servers
SCSI
RAID Controllers
Routers

High-end Modems
Switches
Data Logging

Gaming
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More Information

M48T201V Datasheet
M48T201V Additional Technical Information