M48T201Y-85MH1 Просмотр технического описания (PDF) - STMicroelectronics

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производитель

M48T201Y-85MH1

5.0 or 3.3 V TIMEKEEPER® supervisor

STMicroelectronics 

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

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